Urban Water Management Plan 2005 Final Report� '
3 �
� ■
; � F�nal Report
�
� r . . . .
� . . . . . .
k � � � . . , -
, �
�:�::�
� . -
- ,
� - � ,.
' `�' �-... ���
i :
�.. .- -
� � t �T� - - }
��,�,��:
'
'
' � :
'
A� TA Q�
' -
r�
�°ri�'�"`•� �tso•�'"`�` �
' etrc Y n �st��
� South Tahoe
�
Public Utility District
� January 2007
� Kennedy/Jenks Consultants
Engineers &Scientists
�
� 1 1
i�
I
�
Kennedy/Jenks Consultants
5190 Neil Road, Suite 210
. Reno, Nevada 89502
775-827-7900
775-827-7925 (Fax)
Final Report
Urban Water Management Plan
2005 Update
January 2007
Preparedfor
South Tahoe Public Utility District
1275 Meadow Crest Drive
South Lake Tahoe, CA 96150-7401
K/J Project No.0695012
�
�
Table of Contents
Lisfof Tab/es................................................................................................................................. v
Listof Figures............................................................................................................................... vi
Listof Appendices........................................................................................................................ vi
Section 7: Introduction...............................................................................1-1
1.1 Objectives ...........................................................................................1-1
1.2 Scope of Services...............................................................................1-1
1.3 Authorization .......................................................................................1-1
Section 2: Urban Water Management Planning Act...................................2-1
2.1 History of Urban Water Management Planning Act.............................2-1
2.2 Recent Changes to Urban Water Management Planning Act.............2-2
2.3 2005 UWMP Requirements.................................................................2-3
2.4 District Compliance with UWMP Act...................................................2-4
2.5 Plan Adoption......................................................................................2-5
2.6 Public Participation..............................................................................2-5
Section3: Water Service Area....................................................................3-1
3.1 History and Description........................
...............................................3-1 I
; 3.1.1 Demographic Profile................................................................3-1 '
3.1.2 The Politics of Growth .............................................................3-1
3.1.3 Redevelopment.......................................................................3-2
3.1.4 Population ...............................................................................3-3
3.2 Climate................................................................................................3-3
3.3 Customer Connections........................................................................3-4
3.4 Water Demands ..................................................................................3-7
. 3.4.1 Current Demands....................................................................3-7
3.4.2 Unaccounted-For Water..........................................................3-7
3.4.3 Future Water Demands...........................................................3-8
3.5 Current Water Resources....................................................................3-8
3.5.1 Groundwater Resources..........................................................3-9
3.52 Surface Water Resources .....................................................3-11
3.5.3 Inconsistent Water Sources...................................................3-11
3.5.3.1 MTBE...................................................................3-11
3.5.3.2 Production Loss due to Aging Wells....................3-13
3.5.3.3 Mitigation of Inconsistent Water Supply
Sources................................................................3-13
3.5.4 Water Quality of Existing Water Resources ..........................3-14
: 3.6 Future Water Resources...................................................................3-14
Final STPUD UWMP Update �
g:lprqects12W6`4695012-south tahoe uwmp4eportlfinalWwmp report-v3.doc
Table of Contents (cont'd)
3.6.1 Groundwater Resources........................................................3-14
3.6.2 Surface Water Rights ............................................................3-15
3.6.3 Transfer or Exchange Opportunities......................................3-16
3.6.4 Recycled Water.....................................................................3-18
3.7 Reliability Planning............................................................................3-18
3.7.1 Normal Water Year Assessment...........................................3-19
3.7.2 Single Dry Water Year Assessment......................................3-20
3.7.3 Multiple Dry Water Year Assessment....................................3-20
Section4: Recycled Water.........................................................................4-1
4.1 Wastewater Treatment........................................................................4-1
4.2 Recycled Water Facilities....................................................................4-1
4.2.1 General System Description....................................................4-2
4.2.1.1 Harvey Place Reservoir.........................................4-2
4.2.1.2 Diamond Ditch System ..........................................4-2
4.2.1.3 Dressler On-farm System ......................................4-3
4.3 Recycled Water Uses..........................................................................4-3
4.3.1 Current Users..........................................................................4-3
4.3.1.1 Emergency Fire Suppression.................................4-4
4.3.2 Future Potential Users.............................................................4-4
4.3.2.1 Potential Alpine County Users...............................4-4
4.3.2.2 Potential Nevada Users.........................................4-5
4.4 Recycled Water Quantity.....................................................................4-5
4.5 Recycled Water Quality.......................................................................4-6
4.6 Regulatory Requirements for Use of Recycled Water.........................4-6
Section 5: Water Shortage Contingency Plan............................................5-1 I
5.1 Introduction .........................................................................................5-1
5.2 Stages of Action..................................................................................5-1
5.2.1 Stage 1 - Normal Conditions. ..................................................5-1
5.2.2 Stage 2 - Minor Supply Shortage ............................................5-2
, 5.2.3 Stage 3 - Severe Water Supply Shortage ...............................5-2
5.2.4 Stage 4- Critical Water Supply Shortage................................5-2
5.2.5 Stage 5-Water Emergency....................................................5-3
: 5.3 Penalties .............................................................................................5-4
5.3.1 First Violation...........................................................................5-4
5.3.2 Second Violation......................................................................5-4
5.3.3 Third Violation..........................................................................5-4
5.3.4 Fourth Violation .......................................................................5-4
5.4 Revenue and Expenditure Impacts.....................................................5-4
5.4.1 Reduction Measuring Mechanism...........................................5-4
5.4.2 Measures to Overcome Impacts..............................................5-5
Final STPUD UWMP Update °
g.Iprqects12006`AG95012-sauM tahoe uwmp4epoMfinalWwmp report-v3.doc
i
Table of Contents (cont'd)
Section 6: Demand Management Measures...............................................6-1
6.1 Introduction .........................................................................................6-1
6.2 Historical Demand Management Efforts..............................................6-1
6.3 Demand Management Program..........................................................6-2
6.3.1 BMP 1 -Water Survey Programs for Single-Family
Residential and Multi-Family Residential Customers..............6-2
6.3.1.1 Interior Measures...................................................6-2
6.3.1.2 Exterior Measures..................................................6-3
6.3.1.3 Proposed Measure ................................................6-4
6.3.1.4 Schedule and Cost ................................................6-4
6.3.1.5 Estimated Savings and Method Effectiveness.......6-4
6.3.2 BMP 2 - Residential Plumbing Retrofit....................................6-5
6.3.2.1 Fixture Retrofit Program.........................................6-5
6.3.2.2 Proposed Measures...............................................6-6
6.3.2.3 Schedule and Cost ................................................6-6
6.3.2.4 Estimated Savings and Method Effectiveness.......6-6
6.3.3 BMP 3—System Water Audits, Leak Detection and
Repair ...............................................................................6-7
6.3.3.1 Main Replacement Program..................................6-7
6.3.3.2 Proposed Measures...............................................6-8
6.3.3.3 Schedule and Cost ................................................6-8
6.3.3.4 Estimated Savings and Method Effectiveness.......6-8
6.3.4 BMP 4— Metering with Commodity Rates for All New
Connections and Retrofit of Existing Connections ..................6-8
6.3.4.1 Proposed Measure ..............................................6-10
6.3.4.2 Schedule and Cost ..............................................6-10
6.3.4.3 Estimated Savings and Method Effectiveness.....6-10 �,
6.3.5 BMP 5—Large Landscape Conservation Programs and ',
Incentives .............................................................................6-10
6.3.5.1 Proposed Measure ..............................................6-12
6.3.5.2 Schedule and Cost ..............................................6-12
6.3.5.3 Estimated Savings and Method Effectiveness.....6-12
6.3.6 BMP 6— High-Efficiency Washing Machine Rebate
Programs .............................................................................6-13
6.3.6.1 Proposed Measure ..............................................6-14
6.3.6.2 Schedule and Cost ..............................................6-14
6.3.6.3 Estimated Savings and Method Effectiveness.....6-14
6.3.7 BMP 7—Public Information Programs ..................................6-14
6.3.7.1 Proposed Measure ..............................................6-16
' 6.3.7.2 Schedule and Cost ..............................................6-17
6.3.7.3 Estimated Savings and Method Effectiveness.....6-17
6.3.8 BMP 8—School Education Programs...................................6-17
6.3.8.1 Proposed Measure ..............................................6-18
6.3.8.2 Schedule and Cost ..............................................6-18
Final STPUD UWMP Update iii
g:lyrojecls�2006�4595012-sauM lahoe uwmp4epallfinalWwmp reporl-v3 doc
�I
i
�
Table of Contents (cont'd)
6.3.8.3 Estimated Savings and Method Effectiveness.....6-18
6.3.9 BMP 9—Conservation Programs for Commercial,
Industrial, and Institutional (CII)Accounts.............................6-19
6.3.9.1 Proposed Measure ..............................................6-21
6.3.9.2 Schedule and Cost ..............................................6-21
6.3.9.3 Estimated Savings and Method Effectiveness.....6-21
6.3.10 BMP 10—Wholesale Agency Assistance Programs.............6-21
6.3.10.1 Proposed Measure ..............................................6-22
6.3.10.2 Schedule and Cost ..............................................6-22
6.3.10.3 Estimated Savings and Method Effectiveness.....6-22
6.3.11 BMP 11 —Conservation Pricing.............................................6-22
6.3.11.1 Proposed Measure ..............................................6-23
6.3.11.2 Schedule and Cost ..............................................6-24
6.3.11.3 Estimated Savings and Method Effectiveness.....6-24
6.3.12 BMP 12 -Conservation Coordinator......................................6-24
6.3.12.1 Proposed Measure ..............................................6-25
6.3.12.2 Schedule and Cost ..............................................6-25
6.3.12.3 Estimated Savings and Method Effectiveness.....6-25
6.3.13 BMP 13—Water Waste Prohibition.......................................6-25
6.3.13.1 Proposed Measure ..............................................6-27
6.3.13.2 Schedule and Cost ..............................................6-27
6.3.13.3 Estimated Savings and Method Effectiveness.....6-27
6.3.14 BMP 14—Residential ULFT Replacement Programs...........6-27
6.3.14.1 Proposed Measure ..............................................6-29
6.3.14.2 Schedule and Cost ..............................................6-29
6.3.14.3 Estimated Savings and Method Effectiveness.....6-29
6.4 Summary of Program Costs and Water Savings...............................6-30
� References.....................................................................................................................................i I
Final STPUD UWMP Update iv
g:lprojects�200610695012-south tahoe uwmp4epor1lfinalWwmp report-v3.doc
Ii
�
(
Table of Contents (cont'd)
List of Tables
1-1 Summary of Requirements for Preparation of the 2005 UWMP
3-1 District Current and Projected Population
3-2 Local Climate
3-3 Local Climate Summary
3-4 Number of Connections and Water Demands 2000-2030
3-5 Current and Projected Water Supplies (AFY)
3-6 Active Groundwater Resources
3-7 Historical and Projected Groundwater Pumped (AFY)
3-8 Production Loss Due to MTBE Contamination
3-9 Water Purchase Evaluation
3-10 Projected Normal Water Year Supply and Demand
3-11 Projected Single Dry Water Year Supply and Demand
3-12 Projected Multiple Dry Water Year Supply and Demand for 2006-2010
3-13 Projected Multiple Dry Water Year Supply and Demand for 2011-2015
3-14 Projected Multiple Dry Water Year Supply and Demand for 2016-2020
3-15 Projected Multiple Dry Water Year Supply and Demand for 2021-2025
4-1 Recycled Water Production 2000-2030
4-2 Recycled Water Demand 2005 to 2030 I
5-1 Water Supply Shortage Stages and Conditions 'i
6-1 Residential Water Surveys 2001-2005 '
6-2 Proposed Residential Water Surveys 2006-2010
6-3 Residential Retrofit Rebates 2001-2005
6-4 Proposed Residential Retrofit Rebates 2006-2010
6-5 Distribution System Programs 2001-2005
6-6 Proposed Distribution System Programs 2006-2010
6-7 Metering Program Summary 2001-2005
6-8 Proposed Metering Program Summary 2006-2010
6-9 Large Landscape Programs 2001-2005
6-10 Proposed Large Landscape Programs 2006-2010
6-11 Washing Machine Rebate Program 2001-2005
6-12 Proposed Washing Machine Rebate Program 2006-2010
6-13 Public Information Programs 2001-2005
6-14 Proposed Public Information Programs 2006-2010
6-15 School Presentations 2001-2005
Final STPUD UWMP Update �
g:brajects�2006U�95012-south lahoe uwmp4epoA\finalWwmp reporFv3.da
'i
Table of Contents (cont'd)
I
6-16 Proposed School Presentations 2006-2010
6-17 CII Programs 2001-2005
6-18 Proposed CII Programs 2006-2010
6-19 CII Toilet Replacement Rebates 2001-2005
6-20 Proposed CII Toilet Replacement Rebates 2006=2010
6-21 Water and Sewer Rates by Account Type
6-22 Water Conservation Coordinator Program 2001-2005
6-23 Proposed Water Conservation Coordinator Program 2006-2010
6-24 Water Waste Prohibition Program 2001-2005
6-25 Proposed Water Waste Prohibition Program 2006-2010
6-26 Residential Toilet Replacement Rebates 2001-2005
6-27 Proposed Residential Toilet Replacement Rebates 2006-2010
6-28 Demand Management Program Estimated Costs and Water Savings 2006-2010
List of Figures
3-1 Vicinity Map
3-2 District Boundary
List of Appendices
A Definitions for Selected Abbreviations and Terminology
B Urban Water Management Planning Act I
C Notice of Public Hearing and Resolution Adopting the UWMP �'
D Truckee River Operating Agreement
E STPUD Policy Regarding MTBE
F Water Shortage Operations Plan
G STPUD 2005 Annual Consumer Confidence Report
H District Water Rates
I Cost Effectiveness of Metering the Districts Residential Customers
J Examples of Public Education Materials
K California DWR UWMP Review for Completeness Forms
L California DWR UWMP Review for DMMs for Completeness Forms
M Groundwater Management Plan
Final STPUD UWMP Update ��
9:�pryects1200610695012-south tahoe uwmp4eporflfinalWwmp report-v3.doc
i
�
I
� Kennedy/Jenks Consultants
�
Section 1: Introduction
This section presents a summary of the Objectives, Scope of Work, and Authorization for this
report.
1.1 Objectives
The South Tahoe Public Utility District (District) has prepared this Urban Water Management
Plan (UWMP) Update. The 2005 UWMP Update is a public statement of the goals, objectives,
and strategies needed to maintain a reliable water supply for the District's service area. It is
important to understand that this UWMP be viewed as a long-term, general planning document,
rather than as policy for supply and demand management.
The State of California Water Code (Section 10610 to 10656) requires water suppliers to
prepare an UWMP to promote water conservation and efficient water use. Objectives of this
UWMP include the following:
• Accomplishes water supply planning over a 20-year period in 5-year increments
. Identifies and quantifies adequate water supplies, including recycled water, for existing
and future demands, in normal, dry, and multiple dry years
• Identifies actions to prepare for and implement during a catastrophic interruption of water
supplies
• Implements conservation and efficient use of urban water supplies.
1.2 Scope of Services
This 2005 UWMP Update is divided into five primary sections. Section 2 describes the Urban
Water Management Planning Act(Act) (State of California Water Code, Section 10610 to ,
10656). Section 3 describes the DistricYs water service area including water supply and ',
demands. Section 4 describes the District's recycled water program. Section 5 describes the '
DistricYs water shortage contingency planning. Section 6 defines existing and recommended
water demand management measures (i.e., water conservation). References are provided
following Section 6, and definitions for selected abbreviations and terminology are included in
Appendix A.
1.3 Authorization
The District authorized Kennedy/Jenks Consultants (Kennedy/Jenks)to provide engineering
services related to preparation of this Report under Task Order 16 dated 4 May 2006 and
Master Agreement dated 3 February 1999.
Final STPUD UWMP Update Page 1-1
giprajecls1Z00G�A695012-sautl�lahoe uwmp4epatlfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
i
Section 2: Urban Water Management Planning Act
This section presents a brief description of the Urban Water Management Planning Act(Act). In
addition, amendments to the original Urban Water Management Planning Act are defined
including provisions that apply to the District.
2.1 History of Urban Water Management Planning Act
In 1983, the California Legislature enacted the Urban Water Management Planning Act
(AB 797; Water Code, Division 6, Part 2.6, Section 10610-10656). This Urban Water
Management Planning Act requires water suppliers serving more than 3,000 customers or water
suppliers providing more than 3,000 AF of water annually to prepare an UWMP to promote
water demand management and efficient water use. Currently, the District serves more than
3,000 customers and provides more than 3,000 AF of water per year. The Urban Water
Management Planning Act also required water suppliers to develop, adopt, and file an UWMP
(or update) every five years until 1990. In 1990, the Legislature deleted this sunset provision
(AB 2661). Accordingly, the UWMP must be updated a minimum of once every five years on or
before December 31 in the years ending in 0 and 5. A copy of the current Urban Water
Management Planning Act is provided in Appendix B.
The Legislature enacted two measures that modified the Urban Water Management Planning
Act in 1991. The first measure requires water suppliers to include an urban water shortage
contingency analysis as part of its urban water management plan (AB 11). This measure also
exempts the implementation of urban water shortage contingency plans from California
Environmental Quality Act(CEQA). The second measure requires an UWMP to describe and
evaluate water recycling activities, to be updated once every five years, include an estimate of
projected potable and recycled water use, and to describe activities relating to water audits and
incentives (AB 1869). Another provision of this bill requires agricultural water suppliers to
include in their informational reports and water management plans a description of water
recycling activities.
In 1993, the Legislature enacted a measure, which allows members of the California Urban
Water Conservation Council (CUWCC)to submit to the state a copy of their annual report to the
Council to satisfy current reporting requirements relating to urban water management plans ,
(AB 892). '
The Legislature enacted two measures in 1994. The first measure authorizes an urban water
supplier to recover in its rates the costs incurred in preparing its plan and implementing the
reasonable water conservation measures included in the plan (SB 1017). Any best water
management practice that is included in the plan that is identified in the "Memorandum of
Understanding Regarding Urban Water Conservation in California" (CUWCC, 2000) is deemed
to be reasonable. The second measure requires water suppliers to give greater consideration
to recycled water in their urban management plans (AB 2853).
In 1995, the Legislature enacted two additional measures. The first measure requires urban
water suppliers to include, as part of their urban water management plans, a prescribed water
supply and demand assessment of the reliability of their water service to their customers during
Final STPUD UWMP Update Page 2-1
g:prajeds12006�0695012-soulh t�oe uwmp4epat�finalWwmp reporl-v3 doc
jKennedy/Jenks Consultants
I
normal, dry, and multiple dry water years (AB 1845). The assessment shall compare total water
supply sources available to the supplier with the total projected water use over the next
20 years, in 5-year increments. It also requires the supplier to provide the water service
reliability assessment to any District or county within which it provides water within 60 days of
the adoption of its urban water management plan. The second measure made the following
changes to the Urban Water Management Plan Act (SB 1011):
• Revises the components required to be included in the plan.
• Requires urban water suppliers to update their plans at least once every five years on or
before December 31 in the years ending in 5 and 0.
• Requires urban water suppliers to include a prescribed water supply and demand
assessment.
• Requires suppliers to encourage active involvement of diverse sociat, cultural, and
economic elements of the population within the service area prior to and during
preparation of the plan.
• Prior to adopting the plan, the urban water supplier shall make the plan available for
public inspection and shall hold a public hearing thereon.
• Deletes the provision requiring action alleging failure to adopt a plan to be commenced
within 18 months after commencement or urban water service after January 1, 1984.
• Defines "demand managemenY' and "recycled water," revises the definition of"plan"and
deletes the definition of"conservation."
� Exempts suppliers who are implementing a conservation program from conducting a
cost-benefit analysis of those conservation programs.
• Requires the Department of Water Resources to submit a report to the Legislature
summarizing the status of plans on or before December 31 in the years ending in
1 and 6. i
2.2 Recent Changes to Urban Water Management Planning Act '
In September of 2000, Governor Davis signed legislation (AB 2552)that requires urban water
suppliers to submit their UWMPs to cities and counties where the water supplier provides water.
The intent of this new requirement is to help ensure that District and county planning agencies
have reliable water suppty information on which to make growth decisions.
Additional changes approved in 2001 include AB 901, SB 221, SB 610, and SB 672. AB 901
requires UWMP to include information, relating to the water quality of source suppfies and the
manner in which the water quality affects water management strategies and supply reliability.
This bill requires the plan to describe plans to supplement a water source that may not be
available at a consistent level of use. SB 221 prohibits a city or county from approving a
residential subdivision of more than 500 units unless the city council or the board of supenrisors
provides written verification from the area's water service provider that a sufficient water supply
Final STPUD UWMP Update Page 2-2
g:brajecls�Z006b695012-south lahoe uwmp4eportlfinalWwmp repat-v3.doc
Kennedy/Jenks Consultants
is available for the development. SB 610 requires additional information to be included as part
of the UWMP for urban water supplies whose water supply includes groundwater. It requires a
city or county that determines that a development project is subject to the California
Environmental Quality Act to identify any public water system that may supply water for the
project and to request that system to prepare a specific water supply assessment. It requires
urban water suppliers to include in the UWMP a description of all water supply projects and
programs that may be undertaken to meet total projected water use. This bill requires the DWR
to take into consideration whether an urban water supplier has submitted an updated UWMP in
determining eligibility for funds made available pursuant to any program administered by DWR.
SB 672 requires urban water suppliers to describe in the UWMP water management tools and
other options used by that agency to maximize resources and minimize the need to import water
from other regions. A copy of the current Urban Water Management Planning Act is provided in
Appendix B.
In addition, the State of California Department of Water Resources (DWR) developed two sets
of worksheets to aid water suppliers preparing urban water management plans and to guide
DWR staff with the review of submitted plans. These worksheets include the"2005 UWMP
Review for Completeness Form"which covers the general provisions of the Urban Water
Management Planning Act, and "2005 UWMP Review of DMMs for Completeness Form,"which
focuses solely on the 14 demand management measures from Section 10631 (fl of the Urban
Water Management Planning Act. A copy of each of these completed worksheets is provided in
Appendix K and L, respectively. The worksheets are useful organization tools to ensure that
various provisions of the law have been addressed in the plan. The Urban Water Management
Planning Act does not require a water supplier to use either of the worksheets. The use of
these tools is optional.
2.3 2005 UWMP Requirements
Table 1-1 shows requirements of the "Guidebook to Assist Water Suppliers in the Preparation of
a 2005 UWMP" by the California Department of Water Resources: I,
TABLE 1-1 '
SUMMARY OF REQUIREMENTS FOR PREPARATION OF THE 2005 UWMP
Code
Requirement Section Report Section
1. Specifies who must prepare an UWMP 10620 Page 2-1
2. Addresses who must prepare an UWMP 10717 Page 2-1
3. Discuss whether Agency participated in a regional, 10620 NA
watershed or basin plan
4. Describe coordination with other agencies 10620 Page 2-5
5. Discuss tools and options to maximize resources and 10620 e Page 3-8
minimize need to import water
6. Suppliers must notify cities and counties 10621 NA
7. Must cover 20 years in 5-year increments 10631 The entire report
8. Provide service area population Page 3-3
9. Provide climate information based on 30 years Page 3-3
Final STPUD UWMP Update Page 2-3
g.brqeds�200610695012-saU�tahoa uwmp4eport\finalWwmp report-v3.doc
Kennedy/Jenks Consultants
Code
Requirement Section Report Section
10. Describe demographic factors-housing density, Page 3-1
future development, income levels
11. Identity current and planned water sources 10631 Page 3-8, 3-14
12. Provide information on groundwater- basins, 10631 Page 3-8
extractions, pumping levels, wate�quality, storage,
recharge, adjudication
13. Describe reliability of water supply and vulnerability to 10631 Page 3-8, 3-18
seasonal or climatic shortage and describe alternative
sources
14. Describe opportunities for exchanges and transfers 10631 Page 3-16
15. Describe water use by customer type 10631 Page 3-4
16. Identify sales to other agencies , additional water uses 10631 Page 3-7
and losses and total water use
17. Demand Management Measures(DMM) 10631 Page 6-2
18. Describe evaluation of DMMs not implemented 10631 NA
19. Planned water supply projects/programs 10631 Page 3-14
20. Describe development of desalinated water 10631 ' 3-11
21. Describe current or projected supply Page 3-8, 3-14
22. Include copies of annual DMM implementation 10631.5 Appendix L
23. Provide water shortage contingency plan -stages of 10632 a Page 5-1
action
24. Estimate minimum supply next 3 years 10632 Page 3-9
25. Describe catastrophic supply interruption plan 10632° Page 5-1, Appendix F
26 Describe prohibitions penalties etc. 10632 Paqe 5-4, Appendix F
27. Analyze revenue impacts due to reduced sales during 10632 9 Page 5-4
shortages ��
28. Provide draft ordinance and use monitoring procedure �pg32�'i8''� Appendix F '�
29. Coordinate with other users 10633 NA
30. Provide wastewater quantity, quality and current uses 10633� Page 4-1
31. Discuss recycled water plan 10633 Page 4-1
32. Discuss water quality impacts on reliability 10634 Page 3-11
33. Discuss water service reliability- normal year 10635 Page 3-19
34. Discuss water senrice reliability-single dry year 10635 Page 3-20
35. Discuss water service reliability-multiple dry years 10635 Page 3-20
36. Adoption and implementation of UWMP 10640 Appendix C
2.4 District Compliance with UWMP Act
The District prepared an Urban Water Management Plan in 2002. This plan was adopted by the
District Board at the 1 August 2002 Board Meeting.
Final STPUD UWMP Update Page 2-4
g:lprojects12006`A695012-south lahoe uwmp�repal�finalWwmp report-v3.dac
i
Kennedy/Jenks Consultants
2.5 Plan Adoption
Prior to adopting the plan, the urban water supplier shall make the plan avai�able to the pubiic
inspection and shall hold a public hearing thereon. The UWMP must be adopted by the District,
and is subject to California Government Code pertaining to legal public noticing. A copy of the
public hearing announcement and District Resolution adopting the UWMP is provided in
Appendix C. The UWMP must be filed with the DWR within 30 days of adoption.
In accordance with the Urban Water Management Planning Act, this plan is to be updated at
least once every 5 years on or before December 31 in the years ending in 5 and 0. Following
an update, warranted amendments or changes must be made. The amended plan must be
readopted by the District and filed with the DWR.
District staff and the firm of Kennedy/Jenks Consultants prepared this UWMP Update. The Plan
was adopted by the Board of Directors on 15 February 2007, and will be submitted to the
California Department of Water Resources.
2.6 Public Participation
The District has actively encouraged public participation in its water management planning
efforts, hosting annual public hearings to describe new capital water projects, budgets, rates,
conducting "open house"and neighborhood meetings at new facilities. A citizen's advisory
group was established to assist the District in developing a Groundwater Management Plan to
prevent further contamination of groundwater.
District staff works with the City of South Lake Tahoe staff to maximi2e landscape water use
efficiency at ball fields and public parks especially during periods of water use restrictions. The
agencies have cooperated in finding landscape uses for water that does not meet drinking water �,
standards, thereby freeing up additional potable water for the community. '�,
For this UWMP, legal public notices and mailings were used to ensure full participation by
District customers and interest groups, as well as other local water and planning agencies. A
public meeting was held on 15 February 2007, to allow for review and comment on the final plan
prior to the Board's approval (a copy of the Board resolution is provided in Appendix C).
Final STPUD UWMP Update Page 2-5
g:brqeds�2006`0695012-south lahoe uwmp4eporllfinalWwmp reporl-v3.doc
Kennedy/Jenks Consultants
Section 3: Water Service Area
This section documents the DistricYs history, climate, land use, water demands, water
resources, water quality, and reliability planning.
3.1 History and Description
STPUD is a California Special District established in 1950. The 27,000 acre service area
covers the south shore of Lake Tahoe from Emerald Bay on the west, Christmas Valley on the
south, the California-Nevada stateline to the east, and Lake Tahoe on the north. See Figure 3-1
for a Vicinity Map. Originally the services of the District were limited to wastewater collection,
treatment, and disposal. In the mid-1970's the District began to acquire private water
companies and presently is the single largest water purveyor within the Lake Tahoe basin.
Figure 3-2 displays a map of the District boundaries and service areas.
Tourism forms the economic base of the local community. Though the beauty and recreational
opportunities have attracted millions of visitors to South Lake Tahoe each year in recent history,
the real beginnings of development were during Nevada's silver mining years of the 1850s and
1860s. Early pioneers struggled to carve out a year round existence, with more and more
summer cabins being built during the first half of the 20th century. Small communities grew
throughout the region and roads and schools were built.
3.1.1 Demographic Profile
STPUD provides wastewater collection, treatment, and disposal to 17,000 customers; 13,000 of
which are also water customers. The vast majority of District water customers, approximately �,
80 percent, are residential. The population within the STPUD senrice area consists of residents ',
in the City of South Lake Tahoe and in the Montgomery Estates, Tahoe Paradise, Meyers,
Angora Highlands, Fallen Leaf Lake, and Christmas Valley portions of eastern EI Dorado
County.
3.1.2 The Politics of Growth
An understanding of the STPUD service area is incomplete without a discussion of the federal
bi-state agency which determines growth throughout the region.
More than a hundred years ago, conservationists voiced concern about the impacts of tourism,
ranching, and logging on the Lake Tahoe environment. Their wish to make Lake Tahoe a
national forest or park didn't gain enough support in Washington D.C., primarily because much
of the land in the Lake Tahoe basin was already privately owned and had been developed or
logged. Many thought it was too late to preserve Lake Tahoe.
But conservationists continued lobbying for environmental protection as logging and ranching
waned, ski resorts expanded, and high-rise Stateline casinos were built. The debate came to a
climax in the late 1960s after two decades of rapid growth. The governors and lawmakers in
Final STPUD UWMP Update Page 3-1
A;�prqeds120061069W 12-souM tahoe uwmpYepatlfinalWvrtnp report-v3.doc
i
,
STPUD
8
SAN FRANpSf,O
SANTA
BARBARA
l05 IwGELES
8
, SAN D1EC0
�
�
<
0
>
�
�
0
g
�
z Kemedy/Jenks ConsuRaMs
5� SOUTH TAHOE PUBLIC UTILITIES DISTRICT
� URBAN WATER MANAGEMENT PLAN
�
m
m
� VICINITY MAP
_
<
�
g K/J 0695012
� JANUARY 2007
�
a
� FIGURE 3-1
�
k
� N V � � � O N
� � � � a � O O M
� N +.. N � N O
� C L
N w?
C N � >� � 7 �
' (� — p� > � (0 �
� y � � � � �
Y � f9
� ' ? � � a
� '_ - .t � �+ a �
c
N
�1..., r + x N N > O
� � � > m
� �,,� 3 i; � � �� N fp N �
� � W Y � �
� � � , � L (A
'+a�` � � � � �
a � � �
�
'�l��':., i�� W
� ��� �
N
j Z �
4 �
��� O
Wp WZ N
r,� IV NW W WZ
''► ") W �
� = N N
L��.�.. .��ec 1.. �j1W�N ZN �
�� Z 7
_`'' ' f� q`, y � �� ���Y}W O�
[4
l � /��� T � � 'V �<'VN����O�= y�
+ Y '/ �f � � =Yl�����J�N =��
,,. <,,,� �� W 8Z�y=0�����������
��,. <`c�c.l SS_Y 7
, + S
� �.+� r •� • • •
� �": ■ ��� �[I�1�I�l�i�
� �. ,y
��t`A ��Y`
N` r
, !�
� � ' ��
,� ��2: �
� �� f4� ����.,� ��
� �
� ��
�r-- '
� ��� �' , � �'� �
� ��� �
� .
� �
�` '� �� U
y � a� � y •��+
� r � y
(�`�� � �,��� ' r o
��_1 �Ir,_ �i. , _
+���� Z r ?
� x �'_,.�, 'U
�,J �
�
n.
�� . �� � �
0
L
�� � f6
H
L
7
i�'`�_ v�
� ai
U
�
7
O
�
j
� Kennedy/Jenks Consultants
California and Nevada approved a bi-state compact which created a regional planning agency
to oversee development at Lake Tahoe. In 1969, the United States Congress ratified the
agreement and created the Tahoe Regional Planning Agency (TRPA). TRPA was the first bi-
state regional environmental planning agency in the country.
The bi-state compact, as revised in 1980, gave TRPA authority to adopt environmental quality
standards and to enforce ordinances designed to achieve the standards. The standards, or
"thresholds"are in nine categories: water and air quality; soil conservation; vegetation; fisheries;
wildlife; scenic quality; noise; and recreation. The thresholds were adopted by the TRPA
Governing Board in 1982 along with 36 indicators which measure the success of the standards.
The Governing Board adopted a long-range regional plan in 1984 amidst concerns of both
environmentalists and developers. Law suits were immediately filed in federal court and the
judge effectively ordered a moratorium on new building at Lake Tahoe which lasted from 1984-
1987. After three years of negotiations, the lawsuit was settled and the TRPA's 1987 Regional
Plan was adopted, creating a 20-year planning horizon, with 5-year benchmark Evaluation
Reports on the levels of attainment for each of the thresholds. The Regional Plan is in effect
today. A new Regional Plan will be adopted for the next planning horizon 2007-2027. The
majority of TRPA's thresholds remain out of attainment.
Since 1987 the limit for residential development in the STPUD service area has been 116 single
family dwellings per year(out of 300 per year for the entire Lake Tahoe basin). Recently the
TRPA recommended a lower level of residential development-225 for the Lake Tahoe basin,
about 87 for the DistricYs service area—to be extended through 2006, contingent on key
environmental recommendations. Note: This figure includes any multi-family dwellings that may
be approved (i.e., a triplex would be considered 3 of the allowed dwellings.)
Commercial development is also very strictly allocated in a complex manner which assigns
square footage in approved "community plan areas" and which is contingent on progress of the
basinwide$900 million Environmental Improvement Program. There is only 150,000 sq. ft. of
new commercial development recommended for the entire Lake Tahoe basin through 2006.
3.1.3 Redevelopment
The most significant commercial development in the DistricYs service area over the past ten i
years has been redevelopment projects which replace old, dilapidated and out-dated strip '
development with high-quality lodging and related guest facilities. Two large redevelopment '
projects have been completed, two are currently under construction, with more projects on the
planning horizon. While there is an overall reduced number of overnight lodging rooms in the
redevelopment project areas (using modern water conserving fixtures)the overall occupancy is
anticipated to be significantly higher. In addition, there is landscaping planned to beautify
redeveloped sites. The District was able to participate in the extensive environmental review
process, commenting on Redevelopment Agency's estimate of water use. The result of the
community's redevelopment effort in terms of water is a moderate net increase in demand.
Final STPUD UWMP Update Page 3-2
g:lprojects1200610695012-south Izhoe uwmp4eporl\finalWwmp repat-v3.doc
Kennedy/Jenks Consuitants
�
I
3.1.4 Population
The DistricYs current year-round population base is approximately 32,200 as shown in
Table 3-1. Over the next five years, the population of the Lake Tahoe Region of EI Dorado
County, which corresponds to the District's service area, is expected to grow slowly to about
32,800, representing an average annual growth rate of only 0.4 percent (2002, TRPA). This
slow growth is in stark contrast to California's annual growth rate of 1.25 percent and the Lake
Tahoe Region's overall annual growth rate of 2.7 percent. Projected population for 2020 to
2030 will be approximately 34,200.
TABLE 3-1
DISTRICT CURRENT AND PROJECTED POPULATION
2005 2010 2015 2020 2025 2030 -opt
32,150 32,793 33,000 33,220 33,220 33,220
Visitors to the DistricYs service area, especially during the summer season, can easily double
the population numbers above. The demand spikes created by warm weather, irrigation, and
summer weekend visitors create the peak water demand that drives the sizing of all the
DistricYs water production, storage, and distribution facilities.
3.2 Climate
At 6,200 feet elevation, the residents in the District service area enjoy distinct seasons. The
four sharply defined seasons bring a continual round of variety and at the same time greatly
affect water use. Average monthly air temperature varies befinreen 27°F and 60 °F (WRCC,
2006). See Tables 3-2 and 3-3 for details. Recorded daily extremes are 94 °F (August 15,
1933)and -16°F (December 11, 1972) (WRCC, 2006). Annual reference evapotranspiration
(ETo) for Tahoe City is 31.2 inches (DWR, 1987). See Tables 3-2 and 3-3 for details.
TABLE 3-2 ��,
LOCAL CLIMATE '
0.6 0.3 1.3 3.8 5.4 5.9
��::,�. ,. 5.6 4.8 4.1 2 1 0.8
� �"�" 30 30 27 39 49 57
�..:,,
� "9�.. �4.� �_ �F� i ,�.
. �:�-.� - 6.5 4.3 2.2 0.7 0.2 0
�<;
�a``.;.,.. 0.3 0.5 2 2 4J 5.4
��` ' ���t:,. 59 60 50 46 38 34
Final STPUD UWMP Update Page 3-3
9:lprqects1200G�p695012-soutl�tahoe uwmp4epor1lfinalWwmp repat-v3.doc
Kennedy/Jenks Consultants
�
i TABLE 3-3
( LOCAL CLIMATE SUMMARY
��:. ��u
�' '�-� 31.2
,�,' -�;��::°..�._;.:>>: - 33.2
j�;" �.�. ' 43.3
California's Sierra Nevada snow falls in great quantities from late November to early April. The
average cumulative winter snow pack is 216 inches or nearly 20 feet. Total average annual
precipitation is 32.91 inches (31.85, WRCC, 2006), however, consistent with the rest of
California, there are wide swings off of"normal." See Tables 3-2 and 3-3 for details.
3.3 Customer Connections
The South Tahoe Public Utility District is by far the largest domestic water utility in the South
Lake Tahoe area. This is true on both sides of the California-Nevada border. Currently, the
District serves water to over 13,800 single family and multi-family accounts and 760 commercial
and govemment accounts. See Table 3-4 for details of customer connections for 2000 to 2030.
Most of the District's customers are unmetered residential accounts (94 percent of total)which
are assessed quarterly flat water rates. Although there are unmetered commercial customers
(18 percent), the majority of the commercial customers (72 percent) are metered and assessed
metered (volume-based)water rates. The service area population data (0.4% annual increase)
coupled with strict development limits (87 to 116 single family dwellings per year, including
multi-family dwellings, all of which are not in the District's water service area), and
redevelopment projects vs. new development, result in very modest population projections.
The number of customers is anticipated to grow to 17,400 by 2030 (see Table 3-4). However,
the District does not anticipate a significant change in the percentage of unmetered connections
over the next 20 years.
TABLE 3-4
NUMBER OF CONNECTIONS AND WATER DEMANDS 2000-2030
2000 ,
metered unmetered '
#�Cif ��
'��3' .. 11 5 11,301 3,920
�:�'. 4��. 142 409 962 962
�':��`="�R�`� 590 1,502 150 150
��:;;. ..
:;<<
s
..(.
.�;;$_
��aa.pv
"�,.. Y3:�.��: :<�.. 10
��� s� w��$;y �� f�� � .�� ••��. ���
�'X:' k:����� `'��'n%
Final STPUD UWMP Update Page 3-4
9:brojeds�2006`A695012-south tahoa uwmpYeporl\finalWwmp repat-v3.doc
Kennedy/Jenks Consultants
j 2005
i metered unmetered
�"ff�J�T��11fl1I�� .$. � %h ii.
'.�.,. .. , u
26 10 12,426 2,994
150 396 1,202 1,202
�"� �>�`=.a��`.: <-�= 625 1,487 139 139
�� �;�.
-�
�r
� i�`�p
zT�
. �a7� p�;e�r��-'.�F
:pr
' e��' :�C 4� z�.'MiM�' �y Y�����w_ "y^'je, :4 ±:°'.�[, $.
n�x a�
2010
metered unmetered
�-r" �t�f
a� °�a� 52 18 12,801 4,480
��,�- � ::�� � 200 400 1,202 1,202
':�.� , $:-'� 675 675 120 120
��� ��
H,.. �.
�,,�S� z:
= e;�•• �. .
:�< � '��
Kennedy/Jenks Consultants
2020
I� metered unmetered
� � <;<;#��
'. ':'�;:-�': 216 76 13,580 4,753
��� °�� � ���� 330 660 1,202 1,202
g�:� �r'�" ���° 775 775 120 120
.`'A w �`'�'
�w..<�3a.�'� �.`Y:;:
' 9 a. '',_
&' ��{i.. `�'�)�:
.�<f� �F
>�� �a.
T
.� �����'g '�
__!�'. .. • x:'S^^£� �y •• y��; �Y.�. .:_��.��� -� . . �.
2025
metered unmetered
.�C �t�f i�
;��_�,y� 216 76 13,580 4,753
���-�:z�4.-; � - � 330 660 1,202 1,202
. �y.� ��,:�.::.� 775 775 120 120
.i�% " �:,�, �3°•�>_
,,fl��.
='�%..,
., �
, �.�r,�r�5 ��.
:}
�.�:� s. '�-�"�'� -3�� � �`
2030 -opt
metered unmetered
;���.� �yr� F:=�., ..�:� ��_, -
��,. :;�-��-F° 216 76 13,580 4,753 ,
°;�k g=�:a���z^ �-< � �'�.�," 330 660 1,202 1,202 '�
,;,a,M�-g�- -:x;. ; 775 775 120 120
�a��x; ��
�. ���:.�;, �::
�. �,
�
�:
�� �..
. -e'A;: ,� �.
�- "'>:� ��=', .;�,;,��.•:,3 h ' '��:'�. � �i<.- � .�`��. "~� '� �
Final STPUD UWMP Update Page 3-6
g:brojects�200610695012-soutl�tahoe uwmp4eport\finalWwmp report-v3.doc
Kennedy/Jenks Consultants
The District is not a wholesaler and does not sell water to other agencies. The District sold 0 AF
in 2005 and does not anticipate selling water through 2030.
3.4 Water Demands
3.4.1 Current Demands
� Water demands for the period 2000 to 2005 are presented in Table 3-4. According to District
� Water Division staff, total water sold in 2000 was 7,730 acre-feet(AF). District water demand in
2005 was 6,921 AF—over 800 AF less than 2000. Single family and multi-family residential
customers accounted for 77 percent of water demands (5,295 AF) in 2005. Commercial and
other customers accounted for 23 percent of water demands (1,626 AF) in 2005.
Water demand is a function of several factors. Geographic location, topography, land use,
demography and water system characteristics (i.e., system pressures, water quality and
metering of connections) all influence water usage. Water demand characteristics within the
District will therefore differ from water demands of other areas in California according to these
factors of influence.
Reasons for differences in water demand between local communities can be numerous and
complex. Differences in per capita demand are primarily attributable to variations in outdoor
demands (Vickers, 2000). Other factors may include, but are not limited to, the following: parcel
size, housing density, house age, condition of plumbing, use of water conservation fixtures,
conservation practices, land use, climate, water rates, local ordinances, record keeping,
statistical anomalies, etc.
The DistricYs utility billing system has limited capability to develop water demand information
that is essential for long-term planning (i.e., summarizing accounts and demands by land use
classification and meter size). This is primarily due to the majority of accounts (95 percent)
being unmetered. Currently, 801 accounts are both metered and billed on volume-based rates.
The District has a few accounts that are metered, but billed based on flat rate.
3.4.2 Unaccounted-For Water
In addition to the traditional demand sources, another component that significantly impacts the
DistricYs water resources is water system losses (also known as "unaccounted-for water"). This
component is typically defined as the difference between water production and water sales.
These water losses can be due to authorized activities such as fire fighting and main flushing. ��
In addition, water losses may be due to unauthorized sources such as leakage, illegal '
connections, theft, and inaccurate flow meters. Unauthorized unaccounted-for water within the
District was approximately 8 to 12 percent in 2000. It is anticipated that the District will have
approximately 10 percent unaccounted-for water for the period 2010 to 2030.
This average unaccounted-for water value is higher than most water agencies. Estimates from
USEPA Region 9, indicate an average of 6.4 percent total unaccounted-for water. California
Department of Water Resources, Office of Water Conservation uses 9.5 percent for long-range
planning of municipal water production. The District should consider additional measures to
reduce the unauthorized component of the unaccounted-for water. These measures may
Final STPUD UWMP Update Page 3-7
g:lprqeds12006a695012-south�ahoe uwmD4eport\finalWwmp report-v3.doc
Kennedy/Jenks Consultants
include additional water main replacement, meter replacemenUexchange, water system audits,
and metered use by contractors (see Section 6 for additional details).
3.4.3 Future Water Demands
Projected water use estimates are based on the small increases to the DistricYs customer base
and the trend of increased residential landscaping. Projected water demands in 5-year
increments through 2030 are summarized in Table 3-4. Total estimated water demands witl be
approximately 7,600 AFY in 2010, 8,000 AFY in 2015, and 8,400 AFY for the period 2020 to
2030. The District anticipates that buildout will occur in 2020, thus water demands are not
anticipated to significantly increase beyond this date.
Single-family and multi-family residential customers will continue to account for the highest
water demand through 2030. Single-family and multi-family residential accounts were estimated
to use an average of 0.35 AFY/account. Large multi-family residential accounts were estimated
to use an average of 2.0 AFY/account. Small multi-family residential accounts were estimated
to use an average of 1.0 AFY/account. Commercial accounts were estimated to use an
average of 1.0 AFY/account.
3.5 Current Water Resources
During the review of this Plan, two recurring themes will become apparent. First, the challenges
of the District to meet its water demand obligations in recent years fall into the water quality
category not the water quantity category. The service area is �ocated in a wonderfully water-rich
region of the state that is only minimally affected by drought, but has been subject to water
supply contamination. Second, the District is located in an isolated area of the state in terms of
water supply. In fact, the District lies within a watershed which flows into Nevada, not California.
The District is over 100 miles east of the Central Valley and 6,200 feet elevation. As such, there
are no opportunities to import water from California's huge State or Federal water projects. The
District meets these challenges with sound, yet flexible planning practices and a water
conservation program tailored to its locale.
The Califomia-Nevada Interstate Compact Concerning Water of Lake Tahoe Truckee River '
Carson River. and Walker River Basins (Compact) approved in 1971 allocates a total annual
surface water and groundwater diversion of 23,000 AFY within the California side of the Lake
Tahoe Basin. In 1972 the California State Water Resources Control Board (SWRCB) adopted a
Policv for the Administration of Water Riqhts in the Lake Tahoe Basin established that all
surface water and groundwater diversions shall not exceed the allocations defined in the
Compact. In 1984 the SWRCB prepared a Draft Report titled, Policy for Water Allocation in the
Lake Tahoe Basin (Policy). This Policy was termed Draft since both the States of California and
Nevada were using the Compact for water allocations within the Lake Tahoe Basin. The
Compact has not been finalized. The Compact allocated a maximum of 23,000 acre feet for use
on the California side of the basin, however the Policy recommended that the allocation be split
between public (State and Federal) and private lands. The Policy allocated a maximum of
12,493 AFY for use within the District. The District owns a total maximum allocation of 9,528 AF
which is anticipated to be available through the planning period of this document(2030) and
beyond (see Table 3-5). It is highly unlikely this maximum allocation will be exceeded due to
Final STPUD UWMP Update Page 3-8
g:brajeds�2006b695012-south tahoe uwmp4eport\finalWwmp reporl-v3 doc
Kennedy/Jenks Consultants
strictly limited development, and less than 3,000 vacant parcels remaining in the DistricYs
service area. Minimum water supplies available during the 3-year period 2007-2010 will be
approximately 9,528 AF. See Appendix D, for additional details relating to these water
allocations.
TABLE 3-5
CURRENT AND PROJECTED WATER SUPPLIES (AFY)
. ':�.:.,,�;, �. , „;,.: �i�o;>�.,;:.: �, �� �.�,
.�-_S- . ���sy�" w;^t�. � '%:�. '� �"� :•Q.a :•• `�
:.< � :�'^ g_ i. y.: , Y%, t .r�.`� � �m���
_ S ; ' t\ � *`�s �4+�.. l � a.'ai � '!�
���;'�: „2AV�:�^,, ..f� C ' . .. .,� .gr- .
f xy'3?'s.. �a,�.�..
"SP
TotalSurfacelGrou�dwaterAllocations 9,528 9,528 9,528 9,528 9,528 9,528
����.� -� ;� P��$�::�T- - �h: � . � ��
✓ ya��"�F .s� `,�`i;ra,,;,„; 'a•" � ,� .Y.• �, ?�„'�.f Ty
r �';'-'
�.�� r�; ��,y.
3.5.1 Groundwater Resources
The water supplied by the District comes entirely from 20 active municipal wells that pump
groundwater from the South Lake Tahoe basin. These wells have a total nominal pumping
capacity of 15,833 gallons per minute (gpm) and 22.801 million gallons per day (gpd).
Table 3-6 provides a current status and pumping capacity of the DistricYs wells. This complex
water system is operated as 16 different pressure zones. These zones are served and supplied
from the water sources directly and from 16 booster pumping stations and 22 storage tanks.
The DistricYs total combined storage capacity is 9.9 million gallons (MG). The District meters
production from all groundwater sources
Groundwater has been developed in the DistricYs service area primarily from unconsolidated
sedimentary deposits (STPUD, 2000). Glacial deposits are predominant and include moraines
and outwash. Glacial oufinrash is more widespread in the District than moraines. The outwash
deposits are generally sand, gravel, and cobble layers that are interbedded with silt and clay
layers. The outwash deposits were produced by glacial melfinraters and streams that drained
moraines to the south. Later, glacial outwash deposits in some areas were eroded and '�,
replaced with stream channel deposits.
Lake bed (lacustrine) deposits in the District are primarily interbedded fine sand, silt, and clay
layers with some interbedded coarse-grained deposits (STPUD, 2000). These lake-bed
deposits were deposited during high lake levels, and have been partly preserved along the
Upper Truckee River and Trout Creek stream courses. Lake-bed deposits below an elevation of
6,280 feet in and near the District have been referred to as "recent lake-bed deposits".
Hardrock(also known as crystalline rock) include granitic, metamorphic, and volcanic rocks
(STPUD, 2000). Granitic rocks crop out over a large area east of the District, and most District
wells that have encountered hardrock are located in the eastern part of the DistricYs service
area.
Final STPUD UWMP Update Page 3-9
g:brqeds�Z006a695012-souM tzhoe uwmptrepal\finalWwmP report-v3 doc
(
i
I
I
Kennedy/Jenks Consultants
District aquifer tests indicated transmissivities that generally range from approximately
1,200 gallons per day per foot(gpd/ft)at the Black Rock wells to over 70,000 gpd/ft in the area
surrounding the Bayview Well. Hydraulic conductivities typically range from 149 gallons per day
per square foot(gpd/ft2) at the Black Rock wells to more than 500 gpd/ftZ in the area of the
Bakersfield Well.
TABLE 3-6
ACTIVE GROUNDWATER RESOURCES
Capacity Max. Production
Well Name Status (gallons/min.) (MG/day) Comments
Airport Standby 502 0.723 As > MCL
AI Tahoe No. 2 Active 2,500 3.600
Arrowhead No. 3 Active 800 1.152 Treating for MTBE
removal, As > MCL
Bakersfield Active 1,500 2.160 Treating for MTBE
removal
Bayview Active 3,600 5.184
Blackrock No. 2 Active 90 0.130 MTBE threatened
Chris Ave. Active 117 0.169
Clement Active 180 0.260 MTBE threatened
College Standby a 0 0 Uranium >MCL
Elks Club No. 2 Active 300 0.432
Glenwood No. 5 Active 1,000 1.440
Helen Ave. No. 2 Active 260 0.374 MTBE threatened
Industrial No. 2 Active 110 0.158
Mountain View Active 150 0.216
Paloma Active 2,500 3.600 MTBE threatened
South Upper Active 406 0.585
Truckee No. 1
South Upper Under 0 0
Truckee No. 3 Construction�b� I
Sunset Active 594 0.855 '
Tata No. 1 Active 308 0.444 MTBE contamination,
As > MCL
Tata No. 2 Active 73 0.105 MTBE contamination
Tata No. 3 Active 168 0.242 MTBE contamination
Valhalla Active 675 0.972
TOTALS 15,833 22.801
Notes: Source-STPUD Water Operations.
(a) Operated only for short-term emergencies of 5 consecutive days and for less than 15 days per year;source
capacity of this source is 1,100 gpm(1.584 MGD).
(b) Anticipated to start operation in 2008;estimate source capacity is 1,400 gpm(2.016 MGD).
The District pumped an average of 7,650 AF per year from 2000 to 2004 (see Table 3-7), 6,921
AF in 2005, and 7,445 AF in 2006. Based on projected demands (see Table 3-4) groundwater
Final STPUD UWMP Update Page 3-10
g:lprojects12006a695012-sauM lahoe uwmplreporllfinalWwmp report-v3.doc
I�
Kennedy/Jenks Consultants
extractions will be approximately 7,600 AFY in 2010, 8,000 AF in 2015, and 8,400 from 2020 to
2030 (see Table 3-7 for details). In Table 3-7, the percent of total water supply refers to the
percent of groundwater pumped compared to the total amount of water supply allocations
including surface water and groundwater sources. It is anticipated that groundwater e�ctractions
will consume 80 to 88 percent of the District's total water supply allocations to meet 2010 to
2030 water demands. Currently, groundwater extractions comprise 100 percent of the DistricYs
potable water resources.
TABLE 3-7
HISTORICAL AND PROJECTED GROUNDWATER PUMPED (AFY)
�.�:� �r
�. :��. ;� :�
Tahoe Valle South 6-5.01 7,730 8,079 7,833 7,100 7,506
: �;, ' 100.00% 100.00% 100.00% 100.00% 100.00%
. .�w.. �. �_ :
;E: �.a ��:; .�a.� �:: �:
��:
Tahoe Valle South 6-5.01 7,585 7,955 8,344 8,344 8,344
'�x ;.'�: �; y���,. rW�'� ,�;� �_=:
3.5.2 Surface Water Resources
Historically, the District diverted surface water from Cold Creek under a claim and permit of right
for up to 2,718 AFY(STPUD, 2000). However, the Cold Creek source has not been used since
1991 due to issues with compliance with the Federal Safe Drinking Water Act and potential
water quality problems with the surface water source. The District also acquired diversion rights
to the Upper Truckee River and tributaries which total 4,424 AFY, however these rights have
never been utilized and may not be usable (STPUD, 2000). Future surface water resources are
discussed in Section 3.6.2. The District does not have an existing opportunity for development
of desalinated water.
3.5.3 Inconsistent Water Sources I,
3.5.3.1 MTBE '
In 1996, the fuel additive methyl tertiary butyl ether(MTBE)was detected in one of the DistricYs
wells. Since then, 13 previously active wells (33 percent of the DistricYs groundwater sources)
were shut down due to MTBE contamination or the threat of contamination, production was cut
by 50 percent for one well to avoid MTBE contamination, and startup was delayed on one new
well due to MTBE plumes. Table 3-8 lists the wells that are currently inactive due to MTBE
contamination. Loss of these wells results in a reduction of 3,681 gpm and 5.304 million gallons
per day.
Addressing the challenges that MTBE contamination has caused the District has been
enormous in scope. The District completed a comprehensive Master Plan Update, MTBE Water
�stem Impacts and Mitigation Evaluation September 2000 (STPUD, 2000)addressing the
restoration of water production lost to MTBE contamination. Options studied included
Final STPUD UWMP Update Page 3-11
g:lprqecls1200610695012-south lahoe uwmp4epallfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
constructing new wells, securing surface water rights, purchasing water, rehabilitating its wells,
conserving water, and installing treatment facilities to remove MTBE from District wells.
Gasoline/MTBE leaks from South Lake Tahoe area gas station tanks travels easily through
porous granitic soil into groundwater supplies. MTBE is a suspected carcinogen and even at
low levels the chemical causes a foul taste and odor. The District has made enormous efforts to
combat this contaminant. First, the District lobbied legislators and government officials to ban
the use of MTBE as a fuel additive. The District was successful in enlisting the help of EI
Dorado County and the City of South Lake Tahoe to create a MTBE-free zone at South Lake
Tahoe that began April 1999. Next, the District changed operational criteria to meet water
demand, while at the same time it began to develop a plan to restore water production.
TABLE 3-8
PRODUCTION LOSS DUE TO MTBE CONTAMINATION
Capacity Max. Production
Well Name (gallons/min) (MG/day)
Arrowhead No. 1 a 170 0.245
Arrowhead No. 2 a 630 0.908
Blackrock No. 1 38 0.055
Blackrock No. 2 ° 127 0.183
Clement ° 180 0.260
Country Club 145 0.209
Helen No. 1 a 112 0.161
JUlle a 205 0.295
Paloma 1,250 1.800
SOuth Y a 200 0.288
Tata No. 1 ° 308 0.444
Tata No. 2 ° 73 0.106 I
Tata No. 3 ° 168 0.242 �,
Tata No. 4 a 75 0.108 '
TOTALS 3,681 5.304 ,
Notes: Source-STPUD Water Operations.
(a) Destroyed
(b) Removed from service,converted to monitoring well.
(c)STPUD MTBE Policy to not supply drinking water containing MTBE if alternatives exist.
(d) Portion of the Paloma well production is reduced due to the MTBE contamination.
The District recommended treating the MTBE contaminated wells (STPUD, 2000). Since 1998
the District has drilled 6 wells including Arrowhead No. 3, Valhalla, Glenwood No. 5, Elks Club
No. 2, Bayview, and South Upper Truckee No. 3. Arrowhead No. 3 requires treatment for
MTBE removal (using advanced oxidation- hydrogen peroxide/ozone) and provides up to
800 gpm. The District added the Valhalla Well, drilled to only temporarily meet the loss of water
due to MTBE contamination, and the Bayview Well in 2006 which provides up to 3,600 gpm.
The Bakersfield Well MTBE treatment system started in 2004 and provides up to 1,500 gpm.
Final STPUD UWMP Update Page 3-12
9:lprajecls�200610695012-south tahoe uwmptreporl\finalWwmp repat-v3.doc
Kennedy/Jenks Consultants
The District began drilling additional test wells to site new production wells. Unfortunately, the
District has had limited success due to following: natural occurring contaminants such as
arsenic, manganese, and iron; and low production potential.
In November 1998 the District filed a lawsuit against oil companies and gasoline retailers
seeking compensation for damage to its water supply.
On April 15, 1999 the District Board of Directors (Board) adopted an MTBE Policy that prohibits
the delivery of drinking water containing detectable concentrations of MTBE except in strictly
limited circumstances. The last paragraph of the MTBE Policy states: "Staff will prepare a
contingency plan to establish the priority for the utilization of wells placed on standby status
because of MTBE. The contingency plan shall ensure that only wells with the lowest
concentrations, if any, of MTBE are activated to meet emergency needs." See Appendix E for
further details.
On May 6, 1999 the DistricYs Board of Directors adopted a Water Shortage Operations
Contingency Plan to minimize the possibility of operating wells with low levels of MTBE
contamination. Extreme operational and water conservation measures were approved, if
necessary, before a decision would be made to use MTBE tainted wells or aquifers, while still
complying with all state and federal laws for drinking water quality. The Water Shortage
Operations Contingency Plan employed the DistricYs staged water conservation provisions to
achieve a drastic decrease in demand, if necessary. See Appendix F for further details.
During 2000, the District obtained a temporary emergency water supply standby source for its
Gardner Mountain pressure zone from the Lukins Brothers Water Company. However, the
District has not used this emergency source.
3.5.3.2 Production Loss due to Aging Wells
Some older wells have lost production over the past decade due to plugged screens caused by
corrosion and sediments. Glenwood Wells Nos. 1 to 4 were destroyed and replaced with one
well on the same site. Martin Well will not likely be redrilled due to water quality issues with
manganese. Mountain View Well will not likely be redrilled due to water quality issues with
arsenic. South Upper Truckee Well No. 1 was converted to a monitoring well and Well No. 2
was destroyed. South Upper Truckee Well No. 3 will likely go online in 2008 with corrosion
treatment.
3.5.3.3 Mitigation of Inconsistent Water Supply Sources '
In the STPUD MTBE Evaluation (2000), three basic options were considered to restore the
DistricYs water supply. First, the District could attempt to obtain new water supplies by securing
surface water supplies, installing new wells, or purchasing water from a third party. Second, the
District could attempt to use its remaining water resources in a more effective way by
rehabilitating its wells, conserving water, or using similar strategies. Third, the District could
install treatment facilities to remove MTBE from District wells. The District determined that
treatment is the only viable option. Details regarding MTBE treatment are included in the
DistricYs MTBE Evaluation (2000).
Final STPUD UWMP Update Page 3-13
g:arojecls�2006'4695012-sauU tahoe uwmpYepallfinalWwmp report-v3 doc
Kennedy/Jenks Consultants
To accommodate future growth demands of the water system, finro new welis are proposed to
'� be sited in areas with no known MTBE groundwater threats. New pipelines, emergency power
� facilities, and other appurtenances are also needed to convey newly developed water to the
various pressure zones where the water was lost.
The District has moved forward with wellhead treatment to remove MTBE from District wells.
Installation of an advanced oxidation well treatment at Arrowhead Well No. 3 was completed in
2002. The treatment option offers the additional advantage of mitigating MTBE impacts on the
aquifer the District has used to supply water to its customers. By extracting and treating large
volumes of drinking water, the District may gradually reduce MTBE concentrations in the aquifer
and reduce the likelihood of future impacts on down-gradient wells. If the District were to
abandon the MTBE-impacted/threatened wells, it may permanently lose a very significant
portion of the available groundwater aquifer system for the South Lake Tahoe area.
3.5.4 Water Quality of Existing Water Resources
Water produced by the District achieved all USEPA and California drinking water standards
according to the DistricYs 2005 Consumer Confidence Report. The District did not violate any
water quality standard. A copy of the District's 2005 Annual Consumer Confidence Report is
provided in Appendix G.
New regulations for arsenic, uranium/radon, and other volatile chemicals also require careful
consideration. Two of the District wells will be impacted and require treatment or removal if the
state arsenic maximum contaminate level is set at 10 ppb; seven wells will require treatment if
the standard is set at 5 ppb. Two wells exceed the current uranium standard of 20 pCi/L and
may eventually also require treatment if they are to be used.
Section 3.5.2 summarized the DistricYs efforts to eliminate the contaminant MTBE from
groundwater supplies.
3.6 Future Water Resources
There are several alternatives that the District may consider for increasing future water
resources including: add groundwater resources, use surface water rights, transfer or exchange
of water rights, use of recycled water, and supporting water demand management programs I
(this altemative is summarized in Section 6). Implemented over time, these programs are '
expected to provide the District with sufficient supplies to meet future water demands. The
following sections summarize future water supply programs that could be used to increase the
District's potable water supplies.
3.6.1 Groundwater Resources
The Compact allocated a maximum of 23,000 acre feet for use on the California side of the
basin, however the Policy recommended that the allocation be split between public (State and
Federal) and private lands. The Policy allocated a maximum of 12,493 AFY for use within the
District. The District owns a total maximum allocation of 9,528 AF which is anticipated to be
available through the planning period of this document(2030) and beyond (see Table 3-5).
Final STPUD UWMP Update Page 3-14
9lprojec�s�2006`0695072-soulh tahoe uwmpYepartlfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
The District assessed drilling new wells in the MTBE Evaluation (2000)which recommended six
additional wells, nearly 52,000 lineal feet of new waterline, 8 pressure reducing stations, and
auxiliary power at each new well. Selected new wells may require additional treatment for
I', MTBE or other contaminants (arsenic, manganese, uranium, etc.) prior to discharge into the
distribution system (STPUD, 2000). Since the MTBE problem began, the District has drilled
several new wells including Arrowhead No. 3, Glenwood No. 5, Elks Club No. 2, Bayview, South
Upper Truckee No. 3, and Valhalla. Arrowhead Well No. 3 requires treatment for MTBE
removal (using advanced oxidation - hydrogen peroxide/ozone) and provides up to 800 gpm
(640 AF at 50 percent of maximum day production) starting in 2007. Bakersfield Well includes
MTBE treatment and provides up to 1,500 gpm. Valhalla Well (up to 675 gpm)was drilled to
partially replace the loss of water due to MTBE contamination. The Bayview Well will start
production in 2007 (up to 3,600 gpm, 2,900 AF at 50 percent of maximum), and the South
Upper Truckee Well No. 3 (up to 1,400 gpm) is anticipated to start operation in 2008.
The District began drilling additional test wells to site new production wells. Unfortunately, the
District has had limited success due to following: natural occurring contaminants such as
arsenic, manganese, and iron; and low production potential.
The primary goals of this well replacement effort have been to restore the District's pressure
zones to their original source capacities and to maintain the same reliability of supply as
compared with the period prior to the MTBE contamination. In addition, the District retired other
wells for lost production due to plugged screens caused by corrosion and sediments. These
replacement wells significantly reduce the available sites needed to accommodate future
demand increases and/or solve future water quality issues.
3.6.2 Surface Water Rights
Historically, the District diverted surface water from Cold Creek under a claim and permit of right
for up to 2,718 AFY (STPUD, 2000). However, the Cold Creek source has not been used since
1991 due to issues with compliance with the Federal Safe Drinking Water Act and potential
water quality problems with the surface water source. The District may transfer such rights to
Lake Tahoe, after the Truckee River Operating Agreement(TROA) is completed sometime in
the future.
The District also acquired diversion rights to the Upper Truckee River and tributaries which total �
4,424 AFY, however these rights have never been utilized and may not be usable (STPUD, ',
2000). In addition, the District has filed several applications for additional water rights on Lake
Tahoe with the SWRCB which total 12,100 AFY. These applications are pending review and
approval, thus the District has not extracted water from Lake Tahoe via these potential water
rights.
Thus, the District owns, acquired, and has pending applications for approximately 19,242 AFY
of surface water rights. However, availability of stream flow at points of diversion, particularly
during summer months, and water quality considerations may restrict the surface water options.
These factors must be considered along with water rights legal issues in evaluating whether to
utilize surface water to supplement and/or replace groundwater production.
For the purposes of this UWMP, the District will not include the existing or pending surface
water rights in the projections of future water resources. However, this does not restrict the
Final STPUD UWMP Update Page 3-15
g:lprojecls12006b695012-south tahoe uwmp4epatlfinalWwmP report-v3.doc
Kennedy/Jenks Consultants
DistricYs efforts to pursue additional water resources to supplement existing groundwater
production. The District does not have a future opportunity for development of desalinated
� water.
�I
� 3.6.3 Transfer or Exchange Opportunities
There are four potential water purveyors borde�ing the DistricYs water system that could be
considered potential sellers of water. The DistricYs system is interconnected (emergency
intertie)with all four neighboring domestic water utilities including: Lukins Brothers Water
System; Tahoe Keys Water System, Edgewood Water Company, and Lakeside Park Mutual
Water Company. While there have been opportunities in the past for transferring emergency
water through these interties, there are only two small resale meters through which Tahoe Keys
Water buys a minimal amount of water from the District on an ongoing/as needed basis.
The District thoroughly evaluated the opportunities for water purchase during the MTBE
Evaluation (2000). In fact, during May 2000, the District executed a wholesale agreement with
the Lukins Brothers Water Company to temporarily overcome MTBE-related water quality
problems by purchasing water through existing emergency interconnections for a fixed term for
a fixed amount of compensation. However, purchasing water, except as interim or emergency
supplies is not a viable option to mitigate the MTBE problems or other supply deficiencies on a
long-term basis and has not been used. Potential water purchase sources and major issues are
summarized in Table 3-9.
The STPUD MTBE Evaluation (2000) recommended only using the water purchase option as an
interim water supply mitigation measure. For the purposes of this UWMP, the District will not
include water purchases in the projections of future water resources. However, this does not
restrict the DistricYs efforts to pursue additional water resources to supplement existing
groundwater production.
Final STPUD UWMP Update Page 3-16
g:�yrojeds1200fi`4695012-south�ahoe uwmp4epaflfinalWwmP reporl-v3 doc
Kennedy/Jenks Consultants
TABLE 3-9
WATER PURCHASE EVALUATION
'� Potential Water Source Major Reasons
i
Edgewood Water Company • Treated lake water may contain low levels of MTBE.
• Inadequate surface water treatment to meet State of California
requirements.
• Edgewood Water wishes to keep their excess water rights for
their own future growth needs.
• Water purchase would not restore the reliability of the DistricYs
specific pressure zones that it had before MTBE impacts.
Lakeside Park Mutual Water • Insu�cient capacity in their surface water treatment plant to
Company supply treated lake water.
• Lakeside Mutual desires to keep their excess surface water
rights for future growth. They do no want to sell/lease raw
lake water rights. This may be negotiable but would involve
limited amounts of water. Their peak demands will always
occur during the summer season too.
• Water purchase would not restore the reliability of the District's
specific pressure zone that it had before MTBE impacts.
Lukins Brothers Water • Several of Lukins'wells are threatened by MTBE, therefore
Company impacting the reliability of the supply.
• Existing excess well capacity is too small to solve the MTBE
impacts for the DistricYs adjacent pressure zone.
• Extensive water system/pipeline improvements would be
necessary to mitigate the total loss of water in the effected
pressure zone.
• Additional pumping facilities would need to be installed to
adequately supply the DistricYs effected pressure zone
• Water service would not restore the reliability of the DistricYs
specific pressure zones that it had before MTBE impacts.
Final STPUD UWMP Update Page 3-17
g:brojeds1200610695012-south tahoe uwmp4eporl\finalWwmp report-v3.doc
Kennedy/Jenks Consultants
I; Potential Water Source Major Reasons
,
� Tahoe Keys Mutual Water • Unwilling to sell any of their excess groundwater.
'i Company • Selling water might adversely impact their mutual water
i company status.
• Increasing the pressure in their aging water system may
cause pipeline leaks.
• Tahoe Keys Water does not want to chlorinate their wells to
supply the District with chlorinated water.
• Water service would not restore the reliability of the DistricYs
specific pressure zone that it had before MTBE impacts.
• The consumers of the mutual water company may become
concerning having their water system connected to the
DistricYs water system since there are MTBE problems that
may impact them by a backflow condition.
Source: STPUD 2000
3.6.4 Recycled Water
Since 1968 the District has detivered its high quality treated effluent through a 26 mile export
system, over 7,400 ft. Luther Pass (a lift of 1,200 ft.), to Alpine County. The recycled water is
stored during the winter months in 3,800 acre foot Harvey Place Reservoir and distributed to six
ranches for irrigation purposes in the dry summer months. Total wastewater effluent flow for the
year 2005 was 4,916 AF, which produced 4,593 AF of recycled water(see Table 4-1 for details).
According to the District, recycled water will increase to approximately 5,000 AF by 2015.
Additional details are provided in Section 4.
The existing ranches require almost all of the recycled water the District currently imports to
Alpine County. However, as the volume of recycled water increases over the next 20 years and
the available irrigated lands diminish due to development; additional users may be required to
dispose of the annual production of the South Lake Tahoe VWVfP. Keeping with the adopted
guiding principles, excess recycled water will first be fully utilized in Alpine County and only
excess resources be conveyed to Nevada irrigators.
For the purposes of this UWMP, the District will not include potential use of recycled water
within the District jurisdiction in the projections of future water resources. However, this does
not restrict the DistricYs efforts to pursue additional water resources to supplement existing
groundwater production. '
3.7 Reliability Planning
The Urban Water Management Planning Act requires urban water suppliers to assess water
supply reliability and vulnerability to seasonal and climatic shortage. Reliability is a measure of
a water service system's anticipated success in managing water shortages. This assessment
must include a comparison of the total projected water demand with the supply availab�e for the
following conditions: (1) normal/average water year, (2) single dry water year, and (3)three
consecutive dry years.
Final STPUD UWMP Update Page 3-18
g�brojecls�100610695012-south tahoe uwmp4epat\finalWwmp report-v3.doc
Kennedy/Jenks Consultants
Costs of demand management or suppiy augmentation options to reduce the frequency and
severity of shortages are now high enough that planners must look more carefully at the costs of
unreliability to make the best possible estimate of the net benefit of taking specific actions,
hence the term "reliability planning." To plan for long-term water supply reliability, planners
examine an increasingly wide array of supply augmentation and demand reduction options to
determine the best courses of action for meeting water service needs. Such options are
generally evaluated using the water senrice reliability planning approach. Reliability planning
requires information about the following: (1) expected frequency and severity of shortages;
(2) how additional water management measures are likely to affect the frequency and severity
of shortages; (3) how available contingency measures can reduce the impact of shortages when
they occur.
In compliance with the Urban Water Management Planning Act an assessment was developed
to determine the District's water supply reliability. This assessment includes a comparison of
the total projected water demand with the water supplies available for the following conditions:
(1) normal/average water year, (2) single dry water year, and (3)three consecutive dry years.
Results for the assessment for each of these three conditions are described below. In addition,
the District is required to assess water supply and demands over the next 20 years in 5-year
increments.
Unlike the majority of California's water retailers, the DistricYs water supply volumes simply are
not affected by single or multiple dry water years. The wells that serve as the water supply are
very literally supported by Lake Tahoe, the largest alpine lake in North America. A recent
groundwater study confirms this. With a depth of 1,646 feet, surface area of 191 square miles,
Lake Tahoe contains about 39.8 trillion gallons of water. Despite the lake level dropping 10 feet
during the last prolonged drought of 1985-1991, the static water level decline observed in
District wells was less than 4 feet and observed in only a few wells.
3.7.1 Normal Water Year Assessment
The District selected 2005 as the normal year assessment. Table 3-10 summarizes the
reliability assessment of normal water year supplies and demands. Groundwater is anticipated
to be the primary water resource through 2030. This assessment indicates that the District
would have net surplus of 1,943 AF in 2010, and continue to have a net surplus through 2030
(1,184 AF). See Table 3-10 for additional details. Thus, no deficit was observed during the
assessment of normal water year supplies and demands.
Final STPUD UWMP Update Page 3-19
glprojecls12006b695012-souM tahoe uwmp4eporl\finalWwmp repat-v3,doc
Kennedy/Jenks Consultants
TABLE 3-10
PROJECTED NORMAL WATER YEAR SUPPLY AND DEMAND
�`� :��::'m,��$;�: ,•,��� '_y" <
` -�t5�''e�.'a
��� °R>r �&� S^^Y.. '`�.���ts "�i.F:�.�', ��' ,C;
.�°' "ff::'��, '¢•`�rt���� �£(
a� �'x'"?.'.:3}�'�r,, s ..��.t,'^.' i.S tt � ��B
�,II ,�:• `� o}
I • � � �� � �'v`.�.,� ' .. a��',;; �Y: 3
$ ���3 �ch:: z `y.'a: :�,�'J�� .i�'� ,£�",.'S,�� $
�' .:„ &'., � s
_.3. `°"d"�,'iE., ���n,° ,• j w.y YY -� 1;��`•• _ �" );�' a •�S - �a
_. ___ . i : a^"�' r ��� �� ...r'�: Ci ��� a�, i°�.N .
�SMz-�e'd• �"q �°b• " ` y�, �' '.g �& �a` '� 'T'.
:i":€' ;�,,��y.?�;�;$�. x�. `.�F�,,, -z . :� , � ;��` Z�;' z', i���
��' � �A� �,�.�.x�` •'��; "�'�, 3, '.� �� '�' .�
. i a: :g� *'.�?�:�&" z t4a. �- ,r'<
�.
3.7.2 Single Dry Water Year Assessment
The District selected 2000 as the single dry water year assessment. Table 3-11 summarizes
the reliability assessment of single dry water year supplies and demands. Groundwater is
anticipated to be the primary water resource through 2030. This assessment indicates that the
District would have net surplus of 1,943 AF in 2010, and continue to have a net surplus through
2030 (1,184 AF). See Table 3-11 for additional details. Thus, no deficit was observed during
the single dry water year assessment of supplies and demands.
TABLE 3-11
PROJECTED SINGLE DRY WATER YEAR SUPPLY AND DEMAND
, � �3 �; . s:: �
:,�,
. . �... m ,: ;� .,rv
. c• '. v: ,�. a� �,g::, k
;� ,f;�<. :�.:.
� r:: .�<::
, ,
�:�=w �.°%::`� "�:�`" �:�t=�� M��
��ar =� ;�,µ,� . ;," ';;;�;, :; � .x�ry.=
-���� _�:. ��" :,�� _� ��:�°.
q�X`: � '\e ,.��.�., ���> ,^ �. �,.
: �( ,� ��.
p�g Y � 'i�',t � a`iY.S:# `�"'"'� � �R,.:
.k .4� s.a�p.p.. .��� �
,A�� y ;:5� � '�_ �•�°�, `, y� b" °:. $'"- �,,P.A�
1�� p� , s e `£:,z � } „ , i �� �2 �
� i<4' } �•°`• w.;• �� X 3�, >-a:K z� i
3.7.3 Multiple Dry Water Year Assessment
The District selected 2000 to 2002 as the multiple dry water year assessment. This period
represents a recent multiple dry year period. Groundwater is anticipated to the primary water
resource through 2030.
Final STPUD UWMP Update Page 3-20
g��yrajecls\ZOO6b695012-sauth tahoe uwmplrepaAlfinalWwmp reporl-v3 doc
Kennedy/Jenks Consultants
Table 3-12 summarizes the reliability assessment of multiple dry water year supplies and
demands for the period 2006 to 2010. This assessment indicates that the District would have
net surplus of 1,943 AF in 2010. See Table 3-12 for additional details. Thus, no deficit was
observed during the multiple dry water year assessment of supplies and demands.
TABLE 3-12
PROJECTED MULTIPLE DRY WATER YEAR SUPPLY AND DEMAND FOR 2006-2010
,:,� �. ; -u::
-�... ��;;�,�� �x �, ;�_ >.h.�. (�: e�a
y ,,���, „�� �; �;;,F ��;F
���e,��'� ; ?4:A� �,- '��+ ,t f
tM,. .
ni�;R;� �• W:,k�'•:� ='a�:° �`"l�Y^;,
'��., r
��
't.
. n
.�.�� _,�..
^I t �
<�
��^t.��. An.�,
`�� �a'
:,... C`<. x . _ .V?y�i+tl ' «e� �
y�� 4��x �t
e��',��' eR'�T:� �� M� �/ ^�h '�P� � c�'T.,,,.
���5` grb f �3.A•
: yxh a ",� .�.8' .�'_��.. M"i
.ea M�' i.... �Y \ ,$•pn • y., ' _
+ yy`ryy�y�� 9 ! j
�Mri�it3fMM�.� 'g � \�° � 9� \ ..,p ��� ��a�
..};��e 'f nid 3:`� i �$� ' � .�b �? � � �j�
. •i�' '�Q� .�� 'Kt .(: ,C�
" • `�' .--:: :'ve�;� w : k ' �li �* :.:�" .���x ..
; '��- - -- ' ..� ` �'.� �, . �v^'
°� � ' � +s- �•� "�a�
s �� �i . � e�, y' '�e �; :r. .,
. ,. � . . •0 a "r >^'-:R'
Table 3-13 summarizes the reliability assessment of multiple dry water year supplies and
demands for the period 2011 to 2015. This assessment indicates that the District would have
net surplus of 1,573 AF in 2015. See Table 3-13 for additional details. Thus, no deficit was
observed during the multiple dry water year assessment of supplies and demands.
TABLE 3-13
PROJECTED MULTIPLE DRY WATER YEAR SUPPLY AND DEMAND FOR 2011-2015
� � ', �<��
. :;
.;_� . . -�w�.�� .;�;
,,,. .,;. ;: �� � ���e�,;,
�.�; �� . �"'�` ��� ��-'
�:
• M,.,�� �;a y ' ` s�:., �'�:
. ,�:: '�t.� :�, `��s� .
"+':,��, ;.ti; z,y.�' �..� - �� �� '�e'�f� ��M�",
� c+ ��"t
. . � k �Y � `�"�,, �,.: ,
'.�R^`�', • ' ':s'.�-��. ' az j�� ' • �F ' , r �x _:. '; ����.
����1� . �, � �� �f„ '�^ :Z �.�`� ��i ��
, ; ;�...
Table 3-14 summarizes the reliability assessment of multiple dry water year supplies and
demands for the period 2016 to 2020. This assessment indicates that the District would have
net surplus of 1,184 AF in 2020. See Table 3-14 for additional details. Thus, no deficit was
observed during the multiple dry water year assessment of supplies and demands.
Final STPUD UWMP Update Page 3-21
g.lprojects�2006b695012-south tahoe uwmP4epat\finalWwmP repat-v3.doc
Kennedy/Jenks Consultants
TABLE 3-14
PROJECTED MULTIPLE DRY WATER YEAR SUPPLY AND DEMAND FOR 2016-2020
, ,,epe - �. y( `� �:�_ •; "� :�y,, r;,-�, �� .
. .;.�ia.�-. '" ��5-` '��l� 'c.; �iir h�'
�"r`,' ca:: i
�` .,2,`�,�� �._.:`,�. .,. / . .
��[ :�.. �,
�Y��."��y?� .iJ„^e .. ,M ��:�. ee`e�`' ,�,y�.�` �
:�`^ . _- �'. .._ '� 6�"r . ,
� f. •°�4�> :5�` t�� 4�..•t 30 ">� �.' •��.F
�. r
�z. .�.. •..x"t.�� p ',� Fs,���p�`. "y'� '", �ch<. �.
9� � Y- ` ; �•y=4 . - t��./�,�::
q� i �'T
:ti �R:'"¢.: nb`
� �'r' ' �./ti.: ' . _ °. . 'p� :t . „q., r ,. _
�"V N�-.... �` ' �'�v
.,:;a�„ . ��„. .rt,� : �_
7 ; � f" ,«j�., `�" f
�`; ;� ��'e,�.n.Y'.� �� � ���� � � 4 � ���"i�
-c F �L� `y. _� 't'� �.'£y4 2��a-r; §..
3+ � �z•
g � � . ,,_ ���� .�S•e a5y., ., �,� - '� N � b:. . �"i�
��� ,�$.' �, � 1M>��► ��' �� '� � '��_ ��-� �
� „� %i Ir .F� ' :, t<fT• 4 . . :,9,+ � �K< •� 3. �� .
il e. ^ . ��;�n°.r� �.•,j,• ?Z✓
,I
�
Table 3-15 summarizes the reliability assessment of multiple dry water year supplies and
demands for the period 2021 to 2025. This assessment indicates that the District would have
net surplus of 1,184 AF in 2025. See Table 3-15 for additional details. Thus, no deficit was
observed during the multiple dry water year assessment of supplies and demands.
TABLE 3-15
PROJECTED MULTIPLE DRY WATER YEAR SUPPLY AND DEMAND FOR 2021-2025
£�" �� .;,,� �$�
F��<. ,..: ,..
z. ..�.;��;
�.:...;..
�>' . �
;��- , , ' ,��:' :.,V,;;<�• �,
. ..x W_t`:r.: y.��.
r':,s., •::�� �� '��:
, ,. • , ,
, �
. ... ,:.,; .:�;� .;�,
:��.x
�a, �.� ,�
,; '��' .. �:�� x.., _ '����
•�� �� � �--�� � � � � � r ���
`' 1�.4� � �, � ,��'a
.�:�, ��.; ..�. ��..
,�s� ��.
;.'��" k :��.�=: _� �� � ' T�� �
;.. ;��� �� i�.�a � "� ��
�s�;�:� y �%" �� � �,.
Final STPUD UWMP Update Page 3-22
g)projects1200G`0695012-south tahoe uwmp4eportlfinalWwmp reporl-v3,doc
Kennedy/Jenks Consultants
Section 4: Recycled Water
This section describes the DistricYs wastewater characteristics, flows, and treatment facilities.
In addition this Section evaluates the feasibility of recycled water use for landscape irrigation,
groundwater recharge with recycled water, and utilizing recycled water for agricultural irrigation.
4.1 Wastewater Treatment
From very modest beginnings in 1951 which included two 18,000 gallon redwood septic tanks,
the DistricYs wastewater collection/treatment/recycling processes have grown to a 7.7 MGD
advanced secondary operation serving 17,000 customers. The DistricYs award winning
collection system and wastewater treatment plant produces an average 4.5 MGD, 100 percent
of which is recycled. However, the Porter-Cologne Act requires that all wastewater be exported
out of the Tahoe basin watershed, leaving no opportunities for re-use within our service area
except for catastrophic fire suppression in a small limited area.
Table 4-1 includes a summary of historical wastewater collected and treated for 2000 and 2005,
4,845 AF and 4,916 AF, respectively. Table 4-1 also summarizes the projected wastewater
produced for 2010 (5,824 AF)to 2030 (6,384 AF) based on estimates from the Districts Draft
Recycled Water Master Plan (2003). See Table 4-1 for additional details.
TABLE 4-1
RECYCLED WATER PRODUCTION 2000-2030
' •���:� � ':� :��>:. �:�'� �'
EF
<�".
, �° °� 4,845 4,916 5,824 6,048 6,384 6,384 6,384
.�tl ' ,,'� :,� �
4,559 4,593 5,824 6,048 6,384 6,384 6,384
Since 1968 the District has delivered its high quality treated effluent through a 26 mile export
system, over 7,400 ft. Luther Pass (a lift of 1,200 ft.), to Alpine County. The recycled water is
stored during the winter months in 3,800 acre foot Harvey Place Reservoir and distributed to six
ranches for irrigation purposes in the dry summer months.
When the District first built the water reclamation facilities, Alpine County provided the most I
feasible disposal site and was the only area willing to take the water. In return for helping the
District, Alpine County and its 1,000 residents receive many benefits. The recycled water is
distributed all summer and fall. The ranches stay green, allowing for extra cuttings of hay. The
District pays an annual mitigation fee in excess of$100,000 to Alpine County and stocks local
fisheries.
4.2 Recycled Water Facilities
The recycled water facilities for the Districts operations include the South Lake Tahoe
Wastewater Treatment Plant(VWVfP), C-Line Export Pipeline, Harvey Place Reservoir(HPR),
Final STPUD UWMP Update Page 4-1
g�brajecls\2006�0695012-sou�h�ahoe uwmp4eport\finalWwmp repM-v3.doc
Kennedy/Jenks Consultants
Diamond Valley, Diamond Ditch, and contract land application sites. These facilities are all
essential for the functioning of the recycled water distribution system.
4.2.1 General System Description
The DistricYs C-Line Export Pipeline conveys recycled water from the top of Luther Pass to
Harvey Place Reservoir located to the south of Diamond Valley in Alpine County. The Diamond
Ditch carries water from HPR to irrigated lands in Wade Va�ley and along Hwy 88 west of the
West Fork of the Carson River. Several irrigation laterals distribute the recycled water
throughout the application areas, most notably the Upper and Lower Fredericksburg Ditches.
4.2.1.1 Harvey Place Reservoir
Harvey Place Reservoir, constructed in 1989, has a maximum capacity of approximately 3,800
acre-feet. This volume includes 3,000 acre-feet for recycled water storage and 800 acre-feet for
floodwater storage. There are also approximately 250 acre-feet of dead storage below the
outlet of the reservoir. The elevation of the primary spillway on Harvey Place Dam is
II approximately 5,563 feet above sea level, which corresponds to the maximum elevation water
will rise to during normal operation. The DistricYs normal operation is to fill the reservoir with
recycled water from 15 October to 1 April, without any discharge. After 1 April, the District
drains the reservoir to minimum pool before 15 October to allow for it to be filled again during
the winter. Harvey Place Reservoir provides seasonal storage for approximately 4,200 acre-
feet of recycled water. This exceeds the reservoir capacity of 3,800 acre feet but water is
released throughout the irrigation season while inflow continues
4.2.1.2 Diamond Ditch System
The Diamond Ditch system begins at the outlet works of the Hanrey Place Reservoir. The ditch
is a concrete lined trapezoidal channel that runs parallel to Diamond Valley Road then crosses
under the Diamond Valley Road and Indian Creek in a double barrel inverted siphon. The
siphon is located in Diamond Valley just upstream of a short narrow canyon that connects
Diamond Valley to the head of Dutch Valley. The capacity of the Diamond Ditch and inverted
siphon under Indian Creek, as reported in the DistricYs Operation and Maintenance Manual, is
40 cfs. However a hydraulic capacity analysis conducted in the spring of 2001 determined that
the existing Diamond Ditch operational capacity is approximately 25 cfs. A concrete lined
trapezoidal channel continues from the outlet of the siphon southwest towards Wade Valley. As
the channel crosses a saddle and enters Wade Valley it flows in a short rip-rap lined channel
section and then into a steep unlined section. At the base of the steep unlined channel, the
gradient flattens and recycled water is routed to a 36-inch HDPE pipeline approximately �
1,200 feet long. The pipeline discharges to another concrete lined trapezoidal channel in Wade
Valley that is approximately 1,000 feet long. From the end of the concrete lined channel, flow is
routed in an unlined channel for approximately 6,500 feet where it flows over the Snowshoe
Thompson#2 Ditch diversion structure.
From the Snowshoe Thompson#2 Ditch, the gradient increases and the ditch winds downhill to
the Upper Celio-On Farm Ditch diversion structure. At this diversion structure flow can either be
routed northward towards Diamond Valley Road in the unlined Diamond Ditch North or into a
30-inch RCP that conveys flows into the unlined On Farm Ditch system. Numerous irrigation
Final STPUD UWMP Update Page 4-2
' g:�projecls1200610695012-south tahoe uwmpYeportlfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
turnout structures and side channel spillways exist along the bank of the Diamond Ditch North in
Wade Valley.
The Diamond Ditch system continues from Wade Valley in a northerly direction, paralleling the
West Fork of the Carson River to Paynesville Bridge, where it crosses the West Fork through a
20-inch diameter steel pipe. The Diamond Ditch system irrigates the Bruns, Neddenriep, and
Gansberg fields. Blended water starts with the combining of the Diamond Ditch water and the
Fredericksburg Ditch water.
The jurisdiction and responsibility of the District ends at the terminus of the Diamond Ditch on
the west side of the Paynesville Bridge where the recycled water enters the Fredericksburg
system.
4.2.1.3 Dressler On-farm System
In conjunction with the construction of Harvey Place Reservoir in 1988 the District built the On-
farm emergency disposal faci�ity on lands north of Wade Valtey. This 400 acre facility was
designed to dispose of recycled water through miles of shallow infiltration ditches. This system
has been problematic since its development for a number of reasons. The most significant
reason for the facilities inefficiency is the poor soil conditions present at the site. The entire
; area is underlain by a deep caliche hardpan that prohibits infiltration and promotes sheet flow
runoff.
The second pressing issue limiting the usefulness of the facility is the extensive annual
maintenance required to preserve the capacity of the infiltration and delivery ditches. The loose
surface soils in the area are easily eroded into the infiltration ditches rendering them ineffective
in an emergency event.
Both of these operational issues are compounded by the facility location being six ditch miles
below HPR. This means that all six miles of the Diamond Ditch and the On-farm lateral must be
intact to utilize the facility. An investigation of the integrity, functionality and feasibility of the On-
farm facility was conducted by the DistricYs consultants. Based on location, soils
characteristics, regulatory compliance, required maintenance and ease of use it was
recommended that the District relocate their primary emergency impoundment facility to a
location closer to HPR and the C-line and in an area with suitable soils and topography.
4.3 Recycled Water Uses
Ranchers and STPUD have jointly benefited from the arrangement to distribute recycled water
to Alpine County. This section describes the current contract irrigators and future potential ,
irrigators. The parties receiving recycled water have changed since recycled water was first
provided to users in Alpine County in 1968.
4.3.1 Current Users
Use of recycled water in Alpine County as a source of irrigation is a valuable opportunity for
local ranchers and the District. The recycled water irrigation system is located in a watershed
that has very limited freshwater storage capacity. The lack of freshwater storage and the short
seasonal runoff period makes the value of recycled water stored in HPR higher than in most
Final STPUD UWMP Update Page 4-3
9lprojecls12006`(1695072-south tahoe uwmPtrepat�finalWwmp report-v3 doc
Kennedy/Jenks Consultants
areas because it can be used later in the irrigation season. Currently, the District does not have
any incentives to encourage recycled water use since 100 percent of the available water is
consumed by existing contracts.
South Tahoe Public Utility District currently has contracts with several local landowners for land
application of recycled water from Harvey Place Reservoir. Recycled water is applied directly to
pasture and alfalfa crops in Wade Valley located to the east of the West Fork of the Carson
River. The irrigation methods used are controlled flood irrigation, and center pivot sprinkler
irrigation. West of the river, recycled water is sometimes mixed with fresh water in the
Fredericksburg system prior to application on permitted lands.
Agriculture practices are confined to meadow and hay pastures with some alfalfa crops being
grown. Cattle are pastured for at least part of the year on recycled water application areas.
Portions of the pasturelands and alfalfa crops are cut for hay finro or three times during the
irrigation season. This requires the rotation of irrigation water to allow for the drying and bailing
of the hay. Horses, sheep, and other domestic livestock grazing make up the balance of the
agriculture uses. Each of the contract irrigator ranches has slightly different practices but all
generally conform to this use pattern.
4.3.1.1 Emergency Fire Suppression
Despite the prohibition of recycling within the DistricYs own service area, through a special
' legislative act in 2000, the District was able to install 6 fire hydrants along a short section of its
! export pipeline. These hydrants provide emergency fire suppression to a small residential
community (that does not have municipal water service) and the DistricYs critical wastewater
pumping station at the base of Luther Pass. The availability of recycled water in the event of a
catastrophic fire in this heavily forested area provides a level of security to the residents, the
District and the Lake Valley Fire Department. Four additional hydrants in Alpine County provide
similar fire protection as the export line makes its way to Harvey Place Reservoir.
4.3.2 Future Potential Users
The existing ranches require almost all of the recycled water the District currently imports to
Alpine County. However, as the volume of recycted water increases over the next 20 years and
the available irrigated lands diminish due to development, then additional users may be required
to dispose of the annual production of the South Lake Tahoe VWVTP. At that time, the District
may consider incentives to encourage additional recycled water use.
4.3.2.1 Potential Alpine County Users ,
Currently 1,883 acres of land are permitted by the Lahontan Regional Water Quality Control
Board to receive recycled water. Of the 1,883 permitted acres, roughly 75 percent(±1,530
acres) use recycled water for irrigation purposes. Recycled water is not currently applied to the
remaining 353 acres partially due to the lack of infrastructure to convey water to some areas or
the permitted acreage is non-pasture/agricultural land. Portions of the permitted 353 acres on
the Fredericksburg system, between the Fredericksburg Ditch and Fredericksburg Road in
Wade Valley and along the east side of the West Fork of the Carson River have the potential to
receive recycled water but additional infrastructure would need to be constructed.
Final STPUD UWMP Update Page 4-4
i g.lprojects12006a695012-south tahoe uwmp4epallfinalWwmP reporl-v3.doc
Kennedy/Jenks Consultants
Development in areas currently receiving recycled water will result in the loss of permitted land.
Therefore, additional lands would need to be permitted for the application of recycled water in
Alpine County. There are approximately 1,100 acres west of Fredericksburg Road not currently
in agricultural production that have the potential to receive recycled water with infrastructure
modifications. However it is anticipated that some of this land could be earmarked for residential
development due to location and property values.
4.3.2.2 Potential Nevada Users
Nevada irrigators downstream of Alpine County currently do not have access to sufficient
volumes of water to divert to irrigation in an average or below average rain year. Because of
this lack of reliable freshwater sources, Nevada irrigators perceive recycled water as a desired
commodity. Currently, the DistricYs recycled water is not permitted for land application in
Nevada. Permitting could be pursued through the Nevada Division of Environmental Protection
for Nevada irrigators to receive recycled water from Harvey Place Reservoir. Currently only a
secondary irrigator(tail water) user agreement is in place to administer waters from the Districts
system entering Nevada. The irrigators in California and Nevada recognize the inherent value
of the recycled water resource as a desirable commodity and are striving to maximize the usage
and efficiency in application of this resource.
In order to provide users in Nevada with recycled water, improvements and modifications to the
existing conveyance systems would also need to be perFormed. New conveyance systems
would also need to be constructed.
'��
4.4 Recycled Water Quantity
The District Wastewater Treatment Facility(VWVfF) treats wastewater from the South Lake
Tahoe area of EI Dorado County that is located south and east of Emerald Bay, including the
City of South Lake Tahoe.
The District treats wastewater from commercial properties, single-family residents, and multi-
family residential dwellings. Only flow quantities since 1997 were deemed accurate because of
errors in flow data before this time. The District is currently preparing a Draft Recycled Water
Master Plan (2003). This document will provide the District with a discussion of alternatives for
the recycled water program into the year 2020 and beyond.
Table 4-2 indicates that 2005 recycled water demand was 4,593 AF (STPUD, 2003) which was
510 AF less than projected in 2000. Table 4-2 also summarizes the projected recycled water
demand for 2010 (5,824 AF)to 2030 (3,384 AF) based on the District's Draft Recycled Water
Master Plan (2003). Table 4-2 also indicates that 100 percent of current and projected recycled
water demand is applied to agriculture.
Final STPUD UWMP Update Page 4-5
g��projects12006b695012-south tahoe uwmp4epart�finalWwmp reporl-v3.doc
Kennedy/Jenks Consultants
TABLE 4-2
RECYCLED WATER DEMAND 2005 to 2030
� �R
i'",.�. .,^.. . �.�. '.�� . �.,.'c:_:,� • '� a�� ..� .. �.°��i,` .���y ,_���.,... . .
`. �� _�•�,.;` Fiftered Secondary 4,593 , 5,824 6,048 6,384 6,384 6,384
���-
.��, ,���.,
M�-y"����
:�%:"" ��z :�
�` 'f' :R,�`y';:
����a
$����
w�
Other(user type)
Other(user type)
. . =�:x� � ;:'�` 3;�. �� �'' .����.�
. �;,��+;:.. -
t,
4.5 Recycled Water Quality
The District's VWVfP is currently permitted for secondary 23 recycled water. This means the
water has been oxidized and disinfected so that the median concentration of total coliform
bacteria does not exceed a Most Probable Number(MPN) of 23 per 100 milliliters (ml) and the
single day maximum does not exceed a MPN of 240 per 100 ml in any 30 day period. This is
explained further in the next section. Secondary treated wastewater(recycled water) is pumped
Lake Tahoe basin into AI ine County. Recycled water is stored in Harvey Place
out of the P
Reservoir. Recycled water from the reservoir is used for agricultural reuse on several properties
located between the reservoir and the State line.
4.6 Regulatory Requirements for Use of Recycled Water
This section provides a brief summary of the regulatory requirements for recycled water use
within the District. These regulations apply to use of recycled water for landscape irrigation,
agricultural and commercial/industrial users, and groundwater recharge.
Use of recycled water for nonpotable purposes is governed by regulations promulgated by the
California Department of Health Services (DHS), Division of Drinking Water and Environmental
Health. These regulations have been developed to ensure protection of public health, and as
such provide water quality criteria only for coliform bacteria and turbidity. Other water quality
constituents that may impact irrigation (e.g., plant growth) are not directly addressed in the
regulations. The main criteria under the DHS regulations that will need to be addressed include:
level of treatment to achieve tertiary quality (filtration and disinfection), minimum distance to
domestic wells, and cross connection requirements between recycled water systems and
potable systems.
Use of recycled water for nonpotable purposes requires a permit from the Lahontan Regional
Water Quality Control Board (LRWQCB)with input and concurrence by DHS. In some counties
the Environmental Health Department also takes an active role in monitoring and commenting
on a project and is a county-by-county decision. In addition, approval by the State Water
Resources Control Board (SWRCB) for"Petition for Change of Place and Purpose of Use" is
required for any change in discharge location or quantity of wastewater.
Final STPUD UWMP Update Page 4-6
9��D�qects12006`0695012-south lahoe uwrrW4epart�finalWwmp reparl-v3.doc
Kennedy/Jenks Consultants
Section 5: Water Shortage Contingency Plan
The following section summarizes the District's plan to respond to water shortage emergencies
so that water demands are met promptly and equitably.
5.1 Introduction
The District prepared its Emergency Response and Recovery Plan (Emergency Plan) in 1999 in
accordance with Government Code Section 8607.2(c). In the portion of the Emergency Plan
that addresses hazard assessment and vulnerability analysis the District cited contamination of
the water supply as an event that would have significant"weighY'as a disaster and provides
guidance during an emergency (see Emergency Plan, Table 14). However, the Emergency
Plan does not and cannot fill the need for specific operating procedures during specific disasters
due to its multi-zonal makeup and the innumerable possible response options available
depending on the emergency.
A Water Shortage Operations Contingency Plan (Water Shortage Plan)was adopted by the
District Board of Directors on May 6, 1999 to specifically reduce water demand due to
j contamination/threat by MTBE (Appendix E). Extreme operational and water conservation
measures are described in the Water Shortage Plan. Progressively strict water conservation
stages, as provided by the DistricYs Administrative Code Section 3.4, are an integral component
of the DistricYs Water Shortage Plan (see Appendix F).
Between the Emergency Plan and the Water Shortage Plan, the District is well prepared to
operate effectively in the face of a catastrophic water supply interruption.
5.2 Stages of Action
The District has five water conservation stages beginning with normal conditions and
progressing to a water emergency:
5.2.1 Stage 1 - Normal Conditions. �
During periods of adequate water supply, customers are to practice water conservation so that
water is not wasted.
• Water users shall not allow water to teave the property by draining onto adjacent
properties or impervious surfaces.
• Water users shall repair all leaks in plumbing and irrigation systems.
• Hoses shall not be used for washing motor vehicles without a shut-off nozzle.
Continuous discharge from hose nozzle is prohibited. Exceptions: commercial car
washing or commercial service stations, and where the health, safety, and welfare of the
public is dependent upon frequent vehicle cleaning, such as garbage trucks and vehicles
that transport food.
Final STPUD UWMP Update Page 5-1
gipryeds\200G�0695012-souU��ahoe uwmp�eporl\finalWwmP repoA-v3.doc
Kennedy/Jenks Consultants
• Citizens are encouraged to report signs of water leaks and water waste.
• The use of water to irrigate non-landscaped, natural vegetation, or undeveloped property
is prohibited unless necessitated by fire prevention considerations in cases of severe fire
danger.
5.2.2 Stage 2 - Minor Supply Shortage
All the stage 1 restrictions apply, and also the following shall apply:
• District water supply at minor stage (minimum of 2 percent reduction; see Table 5-1)
• Odd-even watering schedule.
• Water shall not be used to wash sidewalks, driveways, parking areas, tennis courts,
decks, patios, or other improved areas, except in conjunction with driveway repair and
sealing, or to alleviate immediate fire or sanitation hazards.
• All commercial establishments where food or beverages are provided shall serve water
to their customers only when specifically requested by the customer.
5.2.3 Stage 3 - Severe Water Supply Shortage
All the stage 1 and 2 restrictions apply, and also the following shall apply:
• District water supply at severe stage (minimum of 5 percent reduction; see Table 5-1)
• Irrigation is prohibited on weekends.
• The filling with water of outdoor swimming pools which are not covered during periods of
non-use is prohibited.
• The operation of any ornamental fountain or similar decorative water structure is
prohibited unless a recycling system is used and a notice to the public of such recyc�ing
system is prominently displayed.
5.2.4 Stage 4 - Critical Water Supply Shortage
All the stage 1, 2, and 3 restrictions apply, and the Board may designate specific areas for
further restrictions as follows:
• District water supply at critical stage (minimum of 15 percent reduction; see Table 5-1)
• Outdoor irrigation of all vegetation including lawns and landscaping is limited to once per
week, except more frequent irrigation of public facilities may be permitted pursuant to
STPUD Code Section 3.4.16.
• No water shall be used for irrigating landscaping for new construction.
Final STPUD UWMP Update Page 5-2
9lproje�{s12006a695012-sauth lahoe uwmp4eport�finalWxrtnp repart-v3 doc
Kennedy/Jenks Consultants
• Use of water from fire hydrants shall be limited to fire fighting and/or other activities
immediately necessary to maintaining the health, safety and welfare of the community,
as determined by the District or other government entity with appropriate jurisdiction.
5.2.5 Stage 5 - Water Emergency
All the stage 1, 2, 3, and 4 restrictions apply, and the Board may designate specific areas for
further restrictions as follows:
• District water supply at emergency stage (minimum of 50 percent reduction; see Table
5-1)
• The use of water for other than domestic and commercial use is prohibited except
irrigation of public facilities may be permitted pursuant to STPUD Code Section 3.4.16.
• The use of water for dust or dirt control, grading and road construction purposes is
prohibited.
• The use of water for flushing of fire hydrants, except for emergency purposes, as
determined by the District or other government entity with appropriate jurisdiction, is
prohibited.
• The use of water for air conditioning purposes, where an alternative source of fresh air is
available, is prohibited.
TABLE 5-1
WATER SUPPLY SHORTAGE STAGES AND CONDITIONS
Stage Stage 1 Stage 2 Stage 3 Stage 4 Stage 5
Supply Normal -0% Minor-2% Severe- 5% Critical - Emergency
Conditions 15% - 50%
Final STPUD UWMP Update Page 5-3
g:brqecls�Z006b695012-south tahoe uwmpYeport�finalWwmp repat-v3.dac
Kennedy/Jenks Consultants
5.3 Penalties
The District staff, under direction of the General Manager, is empowered to enforce compliance
with the staged conservation measures. It is unusual that water users exceed a first violation.
5.3.1 First Violation
For a first violation within one year, the District shall issue a written warning to the Water User.
5.3.2 Second Violation
For a second violation within one year, a fine of$100 shall be added to the bill of the residential
customer at the property where the violation occurred. Commercial accounts receive a fine of
$500 for a second violation within one year.
5.3.3 Third Violation
For a third violation within one year, a fine of$200 shall be added to the bill of the residential
customer at the property where the violation occurred. Commercial accounts receive a fine of
$750 for a third violation within one year. In addition to the fine, the Board or the General
Manager may require installation of a flow-restricting device on the Water User's service
connection.
5.3.4 Fourth Violation
� For a fourth and any additional violations within one year, a fine of$500 shall be added to the
bill of the residential customer at the property where the violation occurred. Commercial
accounts receive a fine of$1,000 for a fourth and any additional violations within one year. The
District may discontinue the Water User's water service at the property where the violation
occurred in accordance with District procedures. Re-connection shall be permitted only when
there is reasonable protection against future violations such as a flow-restricting device on the
customer's service connection as determined in the DistricYs discretion.
5.4 Revenue and Expenditure Impacts
As largely a flat rate system, impacts on revenues, expenditures, and operations are anticipated
to be minimal. The District has routinely employed seasonal water educators that assist existing
staff in enforcing water conservation measures.
5.4.1 Reduction Measuring Mechanism
Reductions would be determined by daily recording of water production at wells and monitoring
of available meters. Frequency of such monitoring can easily be increased.
�
Final STPUD UWMP Update Page 5-4
g:brojecls�2006�0695012-souM tahoe uwmp4epatlfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
5.4.2 Measures to Overcome Impacts
The District is seeking reimbursement of millions of dollars from those responsible for lost
production due to contamination by MTBE. The District may consider development of a water
shortage contingency rate structure and water shortage/reliability budget reserve to reduce
potential impacts on revenues and/or expenditures.
Final STPUD UWMP Update Page 5-5
g��prqects�2006�0695012-saM lahoe uwmplreportlfinalWwmp reporl-v3 doc
Kennedy/Jenks Consultants
Section 6: Demand Management Measures
This section provides a brief summary of the District's historical demand management
measures. This is followed by a description of the DistricYs current and future demand
management program as it applies to measures required by the Urban Water Management
Planning Act.
6.1 Introduction
The Urban Water Management Planning Act requires the UWMP include a description of 14
specific demand management measures (DMMs). Each of these DMMs is defined in Section
6.3 along with the DistricYs current and future program. "Demand management," as applied to
water conservation, refers to the use of ineasures, practices, or incentives implemented by
water utilities to permanently reduce the level or change the pattern of demand for a utility
service.
The California Urban Water Conservation Council (CUWCC)was formed in 1991 to increase
efficient water use statewide through partnerships among urban water agencies, public interest
organizations, and private entities. The goal of the CUWCC is to integrate urban water
conservation Best Management Practices (BMPs) into the planning and management of
California's water resources. CUWCC is composed of over 380 urban water suppliers and
environmental organizations. The District is not a signatory to the CUWCC document titled,
Memorandum of Understandinq Reqardinq Urban Water Conservation in California (MOU,
CUWCC, 2007) and is therefore not a member of the CUWCC. This MOU includes a list of 14
BMPs for demand management which are very similar to the measures required by the UWMP
Act.
6.2 Historical Demand Management Efforts
The District is committed to developing and implementing aggressive water conservation
programs that fit the needs of the resort community it serves. The District recognizes the value
and necessity of public education in its effective community outreach and communications
programs. An excerpt from the DistricYs mission statement expresses this core value:
"...the District will strive to share information with our customers to foster and maintain a
welf informed community."
The DistricYs water conservation programs are successful because they target the local
resident, vacationing guests, and commercial customers alike. Californians, as a group, are
very drought conscious citizens. Often a tourist will call to check on the level of water
restrictions the local water company has in effect.
The District has been promoting water conservation since 1982. The water conservation
programs have targeted residential, commercial, and vacationing water users in this resort
community. The District continues its efforts for improved water efficiency through public and
school education, low water use fixture promotions, staged water use restrictions, water
Final STPUD UWMP Update Page 6-1
9'lprojects12006`1I695012-south tahoe uwmp4epatlfinalWwmp report-v3 doc
Kennedy/Jenks Consultants
educator patrols, leak detection, an award-winning demonstration garden, and landscape
audits.
6.3 Demand Management Program
The following section summarizes the status of each of the 14 CUWCC demand management
measures, which they term as "best management practices" (BMPs). In addition, descriptions
of the District' demand management measures, not included in the MOU, are also provided
below.
6.3.1 BMP 1 - Water Survey Programs for Single-Family Residential I
and Multi-Family Residential Customers !
6.3.1.1 Interior Measures '
Formal surveys (also known as audits) can be conducted by trained District employees and are
generally provided at the request of a homeowner. In addition, the District may conduct focused
water use audits for residential customers with the highest annual water use. Homes built
before 1992 also can be targeted for this program, since they were constructed prior to revisions
in plumbing codes requiring water conserving plumbing fixtures in new construction. Residential
water surveys can be mailed (or email and intemet) to customers to conduct a setf-audit and
return the questionnaire to the District for tabulation.
An interior water audit generally includes the following elements:
• Identify types of water usage
. Estimate the amount of water used for each device or fixture
• Recommend fixture repair options if necessary
• Identify alternative water usage device or fixture possibilities
• Instruct customer on proper installation and use of plumbing retrofit kits (see
Section 6.3.2)
• Inform customer on how to read their own water meter
• Inform and educate residents to use and conserve water efficiently
Interior water savings achieved as the result of common water audits is difficult to predict,
however savings of 10 to 30 percent have been reported (Deoreo, 2001; Bruvold, 1993; Nelson,
1992). A moderate degree of lifestyle change may be required to achieve maximum water
savings. However, installation of a plumbing retrofit kit will result in substantial water savings
without a significant change in behavior(see Section 6.3.2). Audits for older single-family
homes tend to produce more savings, while newer multi-family homes tend to produce less
savings per housing unit. If the District implemented an audit program in conjunction with a
retrofit kit(see Section 6.3.2), then residential interior average savings of approximately 20 to
50 gpd per customer could be achieved (CUWCC, 2003; Bruvold, 1993; Nelson, 1992). In
Final STPUD UWMP Update Page 6-2
g:brojecls1200610695012-south tahoe uwmpYeport�finalWwmP repM-v3 doc
Kennedy/Jenks Consuitants
addition, customers may benefit from additional exterior water savings (see Section 6.3.1.2) and
reduced energy utility bills due to less hot water used.
The District anticipates completing 20 to 80 audits per year for the period 2006 to 2010.
Additional details are provided in Tables 6-1 and 6-2. Water audits will be conducted by District
staff for residential customers upon request and are free of charge. This onsite audit will include
a check for leaks, showerhead flow-rates, toilet flow rates, irrigation schedules and timers, and a
general review of outdoor irrigation. It is anticipated that audits will require one to five hours per
customer to complete including conducting the audit, transportation, and preparation of District
documentation as necessary. For the purposes of this UWMP, the District budgeted $50,000
for this DMM for the period 2007 to 2010. Since this measure will be completed by District
personnel, it is not anticipated to require additional expenditures for external staffing. District
water auditors are trained and certified by California State Polytechnic University, San Luis
Obispo. For purposes of projecting water savings, a conservative value of 20 gpd was assumed
for the survey.
6.3.1.2 Exterior Measures
Exterior water audits may include one of two types - routine and detailed. A routine exterior
water audit generally includes the following elements:
• Estimate the size of landscaped area
• Assess in-ground irrigation systems for leaks and broken sprinklers
• Measure precipitation rate of irrigation system
• Evaluate automatic control settings
. Develop suggested irrigation schedules
• Provide customer with public education materials.
Detailed exterior audits include all of the elements of the routine audit in addition to ir�igation
uniformity audits and soil assessments. Average exterior water savings achieved as the result
of routine water audits for single-family residential is approximately 6 gpd per single-family
housing unit(Bruvold, 1993; Nelson, 1992). However, detailed exterior audits may generate
water savings ranging from 10 to 50 gpd per single-family housing unit(CUWCC, 2000; Hawn,
1997).
Final STPUD UWMP Update Page 6-3
g:lprajects1200610695012-south tahoe uwmp4eportlfinalWwmp report-v3 doc
i
Kennedy/Jenks Consultants
TABLE 6-1
RESIDENTIAL WATER SURVEYS 2001-2005
Actual 2001 2002 2003 2004 2005
#of single family surveys 0 0 0 0 0
#of multifamily surveys 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
TABLE 6-2
PROPOSED RESIDENTIAL WATER SURVEYS 2006-2010
Planned 2006 2007 2008 2009 2010
#of single family surveys 0 15 30 45 60
#of multifamily surveys 0 5 10 15 20
projected expenditures-$ $0 $5,000 $10,000 $15,000 $20,000
projected water savings-AFY 0 0.4 0.9 1.3 1.8
6.3.1.3 Proposed Measure
Water audits will be conducted by the District for residential customers upon request and free of
charge. The formal audit by District staff will include a check for leaks, showerhead flow-rates,
toilet flow rates, irrigation schedules and timers, and a general review of outdoor irrigation. It is
anticipated that formal audits by District staff will require one to five hours per customer to
complete including conducting the audit, transportation, and preparation of District
documentation as necessary. Additional details are provided in Tables 6-1 and 6-2.
6.3.1.4 Schedule and Cost
The District anticipates completing 20 to 80 audits per year for the period 2006 to 2010. The
District projected expenditures of$50,000 for this DMM. Additional details are provided in
Tables 6-1 and 6-2.
6.3.1.5 Estimated Savings and Method Effectiveness
For the purposes of this UWMP, estimated water savings will be 4.4 AF for the period 2007 to
2010. Formal audits, when coupled with other measures including fixture retrofits discussed in
Section 6.3.2, coutd result in significantly greater savings. The District plans to measure
method effectiveness though staff reviews of the surveyed customers'water use records, and
comparison to historic use for one year after the survey. If the reduction in water use is not in
line with BMP water savings estimates, staff will flag the customer's account and offer a follow
up survey. Additional details are provided in Tables 6-1 and 6-2.
�
:�
.�
�
Final STPUD UWMP Update Page 6-4
9.lprojecls1200610695012-south tahoa uwmp4epatlfinalWwmp reparl-v3 doc
�
Kennedy/Jenks Consultants
6.3.2 BMP 2 - Residential Plumbing Retrofit
6.3.2.1 Fixture Retrofit Program
Fixture retrofit kits commonly include one or more of the following: device to displace water in
the toilet tank, a low flow showerhead, flow restrictor for the sink faucet, dye tablet to locate
leaks in the toilet, hose washers, hose repair kit, and hose sprayer. A Residential Retrofit
Program will benefit existing customers by reducing their water consumption with little change in
lifestyle. Water savings resulting from retrofit fixtures depends on many factors including age of
existing model, model of new fixture, participation rate, number of units installed per household,
number of residents per household, and acceptance by customer. Installation of retrofit fixtures
in older single-family homes tends to produce more savings, while newer multi-family homes
tend to produce less savings per housing unit.
Savings due to installation of a low-flow showerhead (2.75 gpm) over non-conserving (5 to ,
8 gpm) showerheads ranges from 39 to 90 gallons per household per day (generally one ',
showerhead per household, one 5-minute shower per person per day). (Deoreo, 2001; �I
Maddaus, 1987) Savings due to installation of a low-flow faucet aerator/restrictor(2.2 gpm) '
over non-conserving aerator(5 gpm) is approximately 38 to 96 gallons per household per day I
(based on 1 unit per dwelling, 2 to 5 uses per person per day and 2 minutes each). (Deoreo, �
2001; Maddaus, 1987) Savings resulting from installation of tank displacement bag/dams over
a non-conserving (5.5 gallon)toilet is approximately 11.9 gallons per toilet per day (generally
one toilet per household). (Maddaus, 1987) Savings resulting from reduction in leakage, mainly
toilets and dripping faucets, is approximately 15 gpd (Deoreo, 2001). Toilet replacement with
ultra-low flush toilets is generally not included in a retrofit program. Toilet replacement is
summarized in Section 6.3.14. A conservative estimate of interior water savings achieved due
to retrofit with only the showerhead and faucet restrictor for single-family and multi-family homes
ranges from approximately 48 to 114 gpd per housing unit(Deoreo, 2001; Bruvold, 1993;
Nelson, 1992; Maddaus, 1987).
Significant water savings may be generated due to combining measures such as water audits,
fixture leakage reduction, and installation of retrofit kits. A formal household water audit
implemented in conjunction with a retrofit kit would produce estimated water savings of
approximately 20 to 50 gpd per household (CUWCC, 2003; Bruvold, 1993; Nelson, 1992).
The District has provided retrofit kits and showerhead replacements (up to 5 per applicant) for
residential and hotels/motels. The District currently offers a $25 rebate for kitchen and
bathroom fixtures that have non-removable water volume restricting devices. The District
anticipates distributing approximately 30 to 70 kits per year for the period 2006 to 2010.
Additional rebates could be added if requested by the public. For purposes of projecting water
savings, a conservative value of 30 gpd per residence per rebate is assumed for the retrofit
program. Additional details are provided in Tables 6-3 and 6-4. In addition, the District provides
a $100 rebate for proof of purchase of a hot water circulating pump. These units are an in-line
device that continually circulates hot water within the plumbing system of a residence or building
and eliminates the need to"let the water run" until the water is hot. These units can save
thousands of gallons of water annually.
Final STPUD UWMP Update Page 6-5
g:lprojecls12006`0695012-south tahoe uwmp4epatlfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
TABLE 6-3
RESIDENTIAL RETROFIT REBATES 2001-2005
Actual 1992-2001 2002 2003 2004 2005
#of single family devices 0 0 0 0 0
#of multi-family devices 0 0 0 0 0
actual expenditures-$ 0 0 0 0 0
actual water savings-AFY 0 0 0 0 0
TABLE 6-4
PROPOSED RESIDENTIAL RETROFIT REBATES 2006-2010
Planned 2006 2007 2008 2009 2010
#of single family devices 20 25 30 35 40
#of multi-family devices 10 15 20 25 30
projected expenditures-$ $10,000 $15,000 $20,000 $25,000 $30,000
projected water savings-AFY 1.0 1.3 1.7 2.0 2.4
6.3.2.2 Proposed Measures
The District currently offers a $25 rebate for kitchen and bathroom fixtures that have non-
removable water volume restricting devices. It is anticipated that the District will continue with
the program including distributing approximately 30 to 70 retrofit rebates per year for the period
2006 to 2010. Additional details are provided in Tables 6-3 and 6-4.
6.3.2.3 Schedule and Cost
The District will distribute approximately 30 to 70 retrofit rebates per year for the period 2006 to
2010. Annual cost for the retrofit kit program will be approximately$10,000 in 2006 and
increasing to$30,000 by 2010. Since this measure will be completed by District personnel, it is
not anticipated to require additional expenditures for external staffing. Additional details are
provided in Tables 6-3 and 6-4.
6.3.2.4 Estimated Savings and Method Effectiveness
For purposes of projecting water savings, a conservative value of 30 gpd per residence is
assumed for the retrofit program. This program will produce savings of 8.4 AF for the period
2006 to 2010. In addition, customers benefit from reduced energy utility bills due to less hot
water used. Additional details are provided in Tables 6-3 and 6-4.
The District plans to measure method effectiveness though staff reviews of the surveyed
customers'water use records, and comparison to historic use for one year after the survey as
defined in Section 6.3.1. If the reduction in water use is not in line with BMP water savings
estimates, staff may flag the customer's account and offer a follow up survey.
Final STPUD UWMP Update Page 6-6
g Iprqects1200610695072-souM tahoe uwmp4eportlfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
6.3.3 BMP 3 — System Water Audits, Leak Detection and Repair
6.3.3.1 Main Replacement Program
A water main replacement program provides several benefits to the District including reduction
in the following: corroded pipes, leaking pipes, unaccounted-for water loss, and also costly
street repairs through unexpected water main breaks. However, the main �eplacement program
will be primarily a maintenance program. Thus, the main replacement costs will be paid via a
Capital Improvement Program budget not via a water conservation program. A conservative
estimate of total water savings will be approximately 1 percent of water demands for the period
2006 to 2010. During the past 6 years (2001 to 2006), the District has conducted an aggressive
mainline replacement program, replacing approximately 6.4 miles of old waterlines. Total cost
of this program was $9,100,000 over the 6 year period. It is anticipated that the District will
continue to replace slightly less than 1 mile per year at a cost of approximately$1,000,000 per
year over the 2007 to 2010 period. Additional details provided in Tables 6-5 and 6-6.
In addition, the District conducts flushing on selected areas, especially dead ends, at least once
a year. The flushing program consists of identifying each dead end within the system. Flushing
is noted in a separate logbook marked with the corresponding year and signed by the
Distribution Operators. Where possible the operators will note the main size and the flushing
velocity in feet per second. Operators will utilize a turbidimeter to assure that water within the
system is less than 1 NTU prior to terminating the flushing.
It is recommended that the District prepare an annual water system audit of estimated water
production and water demand. If production is greater than demands by 10 percent or more,
then the District would conduct a more detailed distribution system water audit and leak
detection program. It is recommended that the District conduct leak detection surveys of the
entire distribution system once every 2 to 3 years. District should conduct system audits and
leak detection studies in accordance with industry standards. The District should maintain
records of system audits and leak detection studies for a minimum of 10 years. Cost for a
system leak detection test is approximately$50,000. Funding for this program could be
provided by the DistricYs capital improvement program budget.
TABLE 6-5
DISTRIBUTION SYSTEM PROGRAMS 2001-2005
Adual 2001 2002 2003 2004 2005
%df ut18COOUt1teC1 V1l�ef
f17�2S Of fTT�I(1S SUNE'� � 0 � � �
miles of lir�es repaired 1.24 0.55 0.93 1.00 0.92
actual e�enditures-$ $1,766,615 $778,467 $1,323,081 $1,429,517 $1,316,512
actual water savings-AFY
Final STPUD UWMP Update Page 6-7
g:lprojeclslZ00G1069W 12-sauth lahoe uwmp4eportlfinalWwmp repM-v3 doc
KennedyiJenks Consultants
TABLE 6-6
PROPOSED DISTRIBUTION SYSTEM PROGRAMS 2006-2010
Planned 2006 2007 2008 2009 2010
%af ur�mted water
miles of rr�ins sunieyed 0 0 0 0 0
miles of lines repaired 1.75 0.75 0.80 0.86 0.60
projeded e�erxiitures-$ $2,493,513 $1,070,000 $1,144,900 $1,225,100 $852,000
projected water savirx,�s-AFY 68 68 68 68 68
6.3.3.2 Proposed Measures
It is recommended that the District continue with the water main replacement program. It is
estimated that the District will replace approximately 3 mile of distribution pipeline over the
period 2007 to 2010. Additional details are provided in Tables 6-5 and 6-6. It is recommended
that the District continue with the distribution system flushing program.
6.3.3.3 Schedule and Cost
The District anticipates replacing a total of nearly 3 miles of distribution pipe from 2007 to 2010
at a cost of approximately$4,000,000. Additional details are provided in Tables 6-5 and 6-6.
6.3.3.4 Estimated Savings and Method Effectiveness
A conservative estimate of total water savings will be approximately 1 percent per year(68 AFY)
of water demands for the period 2006 to 2010. Effectiveness of this DMM is measured through
the reduction in number of leaks detected and unaccounted for water losses in comparison to
past years. Additional details are provided in Tables 6-5 and 6-6.
6.3.4 BMP 4 — Metering with Commodity Rates for All New
Connections and Retrofit of Existing Connections
Existing law generally requires the installation of a water meter as a condition of potable water
service provided after January 1992. Assembly Bill No. 2572, signed into law September 2004,
requires urban water suppliers to do both of the following: 1) install water meters on all
municipal and industrial service connections located within its service area on or before 1
January 2025; and 2) charge each customer, that has a service connection and water meter,
based on the actual volume of water delivered beginning on or before 1 January 2010.
In 2005, the District had 801 (5 percent) metered accounts and 13,767 (95 percent) unmetered
accounts. A majority of the commercial accounts (82 percent) have meters. Each of the
commercial metered accounts were billed via a commodity rate structure. See Tables 6-7 and
6-8 for additional details. All commercial customers are required to have a meter for water
service. The District requires meters for all new customers. Currently, commercial customers
are charged a connection fee, quarterly service fee for meter use, and a commodity (volume)
charge of$2.00 per 100 cubic feet of water used. Selected residential customers already have
meters, however they are billed on a flat rate. See Appendix H for a copy of the DistricYs
Final STPUD UWMP Update Page 6-8
g.arojecls12006`U69W 12-south tahoe uwmp4epatlfinalWwmp reporl-v3.doc
Kennedy/Jenks Consultants
current water fees and charges. Currently, residential customers are charged a connection fee
and a quarterly flat rate for water used.
TABLE 6-7
METERING PROGRAM SUMMARY 2001-2005
Actual 2001 2002 2003 2004 2005
#of unmetered accounts 12413 12752 13090 13428 13767
#of retrofit meters installed 0 0 0 0 0
#of accounts w/o commodity r 12413 12752 13090 13428 13767
actual expenditures-$ $0 $0 $0 $0 $0 '
actual water savings-AFY 0 0 0 0 0
TABLE 6-8
PROPOSED METERING PROGRAM SUMMARY 2006-2010
Planned 2006 2007 2008 2009 2010
#of unmetered accounts 13838 13909 13980 14051 14123
#of retrofit meters installed 0 0 0 0 0
#of accounts w/o commodity r 13838 13909 13980 14051 14123
projected expenditures-$ $0 $0 $0 $0 $0
projected water savings-AFY 0 0 0 0 0
The District studied the cost of installing water meters in 1995 in connection with its Water Rate
Study (see Appendix G). A subsequent analysis was made in 2001 by District staff. Both
studies arrived at the same conclusion: it is not cost-effective for the District to meter at this
time. Similarly, a conservation rate is not warranted until a majority of the accounts have
meters. However, with the advent of MTBE contamination, poor results from test wells, fragility
of District drinking water supplies, and State Law AB No. 2572 lessens the value of a strict
cosUbenefit analysis in determining the wisdom and utility of installing water meters. The
District will continue to study and update this information. Meanwhile, the District maintains
initial capital funding for system-wide metering in its five-year capital budget forecast. The
District will consider conservation rates (i.e., increasing block, inverted block, tiered block) in the
future for all customers once all customers are metered.
The District recently replaced all existing standard manual read meters with meters with
automated meter reading (AMR) capability. The District is considering installation of ineters
with AMR for all accounts in the future. AMR meters have several advantages. Field
information is gathered and sorted immediately, reducing the necessiry of rereading meters.
New AMR meters eliminate lengthy data entry procedures by District staff and reduce data entry
error. Meters with AMR also produces a more precise recording of the water meter register,
providing the customer with a recording to the nearest 0.1 cubic foot of water. These new AMR
�
�
�
Final STPUD UWMP Update Page 6-9
g:lprqects12006'0695012-south tahoe uwmp4epat\finalWwmp repat-v3.doc
Kennedy/Jenks Consultants
;
meters would aiso reduce unaccounted-for water due to leaking meters and meters that under-
report the customer usage, although the exact amount is undetermined. This program would
not increase District staff resource requirements associated with manual meter reading.
Integration of AMR technology could be implemented by the District as part of a meter
exchange and installation program that includes a goal of a minimum of 10 percent per year.
The meter exchange program could start with single-family housing with existing meters. All
existing conventional meters could be replaced with AMR meters. In addition, District Planning
should require that all new accounts be equipped with AMR meters. Funding for this program
could be provided by capital improvement program (replacement meters), planning fees (new
service accounts), or a water conservation fee on all services.
6.3.4.1 Proposed Measure
In 2005, the District had 13,767 unmetered accounts and 801 metered accounts. Each of the
metered commercial accounts were billed via a commodity rate structure. It is recommended
that the District continue with commodity based rates for metered commercial accounts. It is
recommended that the District continue to assess installation of water meters for all accounts.
6.3.4.2 Schedule and Cost
The District will continue the existing metering program for commercial customers, meter
replacement program, and commodity rate structure. No additional costs are anticipated for the
existing metering program, meter replacement program, and commodity rate structure for the
period 2006-2010.
6.3.4.3 Estimated Savings and Method Effectiveness
No additional water savings or methods to measure savings are anticipated for the existing
metering program, meter replacement program, and commodity rate structure.
6.3.5 BMP 5 — Large Landscape Conservation Programs and
1 ncentives
The objective of landscape water use audits is to gather sufficient field data and implement a
demand management action plan. This program should provide owners of large landscaped
areas (commonly defined as 2 acres or more)with information to enable them to perform timely
equipment maintenance and to apply accurate irrigation amounts throughout the year. A
landscape water audit generally includes the following elements:
• Estimate size of landscaped area
• Define soil characteristics
• Assess in-ground irrigation systems for leaks and broken sprinklers
• Measure irrigation system uniformity rate
• Evaluate controller and automatic control settings
• Develop suggested irrigation schedules
• Provide customer with public education materials
Final STPUD UWMP Update Page 6-10
9:�projecls120061069W 72-south tahoe uwmp4epoRlfinalWwmp repor�-v3 doc
Kennedy/Jenks Consultants
Prior to the audits, the District will Identify accounts with large landscaped areas and estimate
� landscape irrigation budgets. These budgets will be discussed with the customers. District staff
may recommend dedicated irrigation meters for all commercial and/or industrial accounts or if
the lot is above a minimum size. The District may recommend replacement of all manual
irrigation controllers with automatic irrigation controllers capable of automatic shut off when a
sudden pressure loss occurs due to a broken system. The District may recommend installation
of soil moisture sensors for all automatic irrigation controllers. District staff may conduct follow-
up visits to each customer included in the landscape water use audit program. District staff may
track findings between audit and follow-up.
Benefits from audits include water and cost savings, as well as landscape health and
appearance. Simple adjustments in the irrigation schedules will achieve proper irrigation
efficiency. Significant reduction in water demand, estimates range from 15 to 50 percent, can
be achieved by modifying exterior vegetation and irrigation practices on landscaping (Hawn,
1997; DWR, 1989; CUWCC, 2003; Texas, 2004). Approximately 125 gallons of water per day
per large landscape account sunreyed (Texas, 2004) could be saved due to the audits. In
addition, educational materials regarding external landscaping care can be provided.
The District anticipates conducting 20 landscape irrigation surveys and conducting 10
landscape follow-ups starting in 2007, and increase the surveys to 35 and follow-ups to 25 by
2010 (see Table 6-10). The District anticipates conducting a follow-up survey six months to one
year after the original audit. The District anticipates this program will cost approximately �
$31,000 over the 2007 to 2010 period (see Table 6-10). For the purposes of this UWMP, it is
anticipated that each surveyed location may save 20,000 gallons per year. Total water savings
could range from 1.2 AF in 2007 to 2.1 AF in 2010 (see Table 6-10).
The District currently requires that customers irrigate landscaping on designated days of the
week. Even numbered addresses are allowed to water on Monday, Wednesday, and Friday.
Odd numbered addresses water on Sunday, Tuesday, and Thursday. No landscape irrigation is
permitted on Saturday since that is the District's peak demand day. District staff works with the
City of South Lake Tahoe staff to maximize landscape water use efficiency at ball fields and
public parks especially during periods of water use restrictions. The agencies have cooperated
in finding landscape uses for water that does not meet drinking water standards, thereby freeing
up additional potable water for the community. It is recommended that the District consider
implementing an annual irrigation audit program for District managed landscape areas.
Final STPUD UWMP Update Page 6-11
g:brojects12006Y1695012-south lahoe uwmP4epatlfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
I
i
TABLE 6-9
LARGE LANDSCAPE PROGRAMS 2001-2005
Actual 2001 2002 2003 2004 2005
#of budgets developed 0 0 0 0 0
#of surveys completed 0 0 0 0 0
#of follow-up visits 0 0 0 0 0
actual expenditures-$ 0 0 0 0 0
actual water savings-AFY 0 0 0 0 0
TABLE 6-10
PROPOSED LARGE LANDSCAPE PROGRAMS 2006-2010
Planned 2006 2007 2008 2009 2010
#of budgets developed 0 0
#of suNeys completed 0 20 25 30 35
#of follow-up visits 0 10 15 20 25
projected expenditures-$ $0 $5,000 $7,000 $9,000 $10,000 '
projected water savings-AFY 0.0 12 1.5 1.8 2.1
6.3.5.1 Proposed Measure
This program should provide owners of large landscaped areas (commonly defined as 2 acres
or more)with information to enable them to perform timely equipment maintenance and to apply
accurate irrigation amounts throughout the year. Prior to the audits, the District will Identify
accounts with large landscaped areas and estimate landscape irrigation budgets. These
budgets will be discussed with the customers.
6.3.5.2 Schedule and Cost
The District anticipates conducting 20 landscape irrigation surveys and conducting 10
landscape follow-ups starting in 2007, and increase the surveys to 35 and follow-ups to 25 by
2010 (see Table 6-10). The District anticipates this program will cost approximately$31,000
over the 2007 to 2010 period (see Table 6-10).
6.3.5.3 Estimated Savings and Method Effectiveness
For the purposes of this UWMP, it is anticipated that each surveyed location may save 20,000
gallons per year. Total water savings could range from 1.2 AF in 2007 to 2.1 AF in 2010 (see
Table 6-10). The District may conduct a follow-up survey six months to one year after the
original audit to track results.
Final STPUD UWMP Update Page 6-12
g:brojects12006`D695012-south tahoe uwmp4eport\finalWwmp report-v3.doc
Kennedy/Jenks Consultants
I
� 6.3.6 BMP 6 — High-Efficiency Washing Machine Rebate Programs
i
� On average, washing machines use approximately 22 percent of the interior water demand for
( an average single family home (A1NWA, 1999). New washers generally use less water and
energy compared to older appliances. Federal standards are pending which may require
clothes washers to be more energy efficient. Some of the new high-efficiency models use up to
52 percent less water and up to 63 percent less energy per load compared to older less efficient
models (Vickers, 2001). Water and energy savings vary with the new models, however the
CUWCC (2005) estimates water savings of approximately 5,100 gallons per year per new high-
efficiency washing machine. Total cost savings for water, wastewater, and energy were
estimated to be $43 to $106 per year(CUWCC, 2003). High efficiency models cost from $600
to$1,100 (compared to$300 to$700 for conventional units)which may reduce the rate of
participation. Examples of customers that would derive maximum benefit from this program
include multifamily residential units and laundromats with multiple washing machines per
location.
At present, the District offers a $250 rebate upon proof of purchase of high efficiency washing
machines both front-loading and some top-loading models. The District anticipates approving
35 to 45 rebates per year from 2006 to 2010. The District may conduct focused annual water
use audits for specific residential customers including the new high-efficiency washing machines
one year after rebate approval. Estimated program cost will be approximately$45,000 over the
2006 to 2010 period. Additional details are provided in Tables 6-11 and 6-12.
TABLE 6-11
WASHING MACHINE REBATE PROGRAM 2001-2005
Actual 2001 2002 2003 2004 2005
$per rebate 0 0 0 0 0
#of rebates paid 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY $0 $0 $0 $0 $0
TABLE 6-12
PROPOSED WASHING MACHINE REBATE PROGRAM 2006-2010
Planned 2006 2007 2008 2009 2010
$per rebate 250 250 300 300 350
#of rebates paid 35 35 40 40 45 I
projected expenditures-$ $8,750 $8,750 $12,000 $12,000 $15,750 �
projected water savings-AFY 0.5 0.5 0.6 0.6 0.7 ,
Final STPUD UWMP Update Page 6-13
9:lprqects12006b695012-south tahae uwmP4eport\finalWwmp report-v3 doc
Kennedy/Jenks Consuitants
'�, 6.3.6.1 Proposed Measure
� It is recommended that the District continue the existing program. At present, the District offers
a $250 rebate upon p�oof of purchase of high efficiency washing machines both front-loading
and some top-loading models. Additional details are provided in Tables 6-11 and 6-12.
6.3.6.2 Schedule and Cost
It is anticipated that 35 to 45 rebates per year will be approved from 2006 to 2010. The District
could include a follow-up survey regarding residential conservation measures one year after the
rebates are approved. This program will cost the District approximately$58,000 over the 2006
to 2010 period. Additional details are provided in Tables 6-11 and 6-12.
6.3.6.3 Estimated Savings and Method Effectiveness
The CUWCC (2005) estimates that annual water savings is 5,100 gallons per replacement of
conventional low-efficiency washing machine with a new high-efficiency washing machine.
Thus, the District estimates that water savings will be approximately 0.5 AF to 0.7 AF per year
from 2006 to 2010. The District will require proof of purchase of the high-e�ciency washing
machines prior to rebate approval. The District may conduct focused water use audits of
selected residential customers including the new high-efficiency washing machines one year
after rebate approval. Additional details are provided in Tables 6-11 and 6-12.
6.3.7 BMP 7 — Public Information Programs I�
The District recognizes the continued need for a public information program to maintain and
increase the public's awareness of water and the need to use it wisely. Public information is
used to promote the water conservation ethic and inform the public of the benefits derived from
1 conserving a valuable resource. Providing current water conservation information is a key part
of the DistricYs public information program activities. The on-going programs have proven
successful and are well received by customers. Continued educational programs are especially
important during non-drought periods. The District will continue to participate in various special
events, sponsor activities, and prepare materials that promote awareness of demand
management and water conservation issues. Several of these events, activities, and materials
are described below.
The District prepares an Annual Consumer Confidence Report (CCR)that is designed to inform
customers about the quality of water and services provided by the Water Division. The District
also included water conservation elements in the 2005 CCR. A copy of the current CCR is
provided in Appendix G.
In addition, the District has prepared news releases, water bill inserts, announcements, and
brochures to convey a water conservation message. These materials are distributed to
residents and available at special events and the District office. The District has supported
distribution of"table tents" for restaurants which promote "Water Upon Request Only". The
District also published articles in the local newspaper, which includes water conservation
suggestions. Examples of public information are provided in Appendix J. The District could
distribute preprinted materials available for purchase from American Water Works Association
or other water agencies. The District also posts conservation information, including rebate
Final STPUD UWMP Update Page 6-14
g��yrojec�s�2006b695012-south lahoe uwmp4eportlfinalWwmp reporl-v3 doc
Kennedy/Jenks Consultants
programs, on the District internet web page (http://www.stpud.us). The District should consider
distributing a conservation based newsletter to all customers each year during the 2006 to 2010
period. Additional details for the DMM provided in Tables 6-13 and 6-14.
The District also participates in other programs including radio and television. "Summertime
I Cooperative"with local radio station KOWL includes a morning water awareness report. "Talk
of Tahoe" show in spring/summer focuses on water awareness and water restrictions if in place.
The District may participate in annual Earth Day (late April) events which focus on the earth and
water awareness including water conservation. May is "Water Awareness Month" and the
USEPA declared August"Water Efficiency Month", both include opportunities to promote water
conservation. The District supports the"Day of the Young Child"at Lake Tahoe Community
College and the FirefesUHome Show which both include opportunities to promote water
conservation. These events are an excellent opportunity to communicate with customers the
importance of water conseniation. Examples of District public information are provided in
Appendix J. District staff will continue to make presentations to community groups, local service
clubs, schools, and special events. Staff is available to discuss the impact of short-term and
long-term water supply issues, including water conservation.
The District also promotes the community's 3.5 acre demonstration garden, located at Lake
Tahoe Community College, which was featured in Sunset Magazine and won the first place
award from the Tahoe Regional Planning Agency. It is an ongoing resource for local residents
and visitors who are planning and re-planning their landscape design. A landscaping
awareness program encourages native and low-moisture requirement landscaping. The District
supports distribution of free wildflower seed mix in partnership with Tahoe Resource
Conservation District.
The District has actively encouraged public participation in its water management planning
efforts, hosting annual public hearings to describe new capital water projects, budgets, rates,
conducting "open house"and neighbofiood meetings at new facilities. A citizen's advisory
group was established to assist the District in developing a Groundwater Management Plan to
prevent further contamination of groundwater.
For this UWMP Update, legal public notices and mailings were used to ensure full participation
by District customers and interest groups, as well as other local water and planning agencies.
A public meeting was held on 15 February, 2007, to allow for review and comment on the
UWMP before the Board's approval (Appendix C).
�
Final STPUD UWMP Update Page 6-15
glprqects12006`0695012-south lahoe uwmp4eport\finalWwmp report-v3.doc
Kennedy/Jenks Consultants
TABLE 6-13
i
PUBLIC INFORMATION PROGRAMS 2001-2005
�
� Actual 2001 2002 2003 2004 2005
a.paid advertising 36 36 36 36 36
b.Public Service Announcement 10 10 10 10 10
c.Bill Inserts I Newsletters/Brochures 2 2 2 2 2
d.Bill showing water usage in comparison to 0 0 0 0 0
previous year's usage
e.Demonstration Gardens 1 1 1 1 1
f.Special Events,Media Events 2 2 2 2 2
g.Speaker's Bureau 0 0 0 0 0
h.Program to coordinate with other
government agencies,industry and public 1 1 1 1 1
interest groups and media
actual expenditures-$ $20,000 $22,000 $24,000 $26,000 $28,000
TABLE 6-14
PROPOSED PUBLIC INFORMATION PROGRAMS 2006-2010
Planned 2006 2007 2008 2009 2010
a.paid advertising 36 38 40 40 45
b.Public Service Announcement 10 12 12 14 16
c.Bill Inserts/Newsletters 1 Brochures 2 2 2 2 2
d.Bill showing water usage in companson to � 0 0 0 0
previous year's usage �
e.Demonstration Gardens 2 2 2 2 2
f.Special Events,Media Events 3 3 3 3 3
g.Speaker's Bureau 0 0 0 0 0
h.Program to coordinate with other
government agencies,industry and public 1 1 1 1 1
interest groups and media
Projected expenditures-$ $30,000 $32,000 $34,000 $36,000 $38,000
6.3.7.1 Proposed Measure
It is recommended that the District continue to support a variety of public information programs.
The District should continue to include water conservation related material in the Annual
Consumer Confidence Report and in customers' water bills. The District plans to release paid
advertisements and public service announcements. The District wilt continue to support the
Final STPUD UWMP Update Page 6-16
gipro�eds�2006Y1695012-sou�h tahoe uwmp4epor�lfinalWwmp repor�-v3 doc
i
I
Kennedy/Jenks Consultants
Demonstration Garden and several other special events. Additional details are provided in
Tables 6-13 and 6-14.
6.3.7.2 Schedule and Cost
The District plans to release between 36 and 45 paid advertisements per year and 10 to 16
public service announcements during the 2006 to 2010 period. Estimated costs for
implementing the proposed pubtic information program will be$30,000 to$38,000 per year for
the 2006 to 2010 period.. Additional details are provided in Tables 6-13 and 6-14.
6.3.7.3 Estimated Savings and Method Effectiveness
Water savings due to public information programs are extremely di�cult to estimate. Water
savings due to public education can result from specific demand management measures for
example residential retrofit, high-efficiency washing machines, and ultra-low flow toilets. Thus,
for the purposes of this report water savings are not quantified (CUWCC, 2005). The District
will document the types of water conservation related information provided to customers
throughout the year.
6.3.8 BMP 8 — School Education Programs �,
Primary focus of the school education programs is to educate children on water resource !
issues, water use, and conservation. School programs provide educational materials and
training to school children about where water comes from, how it is used, and ways to conserve
water. School education programs help future water users realize that water in southern
California is a precious commodity that cannot be taken for granted.
Historically, the District has actively promoted water education through the local schools. The
District sponsored the water conservation Poster Contest which included a school drawing
contest conducted in association with the Soroptomists Club. Winning drawing is made into a
poster and distributed throughout the service area. The District also promoted the "Day of the
Young Child"at Lake Tahoe Community College which includes opportunities to promote water
conservation. The District also promotes the community's 3.5 acre demonstration garden,
located at Lake Tahoe Community College.
District staff are available to make presentations to community groups, local service clubs,
schools, and special events. Topics may include water supply issues, treatment, and water
conservation. The District anticipates conducting 7 to 10 classes per year from 2006 to 2010.
Additional details are provided in Tables 6-15 and 6-16. Materials and classes should meet
State and local education requirements. Examples of public information materials are provided
in Appendix J. The District may also provide tours of the DistricYs water facilities. Funding for
this program could be provided by planning fees or a future water conservation fee on new
services.
Final STPUD UWMP Update Page 6-17
g:�yrojecls12U0G10695072-soulh t�oe uwmp4epoA1finalWwmp reporl-v3 doc
i
�
i
��
;� Kennedy/Jenks Consultants
TABLE 6-15
SCHOOL PRESENTATIONS 2001-2005
Actual #of classes 2001 2002 2003 2004 2005
Grades K-3rd 0 0 0 0 0 0
Grades 4th-6th 0 0 0 0 0 0
Grades 7th-8th 0 0 0 0 0 0
High School 0 0 0 0 0 0
actual expenditures-$ 0 $0 $0 $0 $0 $0
TABLE 6-16
PROPOSED SCHOOL PRESENTATIONS 2006-2010
Planned #of classes 2006 2007 2008 2009 2010
Grades K-3rd 10 2 2 2 2 2
Grades 4th-6th 12 2 2 2 3 3
Grades 7th-8th 11 1 2 2 3 3
High School 10 2 2 2 2 2
projected expenditures-$ 0 $10,000 $12,000 $12,000 $14,000 $16,000
6.3.8.1 Proposed Measure
The District will implement school education programs which promote water conservation,
inctuding providing class presentations, educational materials, and tours of the DistricYs water
facilities. It is anticipated that the District will provide materials and speakers for each class.
Education materials will achieve the State, district, and school education requirements.
Additional details are provided in Tables 6-15 and 6-16.
6.3.8.2 Schedule and Cost
It is anticipated that the District will conduct 7 to 10 classes per year for the period 2006 to 2010.
Estimated costs for the classes, education materials, and speakers will be$64,000 for the
'i period 2006 to 2010. Additional details are provided in Tables 6-15 and 6-16.
li 6.3.8.3 Estimated Savings and Method Effectiveness
� Water savings due to school information programs are extremely difficult to estimate. Water
savings can result from specific demand management measures for example residential retrofit,
high-efficiency washing machines, and ultra-low flow toilets. For the purposes of this report
water savings due to school information programs are not quantified (CUWCC, 2005). The
District will document the types of water conservation related information provided to schools
and teachers throughout the year including annual budget for these programs.
Final STPUD UWMP Update Page 6-18
g��prqects1200610695012-sauth lahoe uwmp4eporllfinalWwmp report-v3.doc
I
i�
Kennedy/Jenks Consultants
6.3.9 BMP 9 — Conservation Programs for Commercial, Industrial,
and Institutional (C11) Accounts
Objective of this program is to encourage the replacement of fixtures commonly found at
commercial, institutional (i.e., government and schools), and industrial (CII) sites having the
greatest potential water savings. This program targets sites with the largest water savings
potential by marketing directly to their owners and corporate headquarters. Examples of CII
programs include process water audits, fixture retrofits (ULFT, faucets, etc.), public education
materials, coin operated washing machine replacement, and cooling tower improvements.
The District may conduct a detailed onsite survey with the targeted CII accounts and/or send a
survey by mail. A CII water audit generally includes the following elements:
• Identify types of water usage
• Estimate process water requirements
• Estimate cooting water requirements
• Estimate the amount of water used for each device or fixture
• Recommend fixture repair options if necessary
• Identify alternative processes and fixture options if necessary
• Instruct customer on proper installation and use of plumbing retrofit kits
• Inform and educate participants to use and conserve water efficiently
• Assess irrigation requirements (optional).
The District will conduct surveys for 15 to 27 CII accounts per year over the period 2006 to
2010. The District may choose to rank CII accounts according to water use. This will involve
collecting information from the District's billing system. The District may then select CII
accounts with the highest water use for further communication and surveys. The surveys may
be followed by monitoring water usage over the following year to track results. Estimated water
savings is 1 percent per year(total of 5 percent) for the period 2006 to 2010 (CUWCC, 2005).
For the purposes of this report, it is anticipated that CII customers will save 9.7 AF (average of
100 gpd per account) over the period 2006 to 2010 as the result of the survey and fixture
replacement program. Additional water savings may result when combined with other
measures such as landscape irrigation audits, process water audits, fixture replacement, and
�i cooling tower replacement. The District anticipates 21 to 24 ULFT rebates for CII accounts
during the 2006 to 2010 period. A mailed survey will be sent to CII customers one year after
� receiving the onsite survey and/or ULFT to track results. Additional details are provided in
; Tables 6-17 to 6-20.
Final STPUD UWMP Update Page 6-19
g.brojects�200610695012-sauM tahoe uwmp4eport\finalWwmp repat-v3.doc
Kennedy/Jenks Consultants
TABLE 6-17
CII PROGRAMS 2001-2005
, Actual 2001 2002 2003 2004 2005
� #of surveys completed 0 0 0 0 0
I Were incentives provided? 0 0 0 0 0
i #of follow-up visits 0 0 0 0 0
� actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
' TABLE 6-18
PROPOSED CII PROGRAMS 2006-2010
Planned 2006 2007 2008 2009 2010
#of surveys completed 0 15 20 25 27
Were incentives provided? yes yes yes yes yes
#of follow-up visits 0 3 4 5 6
projected expenditures-$ $10,000 $12,000 $14,000 $15,000 $16,000
projected water savings-AFY 0.0 1.7 2.2 2.8 3.0
TABLE 6-19
CII TOILET REPLACEMENT REBATES 2001-2005
Actual 2001 2002 2003 2004 2005
#of commercial replacements 0 0 0 0 0
#of industrial replacements 0 0 0 0 0
#of institutional replacements 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
Final STPUD UWMP Update Page 6-20
g:lprojects�2006b695012-south tahoe uwmp4eport\finalWwmp reporl-v3 doc '�,
Kennedy/Jenks Consultants
TABLE 6-20
PROPOSED CII TOILET REPLACEMENT REBATES 2006-2010
Planned 2006 2007 2008 2009 2010
#of commercial replacements 20 21 22 23 24
#of industrial replacements 0 0 0 0 0
#of institutional replacements 0 0 0 0 0
projected expenditures-$ $5,000 $6,000 $7,000 $8,000 $9,000
projected water savings-AFY 0.8 0.9 0.9 1.0 1.0
6.3.9.1 Proposed Measure
This program targets sites with the largest water savings potential by marketing directly to their
owners and corporate headquarters. The District may conduct a detailed onsite survey with the
targeted CII accounts and/or send a survey by mail. In addition, the District can provide public
education materials to the customer. The District anticipates conducting an ULFT rebate
program for CII accounts during the 2006 to 2010 period. Additional details are provided in
Tables 6-17 to 6-20.
6.3.9.2 Schedule and Cost
The District will conduct surveys for 15 to 27 CII accounts per year over the period 2006 to
2010. The District anticipates 21 to 24 ULFT rebates for CII accounts during the 2006 to 2010
period. Estimated cost for the C11 programs will be $102,000 for the period 2006 to 2010.
Additional details are provided in Tables 6-17 to 6-20.
6.3.9.3 Estimated Savings and Method Effectiveness
For the purposes of this report, it is anticipated that surveyed CII customers will save 9.7 AF
(average of 100 gpd per account) over the period 2006 to 2010 as the result of the survey and
fixture replacement program. For the purposes of this report, it is anticipated that CII customers
will save 4.6 AF (average of 37 gpd per ULFT replacement) over the period 2006 to 2010. A
survey (onsite or mailed)will be provided to CII customers one year after receiving the onsite
survey and/or ULFT to track resutts. Additional details are provided in Tables 6-17 to 6-20.
6.3.10 BMP 10 — Wholesale Agency Assistance Programs
Although the District is not a wholesaler, nor purchases water from wholesalers, it does
participate in local and regional public programs. District staff works with the City of South Lake
Tahoe staff to maximize landscape water use efficiency at ball fields and public parks especially
during periods of water use restrictions. The agencies have cooperated in finding landscape
uses for water that does not meet drinking water standards, thereby freeing up additional
potable water for the community.
The District also promotes the community's 3.5 acre demonstration garden, located at Lake
Tahoe Community College, which was featured in Sunset Magazine and won the first place
Final STPUD UWMP Update Page 6-21
g'�prajec�s�200610695012-south lahoe uvrtnp4epatlfinalWwmp repart-v3.doc
Kennedy/Jenks Consultants
award from the Tahoe Regional Planning Agency. The District supports distribution of free
wildflower seed mix in partnership with Tahoe Resource Conservation District.
6.3.10.1 Proposed Measure
The District is not a wholesaler, thus there are no specific programs or activities to sponsor. It is
recommended that the District continue to participate in local and regional organizations to
reinforce relationships with other member agencies to enhance water resource flexibility and
assistance in response to operational disruption, extended drought, or other emergency.
Additional details are provided in Appendix L, DWR UWMP Review of DMMs for Completeness
Forms.
6.3.10.2 Schedule and Cost
It is recommended that the District continue to participate in local and regional organizations
during the period 2006 to 2010. No additional costs are anticipated for this DMM over the 2006
to 2010 period since the District is not a wholesaler.
6.3.10.3 Estimated Savings and Method Effectiveness
No additional water savings or methods to measure savings are anticipated since the District is
not a wholesaler.
6.3.11 BMP 11 — Conservation Pricing
The District has the legal authority to evaluate and set rates for its customers. Conservation
rates can be applied to all single-family residential, multi-family residential, and commercial
accounts. A conservation rate structure is similar to utility rate structures in place for electricity
and natural gas. Conservation rates include volume based pricing of one or more blocks.
Often, the unit price within each block increases with each successive block, resulting in an
increase in the incremental and the average cost of water with increased customer usage. For
increasing block rate structures, the block (quantity) shift points are generally based upon the
unique demand characteristics of each user class and are focused on user demand points to
enhance water usage awareness. Conservation rates provide many benefits including reducing
water demands, decreasing hot water(and energy costs) demands, and decreasing wastewater
flows. A conservation block rate tends to decrease water usage, (i.e., promote water
conservation), due to the economic disincentive to waste water. Conservation pricing may also
include seasonal rates and/or excess-use surcharges to reduce peak demands during summer
periods.
However, a conservation rate structure is only effective for metered accounts. Currently, only 5
percent of the DistricYs accounts (mainly commercial) have meters. Currently, commercial
customers are charged a connection fee, quarterly service fee for meter use, and a volume
charge of$2.00 per 100 cubic feet of water used. See Table 6-21 for water and sewer rates by
account type. All commercial customers are required to have a meter for water service. See
Appendix H for a copy of the DistricYs current water fees and charges. Currently, residential
' customers are charged a connection fee and a quarterly flat rate for water used.
I!
Final STPUD UWMP Update Page 6-22
g:�prqects12006b695012-south tahoe uwmp4epartlfinalWwmp repat-v3 doc
Kennedy/Jenks Consultants
Existing law generally requires the installation of a water meter as a condition of potable water
service provided after January 1992. The District requires meters for all new customers.
Assembly Bill No. 2572, signed into law September 2004, requires urban water suppliers to do
both of the following: 1) install water meters on all municipal and industrial service connections
located within its service area on or before 1 January 2025; and 2) charge each customer, that
has a service connection and water meter, based on the actual volume of water delivered
beginning on or before 1 January 2010.
TABLE 6-21
WATER AND SEWER RATES BY ACCOUNT TYPE
Residential
Water Rate Structure flat Sewer Rate Structure $25.99/qtr
Year rate effective 2006 Year rate effective 2006
Commercial
Water Rate Structure $2/HCF Sewer Rate Structure $24.53-27.97/qtr
Year rate effective 2006 Year rate effective 2006
Industrial
Water Rate Structure $2/HCF Sewer Rate Structure $27.97/qtr
Year rate effective 2006 Year rate effective 2006
InstitutionallGovemment
Water Rate Structure $2/HCF Sewer Rate Structure $27.97/qtr
Year rate effective 2006 Year rate effective 2006
Irrigation
Water Rate Structure $2/HCF
Year rate effective 2006
Other
Water Rate Structure $2/HCF Sewer Rate Structure $27.97/qtr
Year rate effective 2006 Year rate effective 2006
The District studied the cost of installing water meters in 1995 in connection with its Water Rate
Study (see Appendix G). A subsequent analysis was made in 2001 by DistricYs staff. Both
I, studies arrived at the same conclusion: it is not cost-effective for the District to meter at this
� time. A conservation rate is not warranted until a majority of the accounts have meters.
' However, with the advent of MTBE contamination, poor results from test wells, fragility of District
i drinking water supplies, and State Law AB No. 2572 lessens the value of a strict cosUbenefit
� analysis in determining the wisdom and utility of installing water meters. The District will
continue to study and update this information. Meanwhile, the District maintains initial capital
� funding for system-wide metering in its five-year capital budget forecast. The District will
consider conservation rates (i.e., increasing block, inverted block, tiered block) in the future for
all customers once all customers are metered.
6.3.11.1 Proposed Measure
The District has the legal authority to evaluate and set rates for its customers. Currently, only 5
percent of the DistricYs accounts have meters. All of the commercial metered accounts are
charged a volume based rate. The District will consider volume based rates in the future for all
customers once all customers are metered. Additional details are provided in Table 6-21.
Final STPUD UWMP Update Page 6-23
g:lprojects1200610695072-south tahoe uwmp4epart\finalWwmp reporl-v3.dac
Kennedy/Jenks Consultants
6.3.11.2 Schedule and Cost
The District will consider volume based rates in the future for all customers once all customers
are metered. No additional costs are anticipated to implement this measure for the period 2006
to 2010. Additional details are provided in Table 6-21.
6.3.11.3 Estimated Savings and Method Effectiveness
Water savings due to conservation pricing would be difficult to estimate since only 5 percent of
accounts currently have meters. Rate-based water savings can result from specific demand
management measures, for example high-efficiency washing machines and ultra-low flow
toilets. For the purposes of this report water savings due to rate programs are not quantified
(CUWCC, 2005). If the District approved a new residential metering program and conservation
water rate structure, District staff could document annual water and wastewater savings by user
class for each reporting period.
6.3.12 BMP 12 - Conservation Coordinator
Currently, numerous staff within the District implement water conservation related activities.
Activities coordinated include the following: review and analyze water use on a District-wide
basis; preparation and dissemination of public information materials; provide follow-up and
response to inquires or complaints; coordinate water conservation programs; compile and verify
data; coordinate requests for speakers on water topics; and participate in local, regional, and
state organizations that promote water conservation. These activities result in high consumer
awareness of water use practices.
The District will allocate additional staff resources over the next 5 years to assist with
implementation of the DistricYs routine demand management measures and coordination of
District water restrictions during a drought. It is recommended that the District clearly define the
role(s)and tasks for staffing the demand management measures. Many of these activities
could be administered by a dedicated Water Conservation Coordinator to oversee and
coordinate the DistricYs conservation programs, and improve the effectiveness of the DistricYs
conservation efforts. The District anticipates funding 3 full-time positions in 2006 and increasing
to 4 full-time positions for the period 2007 to 2010. Costs for the water conservation coordinator
programs will be $230,000 for the period 2006 to 2010. Additional details provided in Tables 6-
22 and 6-23.
I
Final STPUD UWMP Update Page 6-24
glprqecls12006`0695012-south lahoe uwmp4eporl\finalluwmp reporFv3.doc
Kennedy/Jenks Consultants
TABLE 6-22
WATER CONSERVATION COORDINATOR PROGRAM 2001-2005
Actual 2001 2002 2003 2004 2005
#of full-time positions 0 0 0 0 0
#of full/part-time staff 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
TABLE 6-23
PROPOSED WATER CONSERVATION COORDINATOR PROGRAM 2006-2010
Planned 2006 2007 2008 2009 2010
#of full-time positions 3 4 4 4 4
#of full/part-time staff 0 0 0 0 0
projected expenditures-$ $30,000 $50,000 $50,000 $50,000 $50,000
6.3.12.1 Proposed Measure
The District will allocate additional staff resources over the next 5 years to assist with
implementation of the DistricYs routine demand management measures and coordination of
District water restrictions during a drought. Additional details are provided in Tables 6-22 and 6-
23.
6.3.12.2 Schedule and Cost
�� The District anticipates funding 3 full-time positions in 2006 and increasing to 4 full-time
� positions for the period 2007 to 2010. Costs for the water conservation coordinator programs
� will be$230,000 for the period 2006 to 2010. Additional details are provided in Tables 6-22 and
6-23.
6.3.12.3 Estimated Savings and Method Effectiveness
Water savings due to a water conservation coordinator would be difficult to estimate. A water
conservation coordinator can influence water savings from specific demand management
measures for example residential retrofit, high-efficiency washing machines, and ultra-low flow
toilets. For the purposes of this report water savings due to rate programs are not quantified
(CUWCC, 2005). The District will provide necessary resources to implement cost-effective
BMPs. Additional details are provided in Tables 6-22 and 6-23.
6.3.13 BMP 13 — Water Waste Prohibition
The District prepared its Emergency Response and Recovery Plan (Emergency Plan) in 1999 in
accordance with Government Code Section 8607.2(c). In the portion of the Emergency Plan
that addresses hazard assessment and vulnerability analysis the District cited contamination of
the water supply as an event that would have significant"weight"as a disaster and provides
Final STPUD UWMP Update Page 6-25
g.lprajects�2006b695012-south tahoe uvrtnp4eportlfinalWwmp reporl-v3.doc
Kennedy/Jenks Consultants
guidance during an emergency. However, the Emergency Plan does not and cannot fill the
need for specific operating procedures during specific disasters due to its multi-zonal makeup
and the innumerable possible response options available depending on the emergency.
A Water Shortage Operations Contingency Plan (Water Shortage Plan)was adopted by the
District Board of Directors on May 6, 1999 to specifically reduce water demand due to
contamination/threat by MTBE (Appendix E). Extreme operational and water conservation
measures are described in the Water Shortage Plan. Progressively strict water conservation
stages, as provided by the DistricYs Administrative Code Section 3.4, are an integral component
of the DistricYs Water Shortage Plan. The District has five water conservation stages beginning
with normal conditions and progressing to a water emergency. See Section 5 for additional
details regarding the District's water shortage contingency plan.
During periods of adequate water supply, customers are to practice water conservation so that
water is not wasted. Details of the DistricYs normal condition are provided below and in Tables
6-24 and 6-25:
• Water users shall not allow water to leave the property by draining onto adjacent
properties or impervious surfaces.
• Water users shall repair all leaks in plumbing and irrigation systems.
• Hoses shall not be used for washing motor vehicles without a shut-off noule.
Continuous discharge from hose noizle are prohibited. Exceptions: commercial car
washing or commercial service stations, and where the health, safety, and welfare of the
public is dependent upon frequent vehicle cleaning, such as garbage trucks and vehicles
that transport food.
• Citizens are encouraged to report signs of water leaks and water waste.
• The use of water to irrigate non-landscaped, natural vegetation, or undeveloped property
is prohibited unless necessitated by fire prevention considerations in cases of severe fire
danger.
It is recommended that the District consider amending the existing water waste ordinance to
include additional measures such as prohibiting gutter flooding, single pass cooling systems in
new connections, non-recirculating systems in all new conveyor car wash and commercial
laundry systems, and non-recycling decorative water fountains (CCWUA, 2005).
Final STPUD UWMP Update Page 6-26
g:�projects12006`A695012-sou�h tahoe uwmplrepal\finalWwmp report-v3.doc
Kennedy/Jenks Consultants
TABLE 6-24
WATER WASTE PROHIBITION PROGRAM 2001-2005
Actual 2001 2002 2003 2004 2005
waste ordinance in effed 0 0 0 0 0
#of on-site visits 0 0 0 0 0
water softener ordinance 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
TABLE 6-25
PROPOSED WATER WASTE PROHIBITION PROGRAM 2006-2010
Planned 2006 2007 2008 2009 2010
waste ordinance in effect yes yes yes yes yes
#of on-site visits 100 105 110 115 120
water softener ordinance no no no no no
projected expenditures-$ $5,000 $5,500 $6,000 $6,500 $7,000
6.3.13.1 Proposed Measure
The District will maintain and enforce the existing water waste ordinance. The District plans to
conduct 100 to 120 onsite visits per year for the period 2006 to 2010. Additional details are
provided in Tables 6-24 and 6-25.
6.3.13.2 Schedule and Cost
The District plans to conduct 100 to 120 onsite visits per year for the period 2006 to 2010.
Estimated costs for this program are $30,000 over the period 2006 to 2010. Additional details
are provided in Tables 6-24 and 6-25.
6.3.13.3 Estimated Savings and Method Effectiveness
For the purposes of this UWMP, no additional water savings or methods to measure savings are
anticipated since the District has an existing water waste ordinance. The District will include
additional site visits and distribute public education materials to customers to encourage water
conservation.
6.3.14 BMP 14 — Residential ULFT Replacement Programs
Ultra-low flush toilets (ULFT) commonly use approximately 1.6 gallons per flush. However,
some types use as little as 0.5 gallons per flush. This program can be one of the most cost-
effective water savings programs. An added benefit is the reduction of water demand on the
District system, thus delaying or eliminating capacity-related capital improvements. Higher
savings are found in high-density housing and commercial/industrial settings. Savings also
persist over the entire lifespan of the toilet (approximately 25 years). Water conserved in ULFT
replacement programs have been shown to be 1.9 to 5.4 gallons of water savings per flush per
Final STPUD UWMP Update Page 6-27
g:lprqecls1200610695012-souU�tahoe uwmp4epor1lfinalWwmp report-v3 doc
Kennedy/Jenks Consuitants
toilet which equates to 12 to 45 gallons per replacement per day. For the purposes of this
report estimated savings is 40 gallons per toilet per day for single-family units and 50 gpd for
multi-family units.
Alternative methods for promoting toilet replacement include: (1) implementing a retrofit on
resale ordinance where homes are required to retrofit to low flow fixtures upon a resale, and
(2) direct distribution programs. It is recommended that the District consider a new "retrofit on
resale"ordinance where existing homeowners are required to retrofit to low-flow fixtures prior to
resale. A retrofit on resale ordinance is inexpensive from the DistricYs perspective since retrofit
costs are shifted to the home seller/purchaser. These ordinances tend to be unpopular with the
real estate community and home sellers, since it may impede a sale due to timing and may
require replacing floor coverings around the toilet. Communities in California which have a
retrofit on resale ordinance include the Monterey Peninsula Water Management District, North
Marin Water District, City of San Diego, City of San Francisco, and City of Santa Monica (DWR
website). Direct distribution programs consist of providing a ULFT (1.6 gal/flush) in exchange
for a customer provided toilet(generally 3.5 to 7 gal/flush). This alternative is generally effective
but may have an increased administrative cost due to the need for staffing the distribution
center and also for disposal of the retired toilets.
It should be recognized that natural replacement (approximately 3 to 4 percent per year)will
eventually replace all of the older, high water use models with 1.6 gal/flush toilet models as
required by the revised plumbing code. However, this would likely take more than 25 years to
complete. ULFT incentive programs accelerate the water savings and as such can help defer or
eliminate other capacity-related capital investment needs.
Recent proposed federal legislation intending to repeal the low-flow plumbing standards, in part
due to anecdotal complaints of poor performance of ULFTs, was defeated when proposal
supporters could not produce customer complaints and opponents showed empirical data
indicating consumer satisfaction was high.
It is recommended that the District continue to fund a ULFT replacement program. The District
anticipates funding 25 to 35 ULFT rebates per year from 2006 to 2010. This program will be
available to all single-family and multi-family customers within the District. The District currently
offers a $75 rebate for all customers with non-ULFT within the District. A ULFT program should
be funded until nearly all high-flow toilets are replaced in the District. Additional details are
provided in Tables 6-26 and 6-27. District planning fees (examples include new water meter
fees, development mitigation fee, or water conservation fee) could be used to fund water
demand management programs like an ULFT program.
Final STPUD UWMP Update Page 6-28
g:brojecls12006b695012-south tahoe uwmp4aportlfinalWwmp report-v3.doc
Kennedy/Jenks Consultants
TABLE 6-26
RESIDENTIAL TOILET REPLACEMENT REBATES 2001-2005
Actual 2001 2002 2003 2004 2005
#of ULF rebates 0 0 0 0 0
#of ULF direct installs 0 0 0 0 0
#of ULF CBO installs 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
TABLE 6-27
PROPOSED RESIDENTIAL TOILET REPLACEMENT REBATES 2006-2010
Planned 2006 2007 2008 2009 2010
#of ULF rebates 25 30 35 35 35
#of ULF direct installs 0 0 0 0 0
#of ULF CBO instalis 0 0 0 0 0
projected expenditures-$ $5,000 $5,500 $6,000 $6,500 $7,000
projected water savings-AFY 1.1 1.3 1.6 1.6 1.6
6.3.14.1 Proposed Measure
It is recommended that the District continue to conduct a ULFT replacement program. The
District currently offers a$75 rebate for all customers with non-ULFT within the District. This
program is not specific to single-family or multi-family customers. Thus program details were
combined into one set of summary tables as compared to splitting into separate single-family
and multi-family tables. A ULFT program should be funded until nearly all high-flow toilets are
replaced in the District. Additional details are provided in Tables 6-26 and 6-27.
6.3.14.2 Schedule and Cost
The District anticipates funding 25 to 35 ULFT rebates per year from 2006 to 2010. This
program will be available for all residential customers within the District. This program will cost
approximately$5,000 to$7,000 per year from 2006 to 2010. Additional details are provided in
Tables 6-26 and 6-27.
6.3.14.3 Estimated Savings and Method Effectiveness
Estimated savings are 40 gallons per toilet per day for single-family units and 50 gpd for multi-
family units. A conservative estimate of the total water conserved in the proposed ULFT
replacement program is 1.1 to 1.6 AF per year from 2006 to 2010. Additional details are
provided in Tables 6-26 and 6-27. To measure effectiveness, the District will calculate annual
ULFT replacement program water savings to confirm the savings are within 10 percent of
Final STPUD UWMP Update Page 6-29
g.brojecls12006b695012-sauth tahoe uwmpYepart\finalWwmp repat-v3.doc
Kennedy/Jenks Consultants
calculated water savings (CUWCC, 2005) methodology and water savings estimates. The
District will conduct residential surveys (Section 6.3.1) and follow-up surveys.
6.4 Summary of Program Costs and Water Savings
Table 6-28 summarizes the estimated water demand management program costs and water
savings for the period 2006 to 2010. The estimated costs and water savings are prepared at
the program level and intended for general understanding of each measure. Actual costs and
water savings will likely vary. Estimated total program cost is$4,865,000 for the period 2006 to
2010, including $4,000,000 for the DistricYs water main replacement. Thus, DMM program
estimated costs excluding the main replacement will be$865,000 for the period 2006 to 2010.
The DMM with the highest cost is anticipated to be $230,000 for funding the conservation
coordinator positions. A conservative estimate of total DMM program water savings is 384 AF
for the period 2006 to 2010. However, water savings were generally only included for the year
in which the measure was initiated. Most demand management measures produce water
savings duration of greater than one year, thus cumulative DMM water savings will tend to be
higher.
Table 6-28 also summarizes the cost effectiveness for the demand management program in
terms of the estimated total cost of the programs divided by the estimated total number of acre-
feet of water saved. The estimated cost of District demand management measures per acre-
feet of water saved is $12,669.
TABLE 6-28
DEMAND MANAGEMENT PROGRAM ESTIMATED COSTS AND
WATER SAVINGS 2006 -2010
Total Water Cost Per AF
BMP Total Cost($) Saved (AF) Saved ($/AF)
SFR/MFR Water Surveys 50,000 4.4 11 364
Residential Retrofit 100,000 8.4 11,905
Systemwide Audits & Leak Det 4,000,000 340 11,765
Commodity Rates and Metering 0 0 0
Lar�e Landscape Programs 31,000 6.6 4,697
High Efficiency Washing Mach. 58,000 2.9 19,741
Public Relations a 170,000 0 0
School Education 8 64,000 0 0
CII Conservation 102,000 14.3 7,133
Wholesale Agencies 0 0 0
Conservation Pricing ° 0 0 0
Conservation Coordinator ° 230,000 0 0
WW Prohibition a 30,000 0 0
Residential ULFT 30,000 7.2 4,167
Total 4,865,000 384 12,669
Notes:
(a) Not estimated per CUWCC
(b) District does not purchase water from wholesalers and does not provide water as a wholesaler.
(c) Conservation coordinator implements all of the BMPs,thus water savings quantified in other BMPs.
Final STPUD UWMP Update Page 6-30
g:lprqects1200610695012-south tahoe uwmplreportlfinalWxmp repat-v3.doc
Kennedy/Jenks Consultants
References
American Water Works Association. 1993. Water Conservation Guidebook. Prepared by
Pacific Northwest Section.
American Water Works Association Research Foundation. 1999. Residential End Uses of
Water.
Ayres, R.S. and D.W. Westcott. 1976. Water Quality for Agriculture, Irrigation and Drainage,
Paper 29.
Bruvold, William H. and Patrick R. Mitchell. 1993. "Evaluating the Effect of Residential Water
Audits". In AWWA's Journal AWWA, vol. 85, No. 8, page 79.
State of California. California Code of Regulations._Domestic Water Quality and Monitoring."
Title 22, Div. 4, Chapter 15, Section 64400.
State of California. Water Code. Division 6, Part 2.6, Sections 10610 to 10650.
State of California. California Code of Regulations. "Water Recycling Criteria." Title 22, Division
4, Chapter 3. Environmental Health. Section 60301.
State of California. Reclamation Criteria. California Code of Regulations, Title 22, Division 4.
Environmental Health, Chapter 3. (Proposed).
State of California. 1994. California Code of Regulations, Title 22, Chapter 3, Initial Statement
of Reasons, Groundwater Recharge Regulations, Reclamation Criteria.
State of California Department of Health Services. 1999. California Department of Health
Services Drinking Water Field Operations Branch Annual Inspection Report.
State of California Department of Water Resources (DWR). 1994. Bulletin 166-4, Urban Water
Use in California.
State of California DWR. 1991. Urban Drouqht Guidebook, Updated Edition.
State of California DWR. 1989. Water Plan: BenefiUCost Analysis Software for Water
Manaqement Planning. Volume 11, Water Conservation Assumptions.
State of California DWR. 1987. Landscape Water Management Handbook.
State of California DWR. 1984. Water Conservation in California.
California Urban Water Conservation Council. 2005. Memorandum of UnderstandinQ ReAarding
Urban Water Conservation in California.
Final STPUD UWMP Update Page Reference-i
g:brojecls�200610695012-south tahoe uwmp4epallfinalWwmp reporl-v3.doc
Kennedy/Jenks Consultants
California Urban Water Conservation Council. 2003. BMP Costs and Savings Study. First
Partial Revision.
California Urban Water Conservation Councit. 1996. Guidelines to Conduct Cost-Effectiveness
Analvsis of Best Management Practices for Urban Water Conservation. Prepared by
David Pekelney et.al.
Deoreo, William B., et. al. 2001. "Retrofit Realities". In AVWVA's Journal A1NWA, vol. 93, No. 3,
page 58.
Grigg, Neil S. 1996. Water Resources Management— Principles Requlations and Cases.
Hawn, Joellyn. 1997. Conserving Water Through Landscape Assessments. In AWWA's
Opflow•
Maddaus, William. 1987. Water Conservation. American Water Works Association.
Metcalf and Eddy. 1991. Wastewater Engineerinq—Treatment, Disposal, Reuse.
Nelson, John O. 1992. Water Audit Encourages Residents to Reduce Consumption. In
AWWA's Journal AWWA, vol. 84, No. 10, page 59.
Rocky Mountain Institute. 1988. Water-Efficient Technologies for the Urban/Residential Sector.
South Tahoe Public Utilities District. 2003. Draft Recycled Water Master Plan. Prepared by
Kennedy/Jenks Consultants.
South Tahoe Public Utilities District. 2000. MTBE Water System Impacts. Prepared by Boyle
Engineering.
South Tahoe Public Utilities District. 1988. Operation and Maintenance Manual, volume III,
Harvey Place Dam and Irrigation Works.
Sykes, Richard, et. al. 1999. "Monitoring and Managing Unaccounted for Water." In
Proceedinqs of the International Svmposium on Efficient Water Use in Urban Areas.
United Nations Environment Programs, International Environmental Technology Center.
IETC Report 9.
Tahoe Regional Planning Agency. 2002. 2001 Threshold Evaluation Report.
Texas Water Development Board. 2004. Water Conservation Best Management Practices
Guide. Report 362. Water Conservation Implementation Task Force.
Trussell, R. Rhodes. 2001. "Endocrine Disruptors and the Water Industry." In Journal American
Water Works Association. February.
United States General Accounting Office. 2000. Water-Efficient Plumbing Fixtures Reduce
Water Consumption and Wastewater Flows. Report to Congressional Requestors.
GAO/RCED-00-232.
Final STPUD UWMP Update Page Reference-ii
g.brqecls12006`A695012-south lahoe uwmpYeportlfmalWwmp reporl-v3.doc
Kennedy/Jenks Consultants
U.S. Environmental Protection Agency. 2001. General Perchlorate information obtained online
at USEPA Office of Ground Water and Drinking Water. Available:
http://www.epa.gov/ogwdw/ccl/perchlor/perchlo.html.
United States Environmental Protection Agency. 2000. Water Conservation Plan Guidelines.
Copy obtained via the USEPA internet site.
Vickers, Amy. 2000. Handbook of Water Use and Conservation.
Western Regional Climate Center(WRCC). 2006. Monthly Climate Summary and Temperature
Summary obtained via www.wrcc.dri.ed
Final STPUD UWMP Update Page Reference-iii
giprajecls12006b69W 12-souM fahos uwmpYeporllfinalWwmp reporl-v3.doc
Appendix A
Definitions for Selected Abbreviations and Terminology
APPENDIX A
DEFINITIONS FOR SELECTED ACRONYMS AND TERMINOLOGY
Provided below are definitions of selected acronyms and terms used throughout this document.
acre-foot(AF). The amount of water needed to cover an acre one foot deep (325,900 gallons).
An acre-foot can support the annual indoor and outdoor needs of between one and two
households per year, and, on average, 3 acre-feet are needed to irrigate 1 acre of farmland;
enough to cover a football field 1 foot deep.
AFY. Acre-feet per year.
appropriation. The right to withdraw water from its source.
aquifer. A geologic formation of sand, rock and gravel through which water can pass and which
can store, transmit and yield significant quantities of water to wells and springs.
audit(end-use). A systematic accounting of water uses by end users (residential, commercial,
or industrial), often used to identify potential areas for water reduction, conservation, or
efficiency improvement.
audit(system). A systematic accounting of water throughout the production, transmission, and
distribution facilities of the system.
available supplv. The maximum amount of reliable water supply, including surface water,
groundwater, and purchases under secure contracts.
average-day demand. A water system's average daily use based on total annual water
production (total annual gallons or cubic feet divided by 365); multiple years can be used to
account for yearly variations.
avoided cost. The savings associated with undertaking a given activity (such as demand
management) instead of an alternative means of achieving the same results (such as adding
supply); can be used to establish the least-cost means of achieving a specified goal. Can be
measured in terms of incremental cost.
AWWA. American Water Works Association
baseline. An established value or trend used fo�comparison when conditions are altered, as in
the introduction of water conservation measures.
beneficial use. A use of water resources that benefits people or nature. State law may define
beneficial use.
benefit-cost analysis. A comparison of total benefits to total costs, usually expressed in
monetary terms, used to measure efficiency and evaluate alternatives. See also cost-
effectiveness and avoided-cost.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix a.doc
BAT. Best available technology
best manaqement practice (BMP). A measure or activity that is beneficial, empirically proven,
cost-effective, and widely accepted in the professional community.
block. A quantity of water for which a price per unit of water(or billing rate) is established.
budget (water-use). An accounting of total water use or projected water use for a given location
or activity.
cfs. Cubic feet per second
CMWD. Calleguas Municipal Water District, Thousand Oaks, California.
capital facilities. Physical facilities used in the production, transmission, and distribution of
water.
commodity charae. See variable charge.
community water system. According to the SDWA, a drinking water conveyance system serving
at least 15 service connections used by year-round residents of the area served by the system
or regularly serving at least 25 year-round residents.
conservation (water). Any beneficial reduction in water losses, waste, or use.
conservation pricinq. Water rate structures that help achieve beneficial reductions in water
usage. See nonpromotional rates.
consumptive use. Use that permanently withdraws water from its source.
cost-effectiveness. A comparison of costs required for achieving the same benefit by different
means. Costs are usually expressed in dollars, but benefits can be expressed in another unit
(such as a quantity of water). See net benefits.
customer class. A group of customers (residential, commercial, industrial, wholesale, and so on)
defined by similar costs of service or patterns of water usage.
decreasing-block(or declining-block) rate. A pricing structure for which the dollar amount
charged per unit of water(such as dollars per gallon) decreases with the amount water usage.
DMM. Demand management measure
DSM. Demand side management
demand forecast. A projection of future demand that can be made on a systemwide or
customer-class basis.
demand mana eq ment. Measures, practices, or incentives deployed by water utilities to
permanently reduce the level or change the pattern of demand for a utility service.
demographic. Having to do with population or socioeconomic conditions.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix a.doc
DHS. State of California Department of Health Services.
discount rate. A percentage that is used to adjust a forecast of expenditures to account for the
time value of money or opportunity costs; it can be based on the utility's cost of capital.
distribution facilities. Pipes, treatment, storage and other facilities used to distribute drinking
water to end-users.
drought. A sustained period of inadequate or subnormal precipitation that can lead to water
supply shortages, as well as increased water usage.
end use. Fixtures, appliances, and activities that use water.
end user. Residential, commercial, industrial, governmental, or institutional water consumer.
escalation rate. A percentage that is used to adjust a forecast of expenditures to account for the
increasing value of a good or service over time (apart from the discount rate and inflationary
effects).
evapotranspiration. Water losses from the surface of soils and plants.
fixed charqe. The portion of a water bill that does not vary with water usage.
fixed costs. Costs associated with water services that do not vary with the amount of water
produced or sold.
qpcd. Gallons per capita per day
gpd. Gallons per day
gqd/ft. Gallons per day per foot
gpd/ft2. Gallons per day per square foot
g�f. Gallons per flush
qpm. Gallons per minute
qraywater. Reuse, generally without treatment, of domestic type wastewater for toilet flushing,
garden irrigation and other nonpotable uses. Excludes water from toilets, kitchen sinks,
dishwashers, or water used for washing diapers.
qroundwater. Water that occurs beneath the land surface and fills partially or wholly pore
spaces of the alluvium, soil or rock formation in which it is situated. Does not include water
produced with oil in the production of oil and gas or in a bona fide mining operation.
groundwater basin. A groundwater reservoir defined by all the overlying land surface and the
underlying aquifers that contain water stored in the reservoir. Boundaries of successively
deeper aquifers may differ and make it difficult to define the limits of the basin.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix a.doc
groundwater overdraft. The condition of a groundwater basin in which the amount of water
withdrawn by pumping exceeds the amount of water that recharges the basin over a period of
years during which water supply conditions approximate average.
groundwater recharae. The action of increasing groundwater storage by natural conditions or by
human activity.
groundwater table. The upper surface of the zone of saturation (all pores of subsoil filled with
water), except where the surface if formed by an impermeable body.
imported water. Water that has originated from one hydrologic region and is transferred to
another hydrologic region.
increasinq-block (or inclining-block) rate. A pricing structure for which the dollar amount charged
per unit of water(such as dollars per gallon) increases with the amount water usage.
incremental cost. The additional cost associated with adding an increment of capacity.
instream flow. River and stream waters that maintain stream quality, aquatic life, and
recreational opportunities.
integrated resource qlanninq. An open and participatory planning process emphasizing least-
cost principles and a balanced consideration of supply and demand management options for
meeting water needs.
investor-owned utilitv. A private utility owned by investors and typically regulated by a state
public utility commission.
irrigation schedulinq. An automated method for optimizing outdoor water use by matching the
watering schedule to plant needs.
large-volume user. A water customer, usually industrial or wholesale, whose usage is
substantial relative to other users; large-volume users may present unique peaking or other
demand characteristics.
leak detection. Methods for identifying water leakage in pipes and fittings.
life span. The expected useful life of a supply-side or demand-side project, measure, or
practice. (The life span may not be identical to useful life for tax purposes.)
load mana_.eq ment. Methods for managing levels and patterns of usage in order to optimize
system resources and facilities.
losses (water). Metered source water less revenue-producing water and authorized unmetered
water uses.
low water-use landscaping. Use of plant materials that are appropriate to an area's climate and
growing conditions (usually native and adaptive plants). See also xeriscape.
market penetration. The extent to which an activity or measure is actually implemented
compared to all potential uses or markets.
g:\projects�2006\0695012-south tahoe uwmp\report\draft\appendix a.doc
marginal-cost pricinq. A method of rate design where prices reflect the costs associated with
producing the next increment of supply.
master meterinq. A large meter at a point of distribution to multiple uses or users that could be
further submetered. Includes metered wholesale sales.
maximum-day demand. Total production for the water system on its highest day of production
during a year.
MOU. Memorandum of understanding
meter. An instrument for measuring and recording water volume.
MWDSC. Metropolitan Water District of Southern California, Los Angeles, California.
MGD. Million gallons per day
mixed-use meter. A meter measuring water use for more than one type of end use (such as
indoor and outdoor use).
needle peaks. Persistent levels of peak demand that drive the capacity needs of a water system
despite reductions in averaqe demand.
net benefits. The numerical difference between total benefits and total costs, both of which must
be expressed in the same unit (usually dollars). See cost-effectiveness.
net present value. The present value of benefits less the present value of costs.
nominal doltars. Forecast dollars that are not adjusted for inflation.
nonaccount water. Metered source water less metered water sales.
nonconsumptive use. Water withdrawn and returned to the source.
nonpromotional rates. Rates that do not encourage additional consumption by water users.
nonresidential customer. A commercial or industrial utility customer.
normalization. Adjustment of a variable to a "normal" level based on averaging over an
accepted period of time; used in forecasting.
opportunity cost. The value of a foregone opportunity that cannot be pursued because
resources are taken up by a chosen activity.
peak demand. The highest point of total water usage experienced by a system, measured on an
hourly and on a daily basis.
per-capita use. Total use divided by the total population served.
per-capita residential use. Residential use divided by the total population served.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft�appendix a.doc
precipitation rate (sprinkling). The surface application rate for landscape watering, usually
expressed in inches per hour.
present value. Future expenditures expressed in current dollars by adjusting for a discount rate
that accounts for financing costs.
pressure regulator. A post-meter device used to limit water pressure.
price elasticity of demand. A measure of the responsiveness of water usage to changes in price;
measured by the percentage change in usage divided by the percentage change in price.
primary treatment. Removing solids and floating matter from wastewater using screening,
skimming and sedimentation (settling by gravity).
rationinq. Mandatory water-use restrictions sometimes used under drought or other emergency
conditions.
raw water. Untreated water.
real dollars. Forecast dollars that are adjusted for inflation.
recycled water. Wastewater that becomes suitable for a specific beneficial use as a result of
treatment. Legislation in 1991 legally equates the term recycled water to reclaimed water.
retrofit. Replacement of parts in an existing plumbing fixture or water-using appliance in order to
improve its operational e�ciency.
revenue-producing water. Water metered and sold.
reuse (water). Beneficial use of treated wastewater.
Safe Drinking Water Act(SDWA). Federal drinking water quality legislation administered by the
U.S. Environmental Protection Agency (EPA)through state primacy agencies; amended in
1996.
safe yield. The maximum reliable amount that can be withdrawn from a source without
compromising quality or quantity, as defined by hydrological studies; can be based on
acceptable withdrawals during a critical supply period or drought with a specific probability of
occurrence.
SPWRF. City of Santa Paula Water Reclamation Facility
seasonal rate. A pricing structure for which the dollar amount charged per unit of water(such as
dollars per gallon) varies by season of use; higher rates usually are charged in the season of
peak demand.
secondary treatment. The biological portion of wastewater treatment which uses the activated
sludge process to further clean wastewater after primary treatment. Generally, a level of
treatment that produces 85 percent removal efficiencies for biological oxygen demand and
suspended solids. Usually carried out through the use of trickling filters or by the activated
sludge process.
g:\projects�2006\0695012- south tahoe uwmp\report\draft\appendix a.doc
sensitivity analysis. An analysis of alternative results based on variations in assumptions; a
"what if'analysis.
service territorv. The geographic area served by a water utility.
source-of-supqly. Facilities used to extract and/or store raw water prior to transmission and
distribution.
source meter. A meter used to record water withdrawn from a surface water or groundwater
source, or purchased from a wholesale supplier.
State Revolving Fund (SRF). State loan funds for water utilities established under the Safe
Drinking Water Act.
supplv management. Measures deployed by the utility that improve the efficiency of production,
transmission, and distribution facilities.
submeterinq. Metering for units comprising a larger service connection, such as apartments in a
multifamily building.
surcharqe. A special charge on a water bill used to send customers a specific pricing signal and
recover costs associated with a particular activity.
system (water). A series of interconnected conveyance facilities owned and operated by a
drinking water supplier; some utilities operate multiple water systems.
take-or-pay. A contract provision obligating a purchaser to pay for a commodity whether or not
delivery is taken.
tariff. The schedule of a utility's rates and charges.
tertiarv treatment. The treatment of waste water beyond the secondary or biological stage.
Normally implies the removal of nutrients, such as phosphorous and nitrogen, and a high
percentage of suspended solids.
toilet tank displacement device. A plastic bag or dam installed in a toilet tank to reduce flush
volume. Considered effective only for fixtures using more than 3.5 gallons per flush.
toilet flapper. Valve in the toilet tank that controls flushing.
transfers (water). Exchange of water among willing buyers and sellers.
transmission facilities. Pipes used to transport raw or treated water to distribution facilities.
treated water. Water treated to meet drinking water standards.
ultra-low-flush toilet(ULFT). A toilet that uses not more than 1.6 gallons per flush.
unaccounted-for water. The amount of nonaccount water less known or estimated losses and
leaks.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix a.doc
�
uniform rate. A pricing structure for which the dollar amount charged per unit of water(such as
dollars per gallon) does not vary with the amount of water usage.
USBR. United States Bureau of Reclamation
USEPA. United States Environmental Protection Agency
UWCD. United Water Conservation District, Santa Paula, California
universal meterinQ. Metering of all water-service connections.
unmetered water. Water delivered but not measured for accounting and billing purposes.
user class. See customer class.
variable charqe. The portion of a water bill that varies with water usage; also known as a
commodity charge.
variable cost. Costs associated with water service that vary with the amount of water produced
or sold.
water riqht. A property right or legal claim to withdraw/divert a specified amount of water in a
specified time frame for a beneficial use.
wastewater. Water that has been previously used by a municipality, industry, or agriculture and
has suffered a loss of quality as a result.
waste water treatment plant(VWVTP). A municipal or public service district which provides
treatment of collected waste water.
watershed. A regional land area, defined by topography, soil, and drainage characteristics,
within which raw waters collect and replenish supplies.
weather-adiusted. Water demand, revenues, or other variables adjusted to a "normal"weather
year; also known as weather normalization.
wholesale water. Water purchased or sold for resale purposes.
Xeriscape. Landscaping that involves seven principles: proper planning and design; soil
analysis and improvement; practical turf areas; appropriate plant selection; efficient irrigation;
mulching; and appropriate maintenance.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix a.doc
Appendix B
Urban Water Management Planning Act
APPENDIX B
URBAN WATER MANAGEMENT PLANNING ACT
Established: AB 797, Klehs, 1983
Amended: AB 2661, Klehs, 1990
AB 11X, Filante, 1991
AB 1869, Speier, 1991
AB 892, Frazee, 1993
SB 1017, McCorquodale, 1994
AB 2853, Cortese, 1994
AB 1845, Cortese, 1995
SB 1011, Polanco, 1995
SB 553, Kelley, 2000
CALIFORNIA WATER CODE DIVISION 6
PART 2.6. URBAN WATER MANAGEMENT PLANNING
CHAPTER 1. GENERAL DECLARATION AND POLICY
10610. This part shall be known and may be cited as the "Urban Water Management
Planning Act."
10610.2. The Legislature finds and declares as follows:
(a) The waters of the state are a limited and renewable resource subject to ever
increasing demands.
(b) The conservation and efficient use of urban water supplies are of statewide
concern; however, the planning for that use and the implementation of those
plans can best be accomplished at the local level.
(c) A long-term, reliable supply of water is essential to protect the productivity of
California's businesses and economic climate.
(d) As part of its long-range planning activities, every urban water supplier should
make every effort to ensure the appropriate level of reliability in its water service
sufficient to meet the needs of its various categories of customers during normal,
dry, and multiple dry water years.
(e) This part is intended to provide assistance to water agencies in carrying out
their long-term resource planning responsibilities to ensure adequate water
supplies to meet the needs of both existing customers and future demands for
water.
10610.4. The Legislature finds and declares that it is the policy of the state as follows:
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix c.doc
S
(a)The management of urban water demands and e�cient use of water shall be actively
pursued to protect both the people of the state and their water resources.
(b) The management of urban water demands and efficient use of urban water
supplies shall be a guiding criterion in public decisions.
CHAPTER 2. DEFINITIONS
10611. Unless the context otherwise requires, the definitions of this chapter govern the
construction of this part.
10611.5. "Demand management" means those water conservation measures,
programs, and incentives that prevent the waste of water and promote the reasonable
and efficient use and reuse of available supplies.
10612. "Customer" means a purchaser of water from a water supplier who uses the
water for municipal purposes, including residential, commercial, governmental, and
industrial uses.
10613. "Efficient use" means those management measures that result in the most
effective use of water so as to prevent its waste or unreasonable use or unreasonable
method of use.
10614. "Person" means any individual, firm, association, organization, partnership,
business, trust, corporation, company, public agency, or any agency of such an entity.
10615. "Plan" means an urban water management plan prepared pursuant to this part.
A plan shall describe and evaluate sources of supply, reasonable and practical efficient
uses, reclamation and demand management activities. The components of the plan
may vary according to an individual community or area's characteristics and its
capabilities to efficiently use and conserve water. The plan shall address measures for
residential, commercial, governmental, and industrial water demand management as
set forth in Article 2 (commencing with Section 10630) of Chapter 3. In addition, a
strategy and time schedule for implementation shall be included in the plan.
10616. "Public agency" means any board, commission, county, city and county, city,
regional agency, district, or other public entity.
10616.5. "Recycled water" means the reclamation and reuse of wastewater for
beneficial use.
10617. "Urban water supplier" means a supplier, either publicly or privately owned,
providing water for municipal purposes either directly or indirectly to more than 3,000
customers or supplying more than 3,000 acre-feet of water annually. An urban water
supplier includes a supplier or contractor for water, regardless of the basis of right,
which distributes or sells for ultimate resale to customers. This part applies only to water
supplied from public water systems subject to Chapter 7 (commencing with Section
4010) of Part 1 of Division 5 of the Health and Safety Code.
g:\projects�2006\0695012 -south tahoe uwmp\�eport\draft�appendix c.doc
CHAPTER 3. URBAN WATER MANAGEMENT PLANS
Article 1. General Provisions
10620.
(a) Every urban water supplier shall prepare and adopt an urban water management
plan in the manner set forth in Article 3 (commencing with Section 10640).
(b) Every person that becomes an urban water supplier after December 31,
1984, shall adopt an urban water management plan within one year after it has
become an urban water supplier.
c) An urban water supplier indirectly providing water shall not include planning
elements in its water management plan as provided in Article 2 (commencing
with Section 10630) that would be applicable to urban water suppliers or public
agencies directly providing water, or to their customers, without the consent of
those suppliers or public agencies.
(d)
(1)An urban water supplier may satisfy the requirements of this part by
participation in areawide, regional, watershed, or basinwide urban water
management planning where those plans will reduce preparation costs and
contribute to the achievement of conservation and efficient water use.
(2) Each urban water supplier shall coordinate the preparation of its plan
with other appropriate agencies in the area, including other water
suppliers that share a common source, water management agencies, and
relevant public agencies,to the extent practicable.
(e) The urban water supplier may prepare the plan with its own staff, by contract,
or in cooperation with other governmental agencies.
10621.
(a) Each urban water supplier shall update its plan at least once every five years on or
before December 31, in years ending in five and zero.
(b) The amendments to, or changes in, the plan shall be adopted and filed in the
manner set forth in Article 3 (commencing with Section 10640).
Article 2. Contents of Plans
10630. It is the intention of the Legislature, in enacting this part, to permit levels of water
management planning commensurate with the numbers of customers served and the
volume of water supplied.
10631. A plan shall be adopted in accordance with this chapter and shall do all of the
following:
(a) Describe the service area of the supplier, including current and projected
population, climate, and other demographic factors affecting the supplier's water
g:\projects�2006\0695012 -south tahoe uwmp\report\draft�appendix c.doc
management pianning. The projected population estimates shall be based upon
data from the state, regional, or local service agency population projections
within the service area of the urban water supplier and shall be in five-year
increments to 20 years or as far as data is available.
(b) Identify and quantify, to the extent practicable, the existing and planned
sources of water available to the supplier over the same five-year increments as
described in subdivision (a).
(c) Describe the reliabiliry of the water supply and vulnerability to seasonal or
climatic shortage, to the extent practicable, and provide data for each of the
following:
(1) An average water year.
(2) A single dry water year.
(3) Multiple dry water years.
For any water source that may not be available at a consistent level of use, given
specific legal, environmental, water quality, or climatic factors, describe plans to
replace that source with alternative sources or water demand management
measures, to the extent practicable.
(d) Describe the opportunities for exchanges or transfers of water on a short-term
or long-term basis.
(e)
(1) Quantify, to the extent records are available, past and current water use, over
the same five-year increments described in subdivision (a), and projected water
use, identifying the uses among water use sectors including, but not necessarity
limited to, all of the following uses:
(A) Single-family residential.
(B) Multifamily.
(C) Commercial.
(D) Industrial.
(E) Institutional and governmental.
(F) Landscape.
(G) Sales to other agencies.
(H) Saline water intrusion barriers, groundwater recharge, or
conjunctive use, or any combination thereof.
(I) Agricultural.
(2) The water use projections shall be in the same five-year increments as
described in subdivision (a).
(� Provide a description of the supplier's water demand management measures.
This description shall include all of the following:
(1)A description of each water demand management measure that is currently
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix c.doc
being implemented, or scheduled for implementation, including the steps
necessary to implement any proposed measures, including, but not limited to, all
of the following:
(A) Water survey programs for single-family residential and multifamily
residential customers.
(B) Residential plumbing retrofit.
(C) System water audits, leak detection, and repair.
(D) Metering with commodity rates for all new connections and retrofit of
existing connections.
(E) Large landscape conservation programs and incentives.
(F) High-efficiency washing machine rebate programs.
(G) Public information programs.
(H) School education programs.
(I) Conservation programs for commercial, industrial, and institutional
accounts.
(J) Wholesale agency programs.
(K) Conservation pricing.
(L)Water conservation coordinator.
(M)Water waste prohibition.
(N) Residential ultra-low-flush toilet replacement programs.
(2) A schedule of implementation for all water demand management
measures proposed or described in the plan.
(3) A description of the methods, if any, that the supplier will use to
evaluate the effectiveness of water demand management measures
implemented or described under the plan.
(4) An estimate, if available, of existing conservation savings on water use
within the supplier's service area, and the effect of such savings on the
supplier's ability to further reduce demand.
(g) An evaluation of each water demand management measure listed in
paragraph (1) of subdivision (fl that is not currently being implemented or
scheduled for implementation. In the course of the evaluation, first consideration
shall be given to water demand management measures, or combination of
measures, which offer lower incremental costs than expanded or additional water
supplies. This evaluation shall do all of the following:
(1) Take into account economic and noneconomic factors, including
environmental, social, health, customer impact, and technological factors.
(2) Include a cost-benefit analysis, identifying total benefits and total costs.
(3) Include a description of funding available to implement any planned
water supply project that would provide water at a higher unit cost.
(4) Include a description of the water supplier's legal authority to
implement
g:\projects�2006\0695012-south tahoe uwmp\report\draft�appendix c.doc
the measure and efforts to work with other relevant agencies to ensure the
implementation of the measure and to share the cost of implementation.
(h) Urban water suppliers that are members of the California Urban Water
Conservation Council and submit annual reports to the council in accordance
with the "Memorandum of Understanding Regarding Urban Water Conservation
in California," dated September 1991, may submit the annual reports identifying
water demand management measures currently being implemented, or
scheduled for implementation, to satisfy the requirements of subdivisions (fl and
�9)�
10632. The plan shall provide an urban water shortage contingency analysis which
includes each of the following elements which are within the authority of the urban water
supplier:
,
(a) Stages of action to be undertaken by the urban water supplier in response to water
supply shortages, including up to a 50 percent reduction in water supply, and an outline
of specific water supply conditions which are applicable to each stage.
(b) An estimate of the minimum water supply available during each of the next
three water years based on the driest three-year historic sequence for the
agency's water supply.
(c) Actions to be undertaken by the urban water supplier to prepare for, and
implement during, a catastrophic interruption of water supplies including, but not
limited to, a regional power outage, an earthquake, or other disaster.
(d) Additional, mandatory prohibitions against specific water use practices during
water shortages, including, but not limited to, prohibiting the use of potable water
for street cleaning.
(e) Consumption reduction methods in the most restrictive stages. Each urban
water supplier may use any type of consumption reduction methods in its water
shortage contingency analysis that would reduce water use, are appropriate for
its area, and have the ability to achieve a water use reduction consistent with up
to a 50 percent reduction in water supply.
(fl Penalties or charges for excessive use, where applicable.
(g) An analysis of the impacts of each of the actions and conditions described in
subdivisions (a) to (fl, inclusive, on the revenues and expenditures of the urban
water supplier, and proposed measures to overcome those impacts, such as the
development of reserves and rate adjustments.
(h) A draft water shortage contingency resolution or ordinance.
(i) A mechanism for determining actual reductions in water use pursuant to the
urban water shortage contingency analysis.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix c.doc
10633. The plan shali provide, to the extent available, information on recycled water and
its potential for use as a water source in the service area of the urban water supplier. To
the extent practicable, the preparation of the plan shall be coordinated with local water,
wastewater, groundwater, and planning agencies and shall include all of the following:
(a)A description of the wastewater collection and treatment systems in the supplier's
senrice area, including a quantification of the amount of wastewater collected and
treated and the methods of wastewater disposal.
(b) A description of the recycled water currently being used in the supplier's
service area, including, but not limited to, the type, place, and quantity of use.
(c) A description and quantification of the potential uses of recycled water,
including, but not limited to, agricultural irrigation, landscape irrigation, wildlife
habitat enhancement, wetlands, industrial reuse, groundwater recharge, and
other appropriate uses, and a determination with regard to the technical and
i economic feasibility of serving those uses.
(d) The projected use of recycled water within the supplier's service area at the
end of 5, 10, 15, and 20 years.
(e) A description of actions, including financial incentives, which may be taken to
encourage the use of recycled water, and the projected results of these actions in
terms of acre-feet of recycled water used per year.
(� A plan for optimizing the use of recycled water in the supplier's service area,
including actions to facilitate the installation of dual distribution systems and to
promote recirculating uses.
Article 2.5 Water Service Reliability
10635.
(a) Every urban water supplier shall include, as part of its urban water management
plan, an assessment of the reliability of its water service to its customers during normal,
dry, and multiple dry water years. This water supply and demand assessment shall
compare the total water supp�y sources available to the water supplier with the total
projected water use over the next 20 years, in five-year increments, for a normal water
year, a single dry water year, and multiple dry water years. The water service reliability
assessment shall be based upon the information compiled pursuant to Section 10631,
including available data from the state, regional, or local agency population projections
within the service area of the urban water supplier.
(b) The urban water supplier shall provide that portion of its urban water
management plan prepared pursuant to this article to any city or county within
which it provides water supplies within 60 days of the submission of its urban
water management plan.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix c.doc
(c) Nothing in this article is intended to create a right or entitlement to water
service or any specific level of water service.
(d) Nothing in this article is intended to change existing law concerning an urban
water supplier's obligation to provide water service to its existing customers or to
any future, potential customers.
I Article 3.Adoption and Implementation of Plans
; 10640. Every urban water supplier required to prepare a plan pursuant to this part shall
prepare its plan pursuant to Article 2 (commencing with Section 10630).
The supplier shall likewise periodically review the plan as required by Section 10621,
and any amendments or changes required as a result of that review shall be adopted
pursuant to this article.
10641. An urban water supplier required to prepare a plan may consult with, and obtain
comments from, any public agency or state agency or any person who has special
expertise with respect to water demand management methods and techniques.
10642. Each urban water supplier shall encourage the active involvement of diverse
social, cultural, and economic elements of the population within the service area prior to
and during the preparation of the plan. Prior to adopting a plan, the urban water supplier
shall make the plan available for public inspection and shall hold a public hearing
thereon. Prior to the hearing, notice of the time and place of hearing shall be published
within the jurisdiction of the publicly owned water supplier pursuant to Section 6066 of -
the Government Code. A privately owned water supplier shall provide an equivalent
notice within its service area. After the hearing, the plan shall be adopted as prepared or
as modified after the hearing.
10643. An urban water supplier shall implement its plan adopted pursuant to this
chapter in accordance with the schedule set forth in its plan.
10644.
(a)An urban water supplier shall file with the department a copy of its plan no later than
30 days after adoption. Copies of amendments or changes to the plans shall be filed
with the department within 30 days after adoption.
(b) The department shall prepare and submit to the Legislature, on or before
December 31, in the years ending in six and one, a report summarizing the
status of the plans adopted pursuant to this part. The report prepared by the
department shall identify the outstanding elements of individual plans. The
department shall provide a copy of the report to each urban water supplier that
has filed its plan with the department. The department shall also prepare reports
and provide data for any legislative hearings designed to consider the
effectiveness of plans submitted pursuant to this part.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft�appendix c.doc
10645. Not later than 30 days after filing a copy of its plan with the department, the
urban water supplier and the department shall make the plan available for public review
during normal business hours.
CHAPTER 4. MISCELLANEOUS PROVISIONS
; 10650. Any actions or proceedings to attack, review, set aside, void, or annul the acts or
decisions of an urban water supplier on the grounds of noncompliance with this part
shall be commenced as follows:
(a)An action or proceeding alleging failure to adopt a plan shall be commenced within
18 months after that adoption is required by this part.
(b) Any action or proceeding alleging that a plan, or action taken pursuant to the
plan, does not comply with this part shall be commenced within 90 days after
filing of the plan or amendment thereto pursuant to Section 10644 or the taking of
that action.
10651. In any action or proceeding to attack, review, set aside, void, or annul a plan, or
an action taken pursuant to the plan by an urban water supplier on the grounds of
noncompliance with this part, the inquiry shall extend only to whether there was a
prejudicial abuse of discretion. Abuse of discretion is established if the supplier has not
proceeded in a manner required by law or if the action by the water supplier is not
supported by substantial evidence.
10652. The California Environmental Quality Act (Division 13 (commencing with Section
21000) of the Public Resources Code) does not apply to the preparation and adoption
of plans pursuant to this part or to the implementation of actions taken pursuant to
Section 10632. Nothing in this part shall be interpreted as exempting from the California
Environmental Quality Act any project that would significantly affect water supplies for
fish and wildlife, or any project for implementation of the plan, other than projects
implementing Section 10632, or any project for expanded or additional water supplies.
10653. The adoption of a plan shall satisfy any requirements of state law, regulation, or
order, including those of the State Water Resources Control Board and the Public
Utilities Commission, for the preparation of water management plans or conservation
plans; provided, that if the State Water Resources Control Board or the Public Utilities
Commission requires additional information concerning water conservation to
implement its existing authority, nothing in this part shall be deemed to limit the board or
the commission in obtaining that information. The requirements of this part shall be
satisfied by any urban water demand management plan prepared to meet federal laws
or regulations after the effective date of this part, and which substantially meets the
requirements of this part, or by any existing urban water management plan which
includes the contents of a plan required under this part.
10654. An urban water supplier may recover in its rates the costs incurred in preparing
its plan and implementing the reasonable water conservation measures included in the
plan. Any best water management practice that is included in the plan that is identified
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix c.doc
in the "Memorandum of Understanding Regarding Urban Water Conservation in
California" is deemed to be reasonable for the purposes of this section.
10655. If any provision of this part or the application thereof to any person or
circumstances is held invalid, that invalidity shall not affect other provisions or
apptications of this part which can be given effect without the invalid provision or
i
application thereof, and to this end the provisions of this part are severable.
� 10656. An urban water supplier that does not prepare, adopt, and submit its urban
water management plan to the department in accordance with this part, is ineligible to
receive drou ht assistance from the state until the urban water m
9 anagement plan is
submitted pursuant to Article 3 (commencing with Section 10640) of Chapter 3.
SEC. 2. No appropriation is made and no reimbursement is required by this act
pursuant to Section 6 of Article XIII B of the California Constitution or Section 2231 or
2234 of the Revenue and Taxation Code because the local agency or school district has
the authority to levy service charges, fees, or assessments sufficient to pay for the
program or level of service mandated by this act.
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix c.doc
2000 Urban Water Management Plan Checklist
�
Page# Section of Law Items to address
In Plan
10620 d 2 Coordinate the re aration of its I
an with other a ro riate
� ) � ) P P P PP P
agencies, including direct and indirect suppliers, wastewater,
groundwater, and planning agencies(refer to Section 10633).
10631 (a) Provide current and projected population in 5-year increments to
20 years.
Describe the climate and other demographic factors.
10631 (b) Identify and quantify the existing and planned sources of water
available in 5-year increments to 20 years.
10631 (c) Describe the reliability of the water supply.
Describe the vulnerability of water supply to seasonal or climatic
shortage.
Describe average, single dry and multiple dry water year data.
Describe any plans to replace inconsistent water sources.
10631 (d) Describe opportunities for exchanges or transfers of water on
short-term or long-term basis.
10631 (e) (1) Quantify past and current water use in 5-year increments to 20
years.
10631 (e) (2) Identify projected water uses among water use sectors in 5-year
increments to 20 years.
10632 (a) Provide water shortage stages of action, including up to a 50
percent reduction, outlining specific water supply conditions at
each stage.
10632 (b) Provide minimum water supply estimates based on driest three-
year historic sequence.
10632(c) Provide actions a water supplier will take to prepare for a
catastrophe.
10632(d) Provide mandatory prohibitions.
10632 (e) Provide consumption reduction methods.
10632 (fl Provide penalties or charges.
10632 (g) Provide an analysis of the impacts on the water supplier
revenues and expenditures.
10632 (g) Provide measures to overcome revenue and expenditure
impacts.
10632 (h) Provide a copy of a draft water shortage contingency resolution
or ordinance.
10632 (i) Provide a mechanism for determining actual reductions in water
use.
g:\projects�2006\0695012-south tahoe uwmp\report\draft\appendix c.doc
i
i
�
' Page# Section of Law Items to address
In Plan
10633 a
Describe h
, O t e wastewater collection and treatment
systems in the supplier's service area.
Quantify the amount of wastewater collected and treated in the
supplier's service area.
Describe the methods of wastewater disposal in the supplier's
service area.
10633(b) Describe the type, place, and quantity of recycled water
currently used in the supplier's service area.
10633(c) (d) Describe and quantify potential uses of recycled water in 5-year
increments to 20 years.
Describe the technical and economic feasibility of serving
potential recycled water users.
10633(e) Describe the actions that may be taken to encourage recycled
water use.
Provide the projected acre-feet results of recycled water used
per year.
10633(fl Provide a plan for optimizing the use of recycled water in the
supplier's service area.
Provide actions to facilitate the installation of dual distribution
systems and to promote recirculating uses.
10635 (a) Provide an assessment of the reliability of the water supplier's
water service to its customers during normal, single dry, and
multiple dry water years.
Compare the total water supply sources available to the water
supplier with the total projected water use over the next 20
years, in 5-year increments(refer to 10631 (c)).
Compare normal, single dry, and multiple dry water year
projected water supply sources available to the water supplier
with the normal, single dry, multiple dry water year projected
water uses(refer to
10631 (c)).
10642 Make plan available for public inspection before its adoption.
Adopt plan as prepared or as modified after the public hearing
g:\projects�2006\0695012 -south tahoe uwmp\report\draft\appendix c.doc
f
i
Appendix C
Notice of Public Hearing and Resolution Adopting the UWMP
�
i
�
Appendix D
Water Allocation for the STPUD Service Area
{
� /� --��.s�
_ .
I �..�--���� • APPENI� IX B
General:fanager
�r SOUTH TAHOE PUBLIC UTILI7Y DISTRICT RO$E�?G_BAER
� 'FiticServica Ior i GanP4�WoNd'
SEWEA•1lSG•WATER A PU9tlC AGEHC'/
t 275 Meadow Crest Drive•Sauth Zake Tat�oe,Cafiiarnia 96150 ���E"'��s
JnAAES r„��F$
Phane(9t6)544-6aT4•Fax(9i6)5�t.os14 � ROBERT b1:,SON
M:,RY LOU MOSBACHER
CHR1S S i r.OHM
Du�E�r�,=��CE
March 10, 1994 �
Mr. Rick Angelocci
Tahoe Regional Planning Agency
Post �ffice Box 1038 .
Zephyr Cove, NV 89448 �
Re: South Shore Water Usa�e
. Dear Rick:
At our me�ting on February 24, 159� we discussed water us�e in the South Shore dr,d ho�,-�.�
usage comQared ta the amount alloca[e.d by the InterState Compact_
• Attacned is a Position Paper we have prepared for your use in reviewing the I9°•-'. Buile�:�
Season Allacations and the upcomin; Facility Plan. Tf�►e paper conciudes the propos�d w�r
allocations will provide sufficient water for the residential, commercial, public se:vice, �:a
recreadonal needs on the Zone C.
If you ne�d additional iriformation, please contact me.
Sincerely, � �
/�.C'�C,c�� ` �;..
£�Obert G. Bae}>i/�
General IvianaQerlEn�ineer
�GB/esh '
attachments •
cc: Sare, Attomey
Rick Hansen, EIP
Hydrick, Thiet, Nob[e - STPUD StafP
Att�chme_nt C
ST103822
i
�
POSITION PAPER
WATER ALLOCATTON FOR TKE •
SOUT$ TAHpE PUBLIC UTII,ITY D�STRICT
SERVICE AREA
� MARCH 2994
In 7uly 1984, tf�►e California State Water Resources Controi Board issued a Drafr Policy for
Water Allacation in the Lake Tahoe gasin, The policy was drafted because both the St�tes of
California and Nevada were using the Tnterstate Compact for water allocations within the I�:-e .
Tahoe Basin. To date the policy has not b�n finalized.
. The Interstate Compact allocated 23,QQp acre f�t far use on the.California side of the B�s-L��. •
The Draft Report suQgested the California allocation be divided betw�n public lands and pr�4:�
Iands. The pdlicy further sugaested the alloca#ions for private Iands be divided into thr� zoaes.
The threr aones sel�ted are rouQhly the boundaries of the North Tahoe Public U�itv DL�;;�c
(Zone A), Tahae City Public Utility District.(Zone B), and So�th Tahoe Public Udlity Di��c:
. (Zone C}. The zones are shown in Figure 2-1 of the report (attached). _
The proposed allocations reported irl the Drafr Policy: -
PROPUSED ALLOCATION I
USER I ACRE FEET I PERCENI'AGE I
Public Lands:
- USFS 2,938 13
State • 350 2
Private Lands *
Zone A 3,018 13
Zone B 4,201 � �8
Zone C 12,493 5� -
TOTAL 23,000 Ipp .
* It should be noted the groposed zonal allocations were based on the State Board 203 PI�-� i:�
efiect in the early 1980's, and the$aitey Land Capability System was used in the 2Q8 Plan. T�,� �
Zone C allacation was developed based on about 4,5a0 lots bein; deveioped_
The Zone C allocations includ�i water use by municipal water systems, domestic �.c �
re�reatianal systems, private well users, and golf caurses.
ST1038Z3
Table 1 summarizes the water usage in Zone C from 1974 thru 1993. In I987 the District
initiated an aggressive water conservatian pragram which inctudes a highly successful ul[ra-low
flow toilet rebate program_
Water usage in Zone C has remained about the same since I987. • �
FUTURE WATER USE
Un February 10, 1992, TRPA published a status report an the IPFS Vacant Parcrl Inventory.
In ttie El Darado South jurisdiction, there aze presently 4,2161ots above the IPFS line and 1,568
lots below the IPES line. The IPFS Iine can mave from year to year, degendin�on construction
activity and additions, deledons, redrements.io the inventory. The 1989 Water System Mas�r
Plan included a detailed evaluation of the EI Dorado Soucii SPES inventory. TEiat analysis
showed that 85.8 percent of the El Dorado So�th inventory was within District boundar�s.
Applying that same percen�e to the current El Dorado South inventory yields a counc of
anproximately 3,504 Iots above the IPES }ine within District boundaries, Therefore, it ca.� ee
assumed that there will be about 3,6�0 lots available for constructian in the fores�ble futu�.
The 1984 0.2 MGD Wastewater Treatment Facility Expansion estimate the future reside:�� -
connectians wouid use about 0_474 acre f�t ger year. The 3,500 futttre conne:dons wauld Lc�
_ 1,706 acre fe�t of water per year. Using 1989 as the hi�hest reported reiunicipal water us�e
in Zone C, plus 809.5 acre f�t for ather usage, plus 1,706 acre feet produces 2 totz water �!�;
of 10,85�.5 acre f�,t, leavin� an excess of 1,144.5 acre feet for incre:szci occunancy �.a
landscaping, erosion control projects, pubtic service prfljecLs, and recreational us�s. �
The construction of 116 single family homes requues 38.3 acre feeL
At the present rate of devetopment in the District's service azea (116 sinQle farr�,r -
residences/year), the 3,6001ot� will not be built ou[ until the year 2,024.
1993 +' 3,600 Iots = I,993;3I=2,Q24
116 homes per year
Fi?urz 1 shows the Zone C water usage from 1974 until 2024.
� ST103824
i
TASLE i
ZONE C -ANNUAL WATER USE
ANN(1AL WATER USE { ACRE FEE[') �
MUNICIPAL f
Y�R STPUD {STPUD x 0.22}a OTHER bc � TOTAL �
4
7 975 � . `�'� , �
. i976
1977
197$
7979
. 1980 .
i981
t982
7 983 5,671 �,071
- 1984
1985
i986
• . 1987 ' 6,784 1,492 737 9,013
1988 6,759 1,487 733 . g,97c�
1989 6,839 1,505 72� 9,073
i990 6,811 1.498 725 9.03L
1997 6,198 1,363 7�� g.Zg�
1992 6,53t 1,437 8i 7d 7,9oc
1993 fi,716 i,478 813d g,Z g4
� Notes:
a - S7PUD provides water service to 78aa of ihe connections in Zone C
' b - Inc(udes domestic and recreational areas not served by municipal water pucveyors,
• private wells, and Bijou and Tahoe Paradisa Gotf Courses. Does not include laicc Tahoe
Country C1ub sincz the faciiiry is owned by the State of California. -
� c - Since 1987, 63 private wetls have heQn abandoned.
These residences have 6esn connected to the STPUD system.
Average nf 9 residents per year@ 0.47 ac/f►per year reduction.
' d - Includes increased use at Siyou Golf Course.
- 5T103826
c
, N
. �
�
�
N
�
•�-
�
� ;
O
i �
I
T
j . �
1Q
i
� �
G
�
�
C
I
C^
lj,( I �
Q � I L']
`�` 1 �
. �
, • � C I C�
� N � . C.." L':
LtI N }
�, � T
t�
Q �c 1 0
� n � � .
c� �
N
- U `' I c
w
� � Tr
� I I �
N
• TO
I IC
_ • � �
I �
+ . �C
I ^
. � n
f�
O` (�
1 �
. � I � .
I � �
� C
. t�
.. � � . � � � . O O
0 0 0 0 0 0
c t . O W CJ c c�J
GUrtw �ww�.
- � ST103827
Appendix E
STPUD Policy Regarding MTBE
• SDUTH 1 AHUt F'UtiiLIC: U l!LI f Y UI�I t(!l� I .
� BOARD AGENDA lTEM
TO: BOARD OF DIRECTORS A P P E IV�1 X o
FR: Bob Baer General Manaqer
� RE: BOARD MEETiNG April 15. 1999 AGENDA 1TEM:
ACT10N ITEM N0: f CONSENT CALENDAR tTEM N�:
..:......:::.........:.:.:.:.....:::.... ... ..:.:.�.,.............. _
_... .:.... ........... ..... .....
.. . .......
..... .
..,._:::...:..........a.w.::..:.::::.�:.::::::_:.:.,.:..::r:::: . _.::......x:::,,.,.....::.:.�v....:.:._::_...:�..
� ..... . . ... .......:::.......:.::.:.......:...:-...,...,._:.:�.x......_::.:_..:......:::.� ........
ITEM-PR�JECT NAME: MTBE POLICY
REQUESTED BDARD ACTION: Adopt policY.
DISCUSSiON: After reviewingthe cansultants reqorE. staff recommends adoption of this
palicv as it is in the District`s best interest.
. Approved by Board
4/15/99
SCHEDULE: :-_
COSTS: ACCOUNT NO:
BUDGETED AMOUNT REMAINING:
ATTACHMENTS:
� CONCIJRRENCE W1TH REQUESTED ACTION: CATEGORY:
GENERAL MANAGEl2: YES � ��. �i�.rLtiNO GENERAL
CHIEF FiNANClAL OFFICER: YESY'��:.,i:.�,.J�LO WATER X
SEWER
ST064345
� SOUTH TAHOE PUBLIC UTILiTY DISTRICT
` POLfCY REGARDING METHYl. TERTiARY BUTYL ETHER (MTBE)
lt is the policy ofi the South Tahoe Public Utility District not to suppiy drinking
water containing detectable concentrations of MTBE to its customers, if
reasonable alternatives exist. To achieve this goal, the following actions will be
taken:
al When MTBE is detected in any District weii, the weEl will be placed on
stand-by status and the Board will be notified.
6) The stafF shall identify and utilize all reasonably available alternatives
to the use of any well in which MTBE has been detected.
� c? If the staff determines that the confiinued aperation of any.Disfirict
well is iikely to cause a nearby plume of MTBE to contaminate any
District well, it wi(I nattfy the Boerd and place tha# well on stand-by
status, as directed by the Baard.
d} In the event that a water shartage is imminent, and that voluntary
and mandatory conservation measures are inadequate, standby wells
, will be utilized, in accordance with the contirtgency plan, to #he
extent and for the time period necessary to pravide for customer
water demand. Apprapriate notice will be provided to the public.
e) Staff wili prepare a contingency plan and submit it to the Board far its
review to establish the priority for the utilization of walls placed on
stand-by status because of MTBE. The contingency plan shall ensure
that only wells with the fowest concentratians, if any, of MTBE ere
activated to meet emergency needs.
4/15/99
1 f_ �1
. � O� `,U, ��-� .
O�� �P� •'� _---� �
ti 4��
. �O
�� .
! �
J ' ` ,� ,
�=� .�� ,�
.!`. �V Q���^ • "
�� �p�;`�� �� L A X f •- '
�.��+�� -� �� '
J , ;1 . .
�� • � � , L'-. .
� �' r � _
� '�-,..�� 1 4 H �. �
�� �r-:,.1 .
� " } � -
. . _. } - - ;� r . -
`• ' -•��t� ' �w-i"; �
� .1 '
.� 'f r!
� � �� - �: � . '--s_i
. `1�__ � l � '::,_ �
;'��_�.. �r • -�
- •" :f' • - ... _:1�, �;� r '
�
-. •�� • . ' ,- J. �y� ' .
�` ' '' `t`.
' �.' � � .��t`1 F � {�7 �•�
�1; - sourH TaHo�
. _;- - - -
'•r: - -. ' ? .
. ,;_ •
- �
•; .
- �
�
CALIFORNiA WATER USE ZONES
' ST103S25
Appendix F
Water Shortage Operations Plan
� SOUTH TAHOE PUBLIC UTILITY DISTRICT
' . � BOARD AGENDA ITEM �
(� . , T0: BOARD OF DIRECTORS � A P F'E N��x E .
FR: Bob Baer/General Mana er and Rick H .drick/Mana er�of Water O erations
RE: B�ARD MEETING Ma 6 1999 AGENDA [TEM:
ACTION ITEM NQ: d CONSENT CALENDAR ITEM NO:
ITEM-PROJECT NAME: WATER SHORTAGE OPERATlQNS CONTINGENCY PLAN
REQUESTED BOARD ACTtON:_ Anprove Qlan
DISCUSSION: This O erations Contin enc Plan has been re ared to minimize the ossibili
: .of oaeratinq weHs with trace levels of MTBE in them_ Extreme ooerational and water conservation
measures will be utilized before a decision is made#o use MTBE tainted wells or ac uifers while
com I in with all state and federal laws for water uali and s stem reliabil' .
r� .
Approved by Board
5/6/99
SCHEDULE: Summer 1999
C�STS: StafF labor unknown ACCOUNT NO: N/A
BUDGETED AMOUNT REMAINING:
ATTACHMENTS: �Water Shorta e Contin enc Plan
, � - -------. _._-
............ ..... ........... .
tI CQNCURRENCE WITH REQUESTED ACTiON: CATEGQRY:
GENERAL MANAGER: YE NO ' GENERAt.
CHIEF FINANCIAL OFFICER: YES � c:,..G O WATER X
'�E1NER
� ST064342
( '
; �, � WATER SHORTAGE OPERATIONS CONTINGENCY PLAN
I f :0 .
Water Sho��q���1/(ain Zone, � � �M
1) Shift Gardner Mountain Zone demand to Tahoe T'aradise Zone 450
2) Begin aggressive Stage 3 water conservation program - odd/even ?
and timed irrigation watering
3) Open prv at Tata Booster back to Main Zane � 200
4) Operate Blackrock We!! 2 - may be isolated from MTBE in shallaw zone 125
. � 5) Operate Helen Well 2 - may be isolated from MTBE in shaliow zone 25p
. 6} Operate slackrock Wel1 1 - sc�eened in shaliaw zone; could move plume '4t�'��� --�
7) Operate Helen 1 - screened in shallow zone; cou(d move piume 100
8} Operate Coilege Well - Uranium exceeds the MCL, but operation 'i,100
(� is allowed by DHS for 5 days at a time, 15 days total per year
9} Begin severe Stage 4 water conservation program - outside ?
watering ban
' 10) Allow storage tanks to go to lower tevefs - loss of excess ?
emergency water
, 11) Shut off booster stations to Iow demand zones - Keller and HV zones ?
{short-term, ie. one day measure}
12} Qperate Clement Wel1 - trace MTBE introduced from air; may be able 180
to remove with carbon air filter .
13) Operate Julie Well - trace MTBE, screened in shallow zone 200
14? Operate Tata Welis 1-3 - trace MTBE; screened in shallow zone 308
15) Operate Arrowhead Well and route water to Main Zone . 400
v ,
� ST064343
�
�' �
11 Adjust Cornelian and Country Ciub prv's for max flow to Arrowhead 450 .
� 2) Ope�ate Airpart Booster Station 200 �
3) Begin aggressive Stage 3 water conservati�n program - odd/even ? '
and timed irrigation watering
4) Begin severe Stage 4 wa#er conservation program - outside ? ,
watering ban .
5) Alfaw storage tanks to go to lower Isvels - Ioss of excess ? �
emerg�ncy water �
6} Operate Arrowhead Wel! 800 ' �
. � �
. '
,
��}
'
�
--�� . . . . �
. . �
�
'
. '
. '
� • '
. ��
�
' � � ST064344 �
APPEN �IX G
SOUTH TAHOE PUBLIC UTILITY DISTRICT
ADMINISTRATIVE CQDE
��VTH rqHoF
_--.....,.:. - �--
- - - �=
,p, c
Ve�wej •1950•`�'�e�e �G�
<�� Urr�rtv D�S�F'
A Codification of the Administration, Water,
Sewer and Street Lighting Ordinances of the
South Tahoe Public Utility District.
Section 3.4 Water Shortage and Drought Response Standards.
3.4.1 Pr�rpose. The specific provisions of this Section are necessary and proper to
conserve water resources and minimize cost to the District and expense to its customer associated
with the loss of water supply sources.
WATER CONSERVATION STAGES
3.4.2 Water T-Vaste Prol:ibite�l No water user shall waste water or make, cause, or
permit the use of water for any purpose contrary to any provision of this Section,or in quantities
in excess of the use permitted by the conservatian stage in effect pursuant to tlus Section. The
conservation stage shall be determined by the General Manager witli regard to supply and
demand of available water supplies, except that the Board shall detemune any conservation stage
m�re restrictive tlian Stage 3.
3.4.3 Stage 1 -Nor»:al Cacditions. During a Stage 1 -normal conditions,when tliere
is an adequate water supply, Water Users shall nat waste water and abide by the following:
a) Water Users shall not allow water to flow from their property onto
impervious surfaces or adjacent properly.
b) Water Users shall repair all leaks in plumbing and irrigation systems.
c) Hoses shall not be used for waslung motor vehicles without a shut-off
nozzle attached to flie hose. Continuous discharge from hose nozzle is
prohibited.Notwithstanding any provision in this Section to the contrary,
motor vehicles washing may be done at any time, subject to any other
applicable laws, on the property of a commercial car wash or service
station. Further, such washing is exempted from these regulations where
the health, safety and welfare of the public is dependent upon frequent
vehicle cleanings, such as garbage tiucks and vehicles which transport
food.
d) All Water Users aze encouraged to report to the District all signs or
indications of water leaks or water waste.
e} The use of water to irrigate non-landscaped,natural vegetation or
undeveloped property is prohibited unless necessitated by fire prevention
considerations in cases of severe fire danger.
3.4.4 Stage 2-Minor Water Sripplv Sliortage. During a Stage 2 -minor water supply
shortage, Stage 1 restrictions apply, and also the following shall apply:
a) Designated irrigation days shall be established which require houses
wliose street addresses end with an even number to irrigate on
even-numbered weekdays of the month; and require l�ouses whose street
address end with an odd number to irrigate on odd numbered weekdays of
the month. In months of more than thirty{30)days, no irrigation shall be
permitted on the flurty-first{31st) day. An exemption shall exist under
Stage 2 restrictions for new lawns planted within thirty(30) days of
commencement of Stage 2,or to comply with Tahoe Regional Protection
Agency's revegetation requirements and/or Best Management Practices
on new construction or remodels, except that the Board may permit
extended hours of irrigatian of public facilities pursuant to Section 3.4.16,
provided, irrigation of lawns, gardens, landscaped areas, trees,shrubs or
other plants is permitted at anytime if
1) a hand-held hose is used, or
2) a l�and-lield, faucet filled bucket of five (5) gallons or less is used,
or
3) a drip ar soaker-type irrigation system is used.
b) Water shall not be used to wash sidewalks, driveways,parking areas,
tennis courts,decks,patias or other improved areas, except in conjunction
with driveway repair and sealing, or to alleviate immediate fire or
sanitation hazards.
c} All commercial establislunents where food or beverages are provided shall
serve water to their customers only when specifically requested by the
customer.
3.4.5 Stage 3-Severe Water Sr�pplv Slrortage. During a Stage 3 - severe water
shortage,Stages 1 and 2 reshicrions shall apply, and also the following shall apply:
a) Imgation is prohibited on weekends. The Boazd may pernut an exemption
for public facilities pursuant to Section 3.4.16.
b) The filling with water of outdoor swimming pools wluclt aze not covered
during periods of non-use is prohibited.
c) The operation of any ornamental fountain or similar decorative water
structure is prohibited unless a recycling system is used and a notice to the
public of such recycling system is prominently displayed.
3.4.6 Stage 4- Critical Water Srrpplv S/lortage. During Stage 4-Critical Water supply
shortage, Stages 1,2, and 3 restrictions apply, and flie Board may designate specific areas for
further restrictions as follows:
a) Outdoor irrigation of all vegetation including lawns a�id landscaping is
limited to once per week, except more frequent irrigation of public
facilities may be permitted pursuant to Section 3.4.16.
b) No water shall be used for irrigating landscaping for new construction.
c) Use of water from fire liydrants sliall be limited to fire fighting and/or
other activities immediately necessary to maintaining the health, safety and
weIfare of the community, as determined by tiie District or other
govemment entity with appropriate jurisdiction.
3.4.7 Stage 5- Water Emergeric�. During a Stage 5 - Water shortage emergency,
Stages 1,2, 3, and 4 restrictions apply and the Board may designate specific areas for further
restr-ictions as follows:
a) The use of water for other than domestic and commercial use is prolubited
except irrigatioi;of public facilities may be permitted pursuant to Section
3.4.16.
b) The use of water for dust or dirt control, grading and road construction
purposes is prohibited.
c} The use of water for fluslung of fire hydrants,except for emergency
purposes, as determined by the District or other govemment entity with
appropriate jurisdiction, is prolubited.
d) The use of water for air conditioning purposes,where an alternate source
of fresh air is available,is prohibited.
ENFORCEMENT
3.4.8 Er:forcence�rt. The General Manager, and other District authorized
representatives have the duty and aze autt�arized to enforce all provisions of tlus Section 3.4.
3.4.9 Firsf Violatian. For a first violation wittun one year,the District shall issue a
written warning to the Water User.
3.4.10 Secor�d Yiolation. For a second violation within one year, a fine of$100 shatl be
added to the Water User's bill at the property where the violation occurred.
3.4.11 T/iird Violatia�. For a third violation witYlin one year, a fine of$200 shall be
added to the Water User's bill at t�ie property where the violation occurred. In addition to tlxe
fine,tlle Board or the General Manager may require installation of a flow-restricting device on
the Water User's service connection.
3.4.12 Forrrtic �olatior:. For a fourth and any additional violations within one year, a
fine of$500 shall be added to the Water User's bill at the properly where the vialarion occurred
and the Dis�ict may discontinue the Water User's water service at the property where the
violation occurred in accardance with District procedures. Re-connection shall be permitted only
when there is reasonable
protection against future violations such as a flow-restricting device on the customer's service
connection as determined in the District's discretion.
3.4.13 District Euforce�neiet Costs. District shall be reimbursed for its costs and
expenses in enforcing the provisions of tl�is Section 3.4, including such costs as District incurs
for District staff to investigate and monitor the Water User's compliance with the terms of this
Section. Charges for installation of flow-restricting devices or for discontinuing or restoring
water service, as those charges are incuned by the District, shall be added to the Water User's
bill at the property where tlie enforcement costs were incurred.
ADNIINISTRATION
3.4.14 General. The provisions of this Section 3.4 shall be administered and enforced by
the District through the General Manager,who may delegate such enforcement to one or more
Appendix G
STPUD 2005 Annual Consumer Confidence Report
�
�, s �
— c ° """ � � -_ �, 2, ° � � — o o � a '�s� s�
O C5 � � `u Q- � � � c c '> A� "' Q � _ •6 _ O � c -T3
� .� ,� � �`` � � � � o � v t� :.� o � �' c� � � � -'t � c �cu `� as
H os � � �fl a�s �c � o � �� � � � �o �s � � _Q �� � Q.o � o � �
� oa�ic � � -� �� ° ° " ° '� N � °' N �Er °' �N " �� ° o 'a a ° � � s
a� s �c v d c �c � � � � � 6 Q � ,g •�' -o rn-o� � � .° a� � � �.fl� .v
.- O � v � � t7 � o N� -� a � c � ` � � c c �7 � � �..._ -- � � � � �
�n c O? � . c V _Q � O C�:� > a � � � ?. � �n �
c � .
� � � � o � � o °' �� �r� � � v � .` � � � o � a � .L � � '� v � 3 .� � �
o � Q� � � � N a a� o L � ao � � � o � ,� � c a' ` °_ tlJ a' � .� -° �a
o �a� ° � � � �' � �- � � �, �; � `� � '� �� a � � a ° a Q.`cQ � o
� � � c s � vi O v � 6 ? „i � ?�. d � � � C O �� � � � p ,._, C7 LT)�� �
� g O � CL'.� cJ) c ? V
� � 3 0 � � o � � o ° E '> `c — o Q o o a = �•o L o � a � _ -� � o c�
�� � � C � � Q GJ�`'� � G Q`�`= � ;� � T � a Qy .� � � .� p d � � � Q Q
� � a� ° ° �� h} ° � o � c � � -�� � a Q a o a 'U°� � v o` � � c�
v v ..� �
� ,c o o �� 3 � > ° � � N � 3 -� �� o- �; c U � °" � a o � ° �� .� �((�] ; �
�. ��.5� � -p �' [}� v fl 'A � � � {� � O O tJ '� -� � .� � � � N � � Ct`1 �t �"_ � `cv
_ O N � � �_ � • p ;,� O Z3 � cU � ._ �
a o _5-.� c � � a� > `v a� � � � � � v � '� E o "' � o cs � "' c
C U • �' � � .� N p � g Q',� � C N *- � 'Q �j 43 S C vj N O — E an Cy
° a� ° o � `r' -o o .._ "-'� � � a�° � �' as .� �l " �� � � � �� � ° �� -cs
o � � � v Q". �-° ° � � a o— � v � r� ar-a ,�, = c �, � Q
�,Q a � -� LL; o �, ° ._ h � ° � a� �' o � � •� •° _° � �� p � o o ` �' �
� o � a a ,� � .? 3 � �; .� � E a � � � ° � � �' a 4 .� °�� � � a a � �
� .� `o c v � o �._ fl � N � a� � �. o y . Q � �; cn a� 3 ,o �
_ c � �- �, � Q a� d o v c -��•- v .� � -o a O cu � 6 c� •- �-� Q �
C3 O (ll � q� 07 v �N N � N p � N � � N '�v t"'ll L3 O "' � V '? 'v � ,� � � V
� c"s � � � Q � .� 3s o cu � a > � a� � � a � � � � � ° � � ��
N L V � � � � CL N � � Q. �I L.S O CS � V� � �. L
�� � C � � N .N �
� v O -g ^ `— `c c
.� •U � v� �� D� � qy �Q` y � �v � °� � � �6
a�� °� � as � � � a. � " c � � � ° 3 a � ���� � .-a
�- � ��'> � ��� aa� �--� �� � ,b �` �� �� ma � � a �
�u., � � .� a �. `� � �--ov �� �cv '�, �y � � � g > o� Q- � o
T--_000_ �-a '� � o�, �,s � v � ��� a� � �sr�-c y.�
_ U a �y � � �`• c o� � q�� .� °'��o O � � ` c3 Q-a �U v � � �
Q �, ~c—°_s � Z � � �� Nc}a � aoa � c�-c3 •"-' Qu— � �� �
� � � � Q � o � c � o . � � � � vt �a� g" � .� Z�
gQ� Nw3 E- .c � °�� i ° o_'= Ec �' O-� o �sv � ° 3o-� O v
a� ° °' � �" Qa �� �-a��to� � �o � � yQ3a � �, �, � � a �„�. .�
',v� ° '� �' cc� = v � •- o � oeN '�, o � Z � � � � Z '
oy- u �.. � �; Z � o � �'
a °zy � ° °. a �� � �zao � �� °� "' �-'o �' Yo a �'' a7v� :�� Z3
°- p �.> o � � � c � p� �"- � �n '�� c O ,p� �� 3 �� c = 6i � �
u���� a ,Q a� .a a o ��� °� u � � � '� :� � �� a •°�_-
� ni � �p a v o�s�, � � �= p � E � p� °-�� �,� �-c`i-p c a� � I�Q- ;�c
�
�� Q� W � Q•- O sll �Z3 N �- 1Y ' }.�B"L3 � i/! C�— � 'n p � Z �}}
� C o
� � C3 C� ` N SI�� (� 3 AL�7 �`��� U}L � a� � � � �- iA O p �� Q � �ri'
� } 4� �°� e.� >� �-� E�� "— o � 3 __ c s a�;� �� � �
t�. �-_-�-� � �f.' a� i j E � p � o-�� .- c v �.�-- � c� N . �n t�7, u�
�``� ° � 2 � � � � � a-� a'V� � E " � o �s� � W �� °' � •� � � �
W � � "> � ° �� v t�s o w�Q � � � � •��o � � '� a �'.` p p � 1=- �R
a ���V � O W L� C j O ���c W N�Cn � � �Q � � �...0 � O U �n 6y 1.I
3 {U � +^ � W � 'n �i � C7 N vi .� O � 0 `-' V..� O W .i N� ` � � Z
� � � � � Z �S �n N� U �' � [Z � � YI p (� ''""'� � � � � _ .,a_ N V Q U
�' iu� .�, � � _� � o o `� ��� o °� u�, v�a �' a.'_ flC [� �o a�p � >" Z
N . ic i ``°� "'_ .'> � > �3 � LFj > p
� {`3 p� p; g Q � O � � �� p p Q 7�,. � _r� > � (J ��c cll p �.L N v� ="} t�
� �'S �s � t'3 � � L� � Q f�...� .0 H f1. �U..._ ? �N Q t2� �� Q.s t�F�—-� r'�.' �.
�
� � � .� � `� � �� �� � � -� �
� � � � � � �""' � �`Y= � � � ��' ..�, •E
� � o E � � E� � '� � � �' '"� � � 9r�2i,j_ � �
`� � � "�. �' t3� �' � �` �� � � �ffi� J��S c�i � E
E �� � � $ p `-� � �'_` , �� 'c � ..� O� �
Z g _�.� � � � :� � � � ���� .' � �� � � �'o •� �
� = �� = •� .� � �— � � u � .$���� �� �€ � ,.� � �
� � � �� � � ff .�: �� ..� "�-g� � �-�.� � � V �
� � � � � ° �. ���.:� .- s�
'� � E— �. � �. �� ..g � ,.� �� � . � � � �
"` �y �L � �' � �' �`� tL o �.� _ v � � � � �
� �- � �-_ �_ � � .���a �� � � � •�� -�
� .:, � � � �— � � � � � � � �
� �� � -� � � �. � � � � �. � � � � � z
I � ' � O E I �
I c (,1 � �
� � ! � i � O ,yUj N i � �
� p � � � � c�.� I U � .,�-� � ; d p �
fY � � > C S �` � d -0 fY � �� N �y
� � �N � t-O I �j w O N yr � �� s-p `
�n ` c � � �n N
� E N l� �
C) �.r 3 "O � °N ! ai o I ti °' � a °-'-� �� a�
h � c a`O r.� ' � 2 j � � `` p� Vf � �i,� O �
-� � O .Q N E � ' bj N � � � ,,,,� � N� c�
,Q -o ? � � o � �i N � i -o � � � Q �-°;o0
c� o� � aa� �! -� �! o o � - � ' 6 0 3
a 2 ;,;� .z s E o, _ c � 2 � °� -° c, s �i N o
� ` °-° p- °cs�° o� �' � o a -°'o � � o ogo
I o
0 3 � E .0 � c � p �.�
�u .� O � �=I ,t 0 Q-� O O � � p �o I u ., �
� aoo o.Ls.�i � �o! a o � � � "' o� ° Es
� � E �=p u E� 0 � �n � °' m c.�
° o� �� �� � o o! o o � � —p o o� c ��
w.� N w p� O� �.� c' w w c0 N U w —
a `�
� � � C z � C � � ° � �
� �
�0 8 8 8 8 8 � 8 � �z
� � W �
CR N rl�', O� ^ � c�'� � at�
�_ ^ Q O N � O � uxi
Z W
�O Z Z o v Z Z Z �o g S
N
C�J v� N � '0 ,� p p �
� vi o �" � Z Z y �' (v
o ,q ,o 0
�r�'�. Z
��� o cv o � o M � a � c-�
t�
a� � p � � � Q � � c-�
� j
�i7 �
� I � '
� �
' i O
N � I �
I, ����' � Z Z � � � I Q
� � I 4 Q � � Q � Q
� E v� Z � Z � 3 � Q �, o
Zj I a 4 'Q a °- Q Z � Z ° i E
c i Z — ., �- �n 0 Q N �
�� ,, o � Q a w � O E � � � o
I, r- � — E o
Q i li Z , � v_ � � � � F c., : o
F OI �! o ; a p a m o y � � pZ � .�
Q �j � _ ; �5' � ° j — o�e ~ � O � � � � o
Z Z! Q d ; E j p v � c�u � �p a � � 4 .� ': o
�� u � E O � F � Q 2�.-. � �
ot � �'
Z p; � o ; � Ij � Q �o � � � � �� p -a ; o
� z I Q` � ; Z JS oc > > � F r�s Z � , U
m �
� -� p � �sc� � � � ♦"' cv c t�y � �
p -� ...Q h- � � � � � Q fl O �
F. � � Qi ._ .c A� y � d .� � � � V
.1� ,� � �
� � '° � � � T � � � � � Q a �y c
� • � � ° p �j 'y �'. m � c �' a
� � .� Q.�n .� q� p 3� O � � � � �
� Cn c O � � � � c �y 't7 � '� � u ,�n
'L O � Q � C p �j „i �j .� p vyi N p
V � � � 0 6(y 4-• � � � � � � c
p c3 �i �- g 5 c � �
+� �S � �'' cu �c�' 3 � -p s � ' c ri � �'
� � ��y a c� -t� y � .Q c _ � '� �t � c
� � � v�i � � � a��t � O �� .� �
3 � � � � �.. � � � �-� � � ° �.� .��
i j : ' i I � � I
F j � � :, i
X � � � i �
W j � � I i i
� I �', i i � , I � I i �: i I �, I
`c ' � � c `c . : � .
d � I � � ' 2; I � N : � ��, � i
� � � � I N N I I O �'�, N h I � � ' � i � � N N L� �I Y� I � �'',, N I N �V�l
r �; � � � �; � � I � �: �� � �; �I �; �! � �
� � : a� � � � :, a� � i a� I a� ; � � a� . a� : a� : a� ! a� �
Q w -o ; -o -a ' � -o � w w I -o , -o � -o v i -o ; � ; -o � -o -o
Z � o i o a : � � a a I � � ':, o I o 0 0 0 '! o '', o , o , o 0
❑ � i � 2 i v � � : � 2 �i � � ' 2 � � : 2 2 � : � j 2 '', � i � 2
� p i 0 i O O � V � � ; � Q i O O � O I O ! 6 a O ; O ; O ' O I � � 6
O
�,' j O � O O j T; j O O i > > ; O ; O O O O 'j O O . O I O O
(} j C C C C C C C , C '�� C C C C
� � � ' � � � � � I, � � � � � �''� � � .� ' � � � 0 ', � �i � � i � �
�( � O � O O .�4 I �i O O I � �� O � O '�, O O O ! O � O i Q Q
�u m , w` '' w` w` ' L i m w` w` m ao : w` w` w I w` w ! w` I w '', w ' w w
� �
� �
g � � z z z � 1 � � z z z �Z � z � � � z � Iz z z z
� � I
i i
�
t
� :
J J � J � \J � J � � � � � � � � � � I J ~ � �
\ � \. j']) OS� �' � � � C �j � �
> a' � .o � � � � � �' �' c�1 � i �' � � E � � I E �p- � �'
d cv � 1� �O � � � v �o a in ,' v M N� �t p � � r� O � c�i
p ,... � O
"� � � Q �' �v � .— � ; = cv 0 � m p { •- � �..1 �
f
; , I ,
; ; ;
i '
;
� � ! � ; �
� a a rn� � Q a ¢ ¢ ; Q Q Q �'
� � Z Z Z�' Z � � � Z z z Z Z Z� �Z Z Z � � � Z � �
y � � i �
� j
� I
�, I � i �, I �,� � �
i
i '' � ; � '! I�'i �'', ' '', ''', ',
i � I I �', ���i �� ' ,, ''�, I �'�, . i
; i I , �
� � i
i I � ' ' ', i i
� I ' i i
� I � (
i
I' i
� I i ' ' � ', �
�
� ; � o z-� ' ,, j o � �i �
� I ; ,� ; _ � > ; � � o ' , i ;
z i ' o � � i � a �
et � i -o i -o , � � �� � � li � o � ! j i
" � o , � o : o s :
Q6 2;; � E � i � , U I � o-: � I .� U °-! ; ` � �
r c -o � _ '' � °u ' v o Q a� u' � s ' s � I
� �I � � o � � ' s ''. � �j �i � o ; � o I �� o °b , I a ;, � o II � c
O Q i Q j [� U I U I� U � � �N ,:, � � � ���''� � � _ � i L ( O O I, Q�i � a ; � � N
� p� � r^�
vs tJ �
� � �
vi
..� � C � O �
� � C o � j _
� °' � � � ,,a
� � ,� � �' a m
0
`' -� � ° • �
V N � o � o
v � �
�{ �� � � � .� s
z � � � �}.,'3 ¢t
� c �
G} ` � £� p
� � .� � i
Q O va+
w
a � LL � �� •�`—�` �'
p- v � N � d c v N �c �„ >,
-o ° p '` � a°i � ° m v � � � � � ° � w �
: � s ..�.. -� o � a � o � v � �-�- a u �`�
.� .� �� �, o � �; �-° �� ° E a� � � ° s oa a � = s � � a�
c v .� L c � c �, �''' c .
C � '` � s v � N N ' � � � — � `n � � � N s � 3 � � C
C} CTS ill �{� � L � � L c N V O c O zJ s � LS -� C > � E •� CS
U {� �'y C G Q U � .C -� y Q N � � � '(.3 � y t_ {j} .C � Q . U3 V
� � .� v � � r� u �, a � �' a a p � � = � �� 3 � v � > s o�
� � N V! � � V � � �.N 3 ,� � � U `� N O O � � Q- � �
� � o .v �' � o ? ° � � �� a� � � � � � Q `� "- o � v °3 C.1 � �
� � u ,`v � � --� --p � � •"-' a •E � � p� Q � W N � at''i � ru `n a� a�i ,�
� � � � _ � � � � � � ?. N � w � OC O �c � � N �v p � -� � ',_
w fl
� 3 0 o cu Q � a �v �� �� a >.o O -a � ° rn� a v o �-v
N Q� '� � � � U N C � 1J � {i. � C Q N {U
° � � � � � � ° � o � � � a o 0 Z -°a g � "> a°i 3 � o �, `o 0
� o � > > �, rs = � " °' as " � O i °� � � -= o �°' ti X a� v
� o 0 0 .,� a �, � � �- o E �L o v c � � v
.� a ° "� s E c � � o s o � o a � Q � � � �' � -" N o .5 � c
� � � s cu .= -p O'�.� =p � � �}\� i !Q- c � � � ° v � -� t3 v � �
-� � ° � ° � � .� .� � � a� s a °- � O � � = o � .� cs � ,a � >
� � a � � .� � o v .L � o � � � u. � a � � L � � 'v �� �
� � N �
N C � <ri p O � � L7 "_ \ � Z i � � � '�_" � � .� � �
� N -� s � 3 a ,� � a s � V � � z � ,-'q a� � � � � v ° � •� a� �
° � � � a� a� � � ,� a n--Q 6 Q O Z a o s �s c � u a' o �, --�
� � � �, � � s o � ca v� p 3 � � a, 3 � � � a- a
� � � � s .� ,c a� o � � 'a c� � Q E- �� a� a c E o x�
� ` c � c � �t F� c > c� O .� � �
d � O N fl 4 � � c � � T d O �'ch � G -Y � � v v � s � � � N
-D � � � N • .� tJ x � � C3 U ut � '= � � � � � � O "'
� Q .� � � � � ca � O s iL — � V t✓S �Y Q Z) � s2 N w C3 _c �v, 3 � ,n
c -a � �, � o } � o >. >., > v a�
cv � � R? �i v � �, � ..._ � a� -� � a �- �� -� �
� o ° �,, o — v a •� o, � � o 0 3 3 � � � � o . � _o
•6 } � �� � � a � � •c E � v� � �g 3 �� � � � � � �
� i � p - a � � � " "� o � �' � c � o �o
o = � ' � cJ °� � '- m° s � N � ° �"-L c a p � � q��y �O �n `' � �
u � o � } a a c� � � u � � rn�L �..._ a� � -� � � o a =
° � � � �� `�-� fl"� � ° V Q � c� � c � •�` � -� �� ° � c -a o
N S L1 C r.` C N } '..�. � C
E ('J ..a_ � {5') '� .`�T_' 'd � �' N .> QJ C7 t3 � � 7 Q .�' j.`� . b � � � �
i- � 7� � � C C � `''� � �' � � � L �n �n"Q p C a ,� v � Q �
.P n � �f0 �v � � ' "� a � a V � ,� � aJ ° o Cn ° o V> � `� a
° � o ' °' � Z :- �
� �` � �, a� _ a c � � o Q g �i a c v �>. q� , v
� � a' � � � � :� � �i Q � �} �y �- oG � �� � �
r- E a� � -a ;= r` - r. -� a. cu � � �' � � -° �- °-� °e a� �
e/+�. a cv�('� .,: v.(� �a� 3v � cvo � os� � �, � �, E �r pE �
{.E O � �S .0 � Y �� Y N s � � vN .0 � � L7 O u_ ; CJ N �.,� O t� "} LTS
� �� �'.o� v� ��' rt � o °3N � o -cs °' -� U rna� s � �' c � �� Z o a
- c �n v vZ � �ll � �� c c� -� p �r, � 'n � v �
� � v c ���, d � o � � �s � � o p -� � �� � � � � � � pa � g..
Z a� � -a .� O 4n .=' � � � •� c h � c � � � �- � �-is '� ° '- `n Z ai w
� t v, ` � }U � 43 O ni � _ Q � a c c � � � � � t3 (� N >
� � T v Q '' � `� � � � E �- � � �► O s � N O a N .� � � � � N tJ
w � � '� „ o v � � � � � s a ." � ui � c ,v a -� -� ` ,.� c � Q -c �
V' V � .v_�i � v O �"'a O '� � � y� � � a� � � i J �i c O � O C a �
" � op -n ,�'Q � a a � g w w �� Z > 3 a � ,= � � o �� v c� �. � o
Z � >, '�--' °-a `_ � .� m p a a� O ''� a � � � � � O p c
`Q' � y� � Q} Q � �C a � L Vl �� .` � � � ��N � � � � � .� `'��y. � � ��
v Q � � � �� � (V N Q � � � � X V � � � � J Q.� � �} {�
� O . `� u � :�`` -� W N � L7 .� C � �
V �, .V Q � E . 3 C� � i— c E- -o c� a� � -a o � � .� �'` v�i
O cu � � � � o q � � � s a �' � at � -$ � .��� i.i3OZ �,� � �
x -� �-� 3 �-_= 30o f— r5E-- � 00 3ori� ._ -� , . , �.� ovi° � ��
�] � � N �}
� C� y� N a y� � �j2`{ � rty'�¢�(�� � N�C V .Y
��J ����� � V W�� Q l� � O �� M � ` �� � �
��++ � � ���� ��� � � �i� � � ��'���� � � v c��
4 �'�m�Z'�� . ��i � �y� .4� �� ��� E �a�-'�,�Q ����„� '73
3 �� `� .� � �� � � o�g -� � � �5� -� � � ��
� �� C � � ��� � �
z �� � � �� g._ � �_ � � .� _ ��
�c ��-g� � d.��'� �''E ��� �-�...��� °'�� � �.� �'� -�
�-�-� � � � �-��; ��g � ��_� ' �. ��
z � o �. � ���� � �� � ��� �.� � ..�
� �� S a � � � � ��'� ���_�� e��`�� ..� �-S�� e � � � �
°�'► � � .� ��'_�� �� �� .. �y o ��� c�� ����, cr��.� ,��,� �� .s .�
�o � � • � -���� �� � � � � .�� �� ��._�� � .�
�� ��� �� �s�T��� ��-��-� • �� a������ ..�� g�� � ��a ��s ��
�� � �
�Q � � � � � � � � �
Appendix H
District Water Rates
SOUTH TAHOE PUBLIC UTILITY DISTRICT
2007/08 WATER RATES
EFFECTIVE: 07/01/06
CODE CONNECTION ANNUAL QUARTERLY
SIZE SERVICE CHRGE SERVICE CHARGE
SF SINGLE FAMILY DWELL'G $426.32 $106.58
DU DUPLEX $803.44 $200.86
TR TRIPLEX $1,091.48 $272.87
MU FOUR-PLEX $1,405.16 $351.29
EACH ADDITIONAL UNIT $233.40 $58.35
R75 SFD 3/" METERED $239.64 $59.91
R1 SFD 1" METERED $327.92 $81.98
R15 SFD 1 '/z" METERED $514.32 $128.58
R2 SFD 2" METERED $795.04 $198.76
M75 MFD 3/." METERED $239.64 $59.91
M1 MFD 1" METERED $327.92 $81.98
M15 MFD 1 '/2" METERED $514.32 $128.58
M2 MFD 2" METERED $795.04 $198.76
M3 MFD 3" METERED $1,590.32 $397.58
M4 MFD 4" METERED $2,385.32 $596.33
B75 3/4" BUSINESS FLAT $588.36 $147.09
B1 1" BUSINESS FLAT $887.84 $221.96
C75 3/" COMMERCIAL METER $239.64 $59.91
C1 1" COMMERCIAL METER $327.92 $81.98
C15 1 '/2" COMMERCIAL METER $514.32 $128.58
C2 2" COMMERCIAL METER $795.04 $198.76
C3 3" COMMERCIAL METER $1,590.32 $397.58
C4 4" COMMERCIAL METER $2,385.32 $596.33
C6 6" COMMERCIAL METER $3,185.96 $796.49
C8 8" COMMERCIAL METER $4,272.24 $1,068.06
C10 10" COMMERCIAL METER $5,697.40 $1,424.35
IF1 1" IINTERTIE FLAT $887.84 $221.96
IF75 3/<" INTERTIE FLAT $588.36 $147.09
IM15 1.5" INTERDEPARTMENTAL $514.32 $128.58
S2 1" RESALE METER $327.92 $81.98
1) Metered Consumption Rate: $2.00 per 100 cubic feet
2) Where unmetered services are disconnected due to non-payment,the minimum metered rate
representing the DistricYs fixed costs, shall apply according to line size
3) Current Residential Connection Fee: $1,997.00+$150 Admin. Fee(Sec.3.1.48)
4) Commercial Connection Fee subject to use projections/residential equivalency per
Admin. Code Sec. 3.123 et seq.
C/Customer Service on Mrbill/RexMlater Rates Meter Rates
SOUTH TAHOE PUBLIC UTILITY DISTRICT
SEWER RATE SCHEDULE
EFFECTIVE: 07/01/2006
Tvpe of Connection Annual Service Quarterly Service Minimum Service
Charqe per Unit Charqe per Unit Charqe per Unit
Homes and Apartments $103.96 $25.99 $8.66
Motels/Hotels/Timeshares $99.00 $24.75 $8.25
Restaurants $111.88 $27.97 $9.32
Service Stations $111.88 $27.97 $9.32
TraileNMobile Home Parks $98.12 $24.53 $8.18
&Campgrounds
Laundromats $111.88 $27.97 $9.32
Automobile Service Garage $111.88 $27.97 $9.32
Taverns without Food $111.88 $27.97 $9.32
Facilities
All Other Commercial $111.88 $27.97 $9.32
Establishments
Delinquent charges,when recorded as provided in California Government Code Section 54354.5,
And the DistricYs Administrative Code, shall constitute a lien upon the real property served.
C/Customer Service on Mrbill/Rex/Sewer Rates Schedule of Sewer Units
Appendix 1
Cost Effectiveness of Metering the Districts Residential Customers
,� _ ._
�-
RPPEI\I�IX 1
BROWN �� ND
C A L D W E L L
r,�y �s, 1995
Ms. Rhonda McFarlane
Finance Officer .
South Tahoe Public Utility District
127� Meadow Crest Drive
South Lake Tahoe, California 96154 11-45-1955-03
Subject: Cost-Effectiveness af Meterin� the District's
Residential Customers
Dear Ms. McFarlane:
In accordance with our consulting service agreement, we have analyzed the cost-effectiveness
of inetering the D�istrict's residential customers.
The South Tahoe Public Utility District (STPUD} currently serves about 12,540 customers,
of which about 11,760 are unmetered residential customers (abaut 10,790 are sin�le family
residential and 970 are muldple family residential). The majoriry{abaut 570)of the District's
780 commercial customers are metered.
As a consequence of the fact that sinsle family residential customers constitute about
90 percent of t.he District's unmetered customers, the determination of the cost-effectiveness
of ineterin� the District's unmetered customers reduces to the determination of the cost-
effectiveness of ineterin� the District's sinale family residential customers.
Based an the calculations set forth below, we have determined that it is not cost-effective to
meter sinale famiIy residential customers.
Methodaloby
To determine the cost-eifectiveness of ineterin� the District's single family residential
customers, it is necessary to:
1. Determine the costs associated with metering a sin�le family residential
customer. These costs are assumed to consist of the initial installatifln cost of
a 3/4-inch meter and the annual meter reading and maintenance costs.
OTI1Bl9SE:V.RE1195A1955-�1LTR-l.WPS b:w��^^^En?a�E�3����r,g r`.ne Con;Wlina•An21y,�cdlServic�s
QAISPS410
P.O. B��� 50��. 11'��.�.i T CkF.ti:. C.� 9�5�96•I?2�1
_agii 13i ,�:ix!. .a�i �.� r:. P�i:�s«THi«. C:1 9.t;�3-�3a�
, +�I9i �?--'1N14 F�� I:I�)I `13 i-4Q36
Ms. Rhonda McFarlane
7uly 1'1, 1995
Page 2
2. Determine the likely reduction in water use as a result of inetering and the
value of the water saved.
3. Determine the cost effectiveness by:
a. The comparing of the net present value (NPV} af the water saved to
NPV of the costs of inetering.
b. Determining the payback period.
c. Determining the internal rate of return (IRR).
Cost of Metering
The cost assaciated with metenn� sinQle family residential customers consist of the initial
installation cost of the meter and the annual meter reading and meter maintenance cQsts.
The current averaje cost of installin� a 3/4-inch meter in the Sauth Lal:e Tahoe area is
calculated by escalatins the 1994 estimate developed by the Lake Park Association (LPA).
In 1994, the LPA estimated the cost of installing a 3/4-inch meter to approximate $1,150.
Escalating this cost by 3.5 percent for inflation yields a current estimate of about $1,200.
In addition, we have assumed that meter reading costs would approximate $4/year (based on
4 reads) and meter maintenance eosts would approximate $6/year (5 percent of the cost of
a 3/4-inch meter).
The net present value of these costs is calculated as:
� 10
NPV = 1,200 + �
� = i (1.03)i
where the discount rate {the real cost of maney) is assumed to be 3 percent The real cost
of money (as opposed to the inflation adjusted nominal cost) is used because we have not
escalated the annual costs for inflation and, thus, do not use an inflation adjusted discount
rate. In addition, we have assumed that the meter has a useful life of 25 years. Based on
these assumptions, the NPV is $1,374.
mnerss�u.x��9ss�ess�marrza.wps
QMS-P5410
Ms. Rhonda McFariane
3uly 17, 1995
Pa�e 3
Amount and Value of �'Vater Savinas
The amount of water use reductions resulling from meterinQ is difficult to predict because
water use depends on a number of factors. Studies which report water use before and after
the installadon of ineters often ignore the impact of the chan�e in other variables unpactin�
water use such as weather and price. For eaample, if the weather in the period priar to
installing meters is cool and wet and becomes hot and dry in the period after meter
installation, the full impact of ineterin� is likely to masked by the impact of weather.
Similarly, the type of rate structure after meterins could have a signif'icant impact on water
use. If a signi�icant portion of costs are still collected by a high fixed quarterly service
chaz�e (and a conespondingly low quantity charge), the impact of ineterin� is likely to be
less than if a signiEicant portion of costs are recavered via a relatively high quantity char?e
(and a correspondingly low fixed charge). �
The most comprehensive studies on the impact of ineterinJ have been conducted in the City
of Denver wheze the city's residential customers have been metered aver the course of abovt
20 years (see attached Table 5-1 from a study by Brown and Caldwell conducted for the
Department of Housing and Uzban Development {HUD). The results of this study indicate
that the best estimate of the reduction in lon�-term average annual water use resaltin� from
the metez�ng of residential customers is 20 gercent This is �the amount we used in the
STPUD Rate Study (June 1995). That is, we assumed ihat annual use by single family
residential customers would decrease from 121.97 Ccf to 97.58 Ccf (an annual redvction of
24.39 Cc fl.
The value of this savin� depends on the rate structure adopted. If the Disvict adopted rate
scenario 2 (see table on page 5-17 of the STPUD Rate Study), the quantity charge for
FY 1995/9b would be $1.8�/Ccf. If the District adopted scenario 4, the quantity charge
wauld be $1..56 Ccf. Assumin� the District staff adopts rate scenaria 4, the annual saving
would be $38.05 {24.39 Ccf x $1.56/Ce�. A�ain, the net present value of these annual
savin�s is calculated as:
u 38.OS
NPV = �
t = i (1.03}�
Based on the abave calculadon, the NPV is $652.�4.
mn a�sL�a��vssress.mu.�rxa.wPs
QMS-PS�10
Ms. Rhanda McFarlane
July 17, i995
Page 4
Determination of Cost-Effectiveness of Meterinb
The NPV calculations presented above indicate that the investment in metering is not cost-
effective. That is, the net present value of the cost of inetering ($1,374) is more than double
the net present value af the benefits of inetering {$b6;}.
Another way to measure the cost-effectiveness of inetering is to calculate the payback period.
The simple payback period (undiscounted) is determined by dividin� the initial cost of
metering {$1,240 for a 3/4-inch meter) by the net annual savin�s of$28.05 ($38.05 Iess $10
in annual meterin� costs). The simple payback periad is 42.8 years. Because the avera�e
California residential dwelling unit changes hands every 7 years,a payback period of 43 years
is not acceptable. It may, in fact, be in excess of the life expeclancy of the average
homeowner and certainly the avera�e life oP ihe met�r.
Another method far determining cost-effectiveness af ineterinb is to calculate the internal rate
of retum (IRR) and compare, this return to the return an unmetered customer couid receive
by investing in an alternative investment. Any customer contemplating the purchase of a
meter wouId obviously know ihat he or she could alternatively invest the $1,20Q in a 25-year
U.S. government bond currently yielding 6.6 percent. Therefore, before installing a meter,
a customer would have to be certain that they would receive a return of at }east 6.6 percent
and rnay want a higher return (e.g., equal to lhe alternatives of paying hack credit card debt,
invesdns in mutual funds, etc.). The real IltR is calcuIated as:
$1,200 = � (38.05 — 10.00)
i , 1 �1 + I�t
�
Because the annual net saving is so low ($28.05), there is no value of IRR which solves the
above equation. That is, if$28.45 is rcceived each year for 25 years, the total received is
only �701.?S (25 x �28.0�). If we calculate the IRR over �Q years as:
50 28.�5
$1,200 = �
� = i (1 + IRR)3
�'iI16i951E�LAbII 95A195S03LLTit•3.K'?5
Q�SSPS�ilO
Ms. Rhonda McFarlane
7uly 17, 1495
Pa�e �
The real IRR over 50 years is 0.63 percent The nominal IRR is equal to the real IItR plus
expected inflation level. Therefore, the naminal IRR is equal to 4.13 percent (0.63 plus
expected annual inflation of 3.� percent). Ti1is is the value {the nominal value) which must
be compared to investrnent alternatives. This value is, of course, si;nificanily Iess than that
which could be received frorn a riskless tceasury band and, thus, the investment in a water
meter would not be cost-effective.
Sumrnary
As can be concluded from the above analysis, anless the cost of a meter decreases
siQnificantly, the amount of water saved increascs, or the value (cast} of water increases
signifcantly, metering is not even close to being cost-effective in the STPUD sen�ice area.
If you have any qvestions or comments concernin� ihis analysis, please call me at
(510) 210-2202.
Sincerely,
BROWN AND CALDWELL
G�� �.l�c�.
Marvin Winer
Chief Economist
MW:jm
07A 81951E:V.RE119351195SOTLTA•3.W PS
QMSP5�10
i
6-2 '
�
i
�
1
(
t
. �
i
(
I
�
I
�,800 � �
�
�,� ��` LEGEND: �
( � ----- UNMETERED CUSTOMERS
� � .
,. t,400 � ` METERED CUSTOMERS
`c
� � .
� 1�2op 1 �
� � j`
v � i �� j 1 �
v ��� � 1 `� � �
�
� � � t � �
� � � j .1 �
� � � A � � ,
f �
�t 6� � ���t `I 1 �� 11
/ � � / �
� � j � j` � j `�
i�' 1 ` , `�
� �r
� i �
�
J F M A M J J A S 0 N O ! F M A M J J A S O N O .f F M A M J J A S 0 N D
1480 196t 1982
�igure 6-1 Average DaiEy Water Use--Denver Metering Study
Appendix J
Examples of Public Education Materials
APPEN�IX H
1
MAKE �V�E�RY DI��p
���Y��a
�F WA�'-E=R�, C O [9 N�`
�C.;i;�Y rY,i�4-':::�y
�S -�+.:'tu�%.
f=:ln�i�'Sierra,�vater is a very
����'r.:;�a �;::-z ,,
,T��precious"i'`e�'onrce and there is i
-.s�.�;�=;===�����"r,�����=:�•
,,,t r '°�-ti�::��wnever.:enough'Eo waste.This
- - �.t:.._:._..= --= :•
iF.-�•:.. J�_.•� : '_. .. . .
� M•,�,, °:�. �resfaurant,=�n;_paTtnership with .
�••�•s�• ��the South�Tahbe'Public Utility
Vfi�(�Y 0� _ - ;j; _
`�-�= - - ��Distfic��" '`'... .. -:
E:�.:;.,;_ Y: �;-has ehosen to serve water
�Y_... ;..,. .. ... ::...-- � ,:.-:�- :
_ - - ��only�at;t.�e eusfomer's request
_�''�- _--��Th�"yan.k;�you�for hel.in� i
- _ .P.. g• i
_- " _'U 3�`:; ' _��,' °�-fr (
_-:s1.-�- _ -' =
. - -' _ - - _ -'. �
` _ Y_ _ �
I302i9.ReachOucSa��eH2O.3�8 5/2/00 7:37 AM� I
:'�1�, ij" " .:f^ ' 4�j'i.'r - "�:7::'..F�'Yil:"t!'��q''y'� ':fi': 'r'{:. �i' r:�t:��}':i.:'i+s :i= ' �i.:)-i.'
"- -'•�CI�t:; _ ' -•';f=s �,(:�' _ ' .tvj;.�::.�r__.1_ ':7:��•'i'.;'.i ;,�,..-i':
.�f:% �'i�C'i- .:r•� -'ic�= _:'•ii�c�-s:::;r_: :�.'-�': .x.r....
- .'!' - _ _ .r:�' - �r
�^ :''t:�i::-�..�•'.- +i.li'.::>y;'%..';1`::;s::
.,I-�-�,: _,, - - ��,, . ,..;:.,�;=,• �,_��.-ti .:•�.
_' _ -.,'i<," - n �:r•".:, ..�••ti.=•;fZ.... .
..�••'` - ?ri:�" 4:..._ �- - L.:. . J_ _ .,e'.
•:G•-' :iSi' t''' -\.' L'v �:il i 'Y''�"., s�l:' .l. �^,:A�Y'
- '-:,� _ a.�: 'j�'i''G' r:ii;e_ '••:j: r�?s:l .?-1�.�i;i'4. .�• �ii<5�•'' :i'ev: - ..�i�`a'�'.•�:... l� Y:...A
- -:tr�•.y,.�s� ':'�;�r :L� ..r�.. -�:�- .1...tv.lF.';':.�.: .F-..��t... `:iT::%•i.,:['lx'.�.�._.a.f7:..•,...;t:-
_ -^=1_'=,:°ci:' .::I"'3,`'_'..,..4;�...7�-�-j i�tn=.`'=.�'i'Z.��?S�:iiir -l.+.r.'.•:;-. �:xs.i:.�.. ?4�1''
�z-{•r': 2'G::: �a. . .!_...' " �;f.- ..,;�.__ r:..�:t'� .�icc;i'Ci::.,,: �i��: _ .]i:,,�r. �_�:
> _
' _ '.6= .Z�. - '�t'
� .» - ,o.:_: . _ �_
, _ .
- ' �(:w �.L"=
.:..rr. �._;-,-...:�:_,_.z.�,u -.�::. . .�
; .. ::-�..:.•:-._.....,_a.». `�• - - ��-
.;..
.rr�,•:•:
.r..;��•:�,.�.�" �'� ' 4:'v'::T;:�i'n� �:�1:'.
. - �... •...c :���i1�;1'::�::�1 •.�..�._..�::: ` `•
. _"_.......�I ...Jt�::i �..�t..._.,.. _ :.Jt� '.'. ^ ..�.._y.. .. _ �
_ ta .:e:�ar�4:.
. . .._�_�.:::_ti._... .....:�:-�:_ro .... en:.•;r.r.f.]_?ia:.r..-::=::-fC�'J«r4'r�r;'_�..�_`�.i`:.'n'�"e' �It.e �•�":t: �:c•e;^_i:q`::;:;.r:;t,
-.�'�., v.s�.:�.,��•�,. _.•I . t�-':« r'�r.- r'.s.a�[.. - �' " ' '.;-�,;.' ' -.s�-
,":Ln-ic_r.L:T =r-•�-.�.... ...rs.L_,�yS'_•r_a -3�u^�'.. �!: 'Sti:.lC. - _ ...;Y:�i.:i:::.•"y.
- .-tv� _�.'�a ,T,141.4�� "'_-F.(� rr:.�`-'�.'...a.is{ ' ' ' � _ jj' :...„Y:;�;^:
- _ _ �:.i.....� ',.,a<�tii:•'.�:'r._- ::tiy:.•'�.._r. c�:ce�:e:�..:.����,...".
_ _ :i:..Y' ' ' :::�}reyar_ '�.S!- ?.:a�:�:7:t�a'1��. >.u:'l._:. ,.r. ,)'• --i't:,.
�) .4���
- ' -�+::r. =_:iti.i= .'.a.�"f•�S'�'-x r:.a!?_. ,y-a_['- - _ - �t t-K':��•�.l•. ,r
- �i:}i<. . ��� .S.Y- �:5�- ,s����.• si�r `Is _ _:.cC�i.Y.I��y:,^ - ��.J. � ..�.."z'i:.t
. ..�-�i:•i.'t .�.�., �•�t.1. � .y ��Y'
•::'.::«�. �.,.`,:�. �u:. si:•:et�`.�i^ a .. .�L...-ar.. . .
' "����. .,.,. 'r:r:,_ r. ..r•�.a.•�c•�;.,T-�,.7�! _ ..�_!�'"-:a.;.�,.:.--= - r�w: _'...':
..._, r_�.::�,ic.:,�,i�s .. h.'� ' _ ot`� , �
-n:T. <':i�-:y:�..::�}r :' e '•• ' ' r�'1i:- • Y`.1•f`?' _
- C:3'-:_.Aa�:::.X.- ..ia+:11"-r,{�e ,_r13:e:,'r'c,-{l��:i: ''"�1:T''ii:lva'; '434•.�� _ ''-��.ir:aSEs*-��i=in:3:=..t:,l�'.°�,. ..qi_'. r�s�_ti_e�:_�:-
_._.. r. i., �•_x '
::...�"�.i.�r 5_s..cy:.. s.Cfv�.:. . - _ �iv -� _ �.�... ��
_p��.,,aS .:.,--�!�- � - ::l;i� _��� =:�5%.�ti;z'v �-ry..�. .:,�.-^,=�-.rr_�a:qT,__�:r__ __r��;y.,..�r� "'=tf�;'p}�`���x
-_r.a::c_.i--P-' - - - .e`E -: - 7•esr.. :'t.a:' �:Y.;.- :',«.
.:`'r-
'_ _ _ S.�F _ �.i"�(-• _
� .... ....� .. ::rt-.:..c, , , w:r!� _
- ,::,s. .._t=:;,::::>:s-:= -�,-�,,i•,•�=>,.�- - =',.-?1. ..F�;.. - .C.'y,:;::,-:r
..._,.,,, ..
' " ' :�,�.'" - ' ' . ��y+�' ' _
�:::=`..:... ". "�v i......, �-:•• e';:
...,.��^��.i.=•ir=:�': I.;i... . r ,_s-.,:....
�i... - _' ^;'k_' ' :'Cg_'.. '_ �'-i;>ti' "'ri':-:.(ci'''" _ �..r.;r�.?
'_ ' _�r," ' ' _ 'il.'�_. ' _' ' _'_ '
_ i`1.. ,
.._i��;..._�.5._'=lst :),s'�• ' _
- c_Is - ' �1j%•-1+�".::L�' ..'f.-'.
' _ a:i.T.�-'� ' ' '''s\.lr " ;f._;?! �:Ei.:`:.f,•'�:
' ' '"_:!,_" .::�+R��•'?n �;�t'3`_-3-. ''1`•• a../.� - _
_.._..�_-. u
--�:._a�- ...:.r� . .. .. ..,.r�•"
s��
,^ •
,,:. •:.�•.y� •:::.s._r::•rr.��ttsi..;s'=::r.�-_ �
y. .•-" r..�...." �t: -
_� ...._;. .s.:-lr.^.._:c...� .i-_e"::'.' '_'"S'::.:--.. ..t - _ ' _
�... � �r.t��:1�..�. t" w.�: �a' ...i':A. '
. F_. ,....._.._ , _. '..f..r-:: _t ..•_.1•:.ri.�':' .,.v.:� 5�-.�7" __ i,i;i' _:�1_;�.�.
_ �1 _t,.F__ 'ra��i�y�:. " _ ' _ :_:jr.V tia:iii�
� �ri' a[_ '"' _' �: ' - ' ' ' _
' "'_�'� ' '
" ' ' ,.i'i`:.�:n�::��;:.
=`L' _
:j�: _ -
_ .L.
- - - - r_�:�-:-==-" -- - �:r';�;.. _
- - - -- - - ;�i::`;_ .•!._.'`::%It:;
.... ..:• __;< .
_ V�,�.
�=- c;;-..;.... :-; ,
x :,:��>:
(�,c-- ,_,:.:,_.:,.•.. .,.._.�..,._•,_. _-: .y� _ _ _
_���,,.-,,.r,:.,: -�.-<:
>,,..., ...._ _ ...... _.,,_., . ._•..•..:.,,,.-:�i.�-:x :,"f':-�= -- - ,._..:;,.:.
1
:,;... � ��,�;.,
..r....,..:>...s;;,-.�:.._,.:r�.:^...^:.;;.:..::-s:�.;::=5:-... ....__.ui�'!="�`_ ' - _ ' '
.. i._...... n__._;... ....._...a__,r;_.__ x_, ' _ - - -
..:�='
_r'.. ... .-.-7.--:._.. .._r.-..,_. �.._ ^:_::?i'..,�.:r ,„_r>_.�;cL• _ ' _ _ _ - _
,:�a�..-:�:
................... ..._ '_.. .� . .. _ ,.':::==s':t!:. .ru. :c _ " ' _ ''
,;•":'y•i�..:.�
i_...: ..., i_...__. :..�.�,=.;:::_ .__ - _ -
.. ........._..._....._ .__._ :•i....�.:: .. ..., .__;.<-..-,.:�._.,�....:.:,.�--:;>�.��._.;:-.,; _ __ -
._� .._..... ........_...... ..�...r..�. ... _.�_„ . ��.!-.5 . ..._d�.�.._.a. . _ .� :...�.; _-:!r:
. ... . ...,. .�.......:r...v..... �-,.-•_.:. -. a.'_,.....e :�- _ _ _ _ _ c:�,•:
. _.. . ._....._._....Y�i....v::.,���, ...... �__..,.,T:_- - " - '
_ ' . •"�� ''
. . _ .. . ... .. ... . _
. .... . . . . . . ..,._..... .. , .. _ '_'
_ i:
; .-.. g `•-r-Ly . _:
:3��` � � # D ��,`��� t�S ( ,�`�� ''t.
_ ��� ���+��� -
,� ���� � c
�_ ���,� , f.�_� j�
�:;: � , -_ .,;:
�
t:_:� .�,;:�.,,�.�� ��i� � ,:,_
.:,�
i��
i �
^ ��� � �,
'`t'' .'�„� - :��a:��e.i��w �:z
; _., �`L� ��] .:
�. ii,a
,�- --i.I"'`t d,i•- �-r �"rV C��7 i:2
�� � ��..�,s�.- . .� -�. .�t.:.'�L i'C�xi . :i
:s"='
� � ` ,. ._;+.•,-..... ,;'.
� �:�..;�_.,�..,.uerw►-- w....,.«�r-:nsa"'_._" .'_ .{i'
a� ,�-.�+'-�..:�,..�..- � .....�. ..... ,.._. � �
�: r�: . . ,. � ' � ;�'
, :' - �'.��t . _ , : ' ./,~^,` -
:� �lj, �' ��- ' �� � ��- �F7`� j
^� .3_, i 'i �t I� { i ' � � � t ' ' -; �
I ' � i � ' �� �t� t �y/ ':�` �
3. i � / a:.t. S, i,��+
ri: � j ,? r ��r,�_ �i.� �ti- 1
�-'� l.� �i� 1 �'.�+ j� � � s��+: z; _
':;�:^i � � � �=S .
? � . „ _, � �,;
r_._.� .�'-,`t= � � `.� t:~`
�l _ . y`��� '
� �' i k
j�.:.5:% Q j' � � .�
°' t �j
i.`:.;- � ��r; 3 t� � ',� -
�`:::
li::;:�,�,::=: "..:�:_:�:-_"._.='_==�a�_�:att:::::�`-'_:��_.::' :��.�:.-�:..,.;-:.__:c:,.,:.:��'.:..-.:.-=,-.-,.�..�:_..-y _ -_ ___
-- ...,.._.< _.. _.. <�:>:5--'-.c_•....:_., . _ _ - -
����t. � . _ - _ :'"' +x�1��"�.
�,-.. . .._.._.,._,.. . . sy. '.•:..'._.':.. _ '-• "" " ' _'" '
, ...,. . - -' - " '- ' -
. ....... . ......�-� .. .....- r_...::::.:-� . ':�....�_C���:�5_��..�:: ' _ '
-...���.��.,-
� - ...__....-..s.... ..-.1-...f.�-.:.....-Z �r�' :.�_,.::�.._,....... �.... .. ...::�:.•:..1.��•" _ ' -
:�..'.::�'_
....... ....._ ._._..��_._ �.., ...2`..'��..._. r-_' __
_...�,�:'�.��': _
4 ..............� .._..•:"r� .��.1....Y .. -..... . _. -._.. ..... �:�� ���i. _ _ _ _ -�';'.S:_:�''-�-
,_. _.. . ..�....._ _�._ ....i..�. �....._. _�.._�......�.�.� 't..� � _ �. _ �
_. �i,^_"' ........_. ....r.�t.....__l:C"-.. _ -
_ _ _ ._!:i".:��'.'�� _
- .�t_... __ " _
_'(_;'._:...�..;__.�:;."_ _ _ � - _ �
_ " ' '. ...�.:� .. - . _ �
.....:..:::.�.. ....'S . .�._.i. -
... ''.�.�1.
: :... .. . __..,.:"-'... _._._..1�;:.-� ...^e. . ..__-_ ._........_Y�:r.""'^l}�:.Li - '' _ _ �
..._...
� _ �.'a.:.'�^j::" _ _ _
�:�_.':._._...
� _ .... .._.... �_.. . �...:'.^.:":......._.._.•.. .,_.. ....�._.�:.�....�.i^L.. "Ji....�....... __� -
._.".._'_.. ..._ .... _._._ ._� " L��::':.�.". _ -� _
..... . .- �.........�......�... ...._ ...�..._..�'_.�'_.....i1T..r�...�..�':.�-__._ - _ - �
{ � ......, r�__... ".f..��. ...-. .__�:..� _ _ _ �_
. . . .. ........... .. ..�.._::_._'�. .. ".L.....��=�::t�..T..��.,..1X'Al::�j,.��-.::• __ _ _
c ._ ,. ......_...�_.. ..._...S.�.i_;'_� �::� __ _ _ � _ " _ __ ' '
. . . ":.........-��_' �. ..i:.::.:�ai�._�_'�.�_.. :....-t:.�i'��'L�:1i• � __ _ _� �_ _ _
+ ._:':��....,._._...... . .:........�.......__.;...._-.... ti�::�3__ L� ... ,.:.,:'...�..:�.;.�.:.': '::'���.. _ _
1 .�., t...
. _ .�....... .._........ .�"a':...�..�...... . _ _
�i. ...,.�.,..._..�_�_.. ... � _._..�.:::�...s__:.:-.�-`:�-:^�,:. ..-.._::!.�S_::::.::.i'.r��...•�.32��t'....1�=c.•::_'::'..�..:� _ _
. . . _..�..:`�;::.. ..�:..� _ ..�.. .._ ..��"._n. .....�...�..__.' -.......;Z��.i��_��yf.•�..':�'__ �. '�:"::'- - �_� _- _
::':':
�.-::'. .:;:.:�!:__�f. �; ., . . ...�.r__...� ....., .�.::::•:��"::';�:r'i �.....__���.��.-_. ... 1...._r[.. .. _ � � - _� _
- - - - - :��y-�r:`:;°::'::
:...,:::.-. �.
.. .._...:.......:::..:T�:.wc�'�er.+car�servatmn.;�ri�.. ..� e-�s:b .`A�4e�.� .csrti�ri.� :
._:......�.._........_ -- -
._�... ...:-::..___... - - - --
� e:,,�:�:�::
. _.�._. .. . .�,:�...:._. -._._._...:. . - - - - - -
.-.-. -..: :.....:::....._�,��., -- - -
.. __... . -._....._._::::>=:,....:.:. �:r.._,_� - - - - - - -
- -- �-_ ......_ .. . _. ,.,::._..._:�.:�.�___a _�-..;_� ;T�,.:-.- - - - -
�,,...... ,.._...__ .:.:-,Y. .....:�-. Y. _ _ �::�:
� ... .. _. t...... ..-. . .......
� -�- �. ...-... .._.___.::�.�t�.._•;�r_cn._.�r._%x.._�:rc=sc:u�.�5..: - - " i=�:.i��.i::;�'. _ :�:1!`=:�iiy,`i
. ... :�_.._...�-::-�=.i.z,.::_.��r:= ��: ...f as..�,...,. 2':''.?' ' _' '_ '
�n. •.:.. ��:..._.__:, � .. ._..'. X:::,=�.:.:�. -,-::;"`;':a::�...'_ - _ " ' _
.�. ..: _ . . .. ._ .....�... -"... . _..._...... ___".rr.._,:r. '-�-N'>::?*i�iii.i. _ r.:c''i ' " -
_ _ ".......�..
:.�::c.'r.:�-
:':i:
- _..>.:� .r...� - - :s3�_.
• .I::�..._.._ .Y._r•.�,::.-__..�:...:�.-=_::...... _
- - - - - =-�: ' - - -- -- '
� "'_.,__. . - ' ,•:�••:' ' ' - -- - - ''��
�. , '•' ._.�:......�.:_-e - - ._J�..
- _ _ ' - --- �.?e•:yi.'.�e:._•'� ' ' " '
�t-1
, .
. .-:�:-_.......�.--.i::'.:::.r:.:•_.:::-':__:.
. ..:., ._-_.._.. .....,,:s_..._.::.J..-�-... c'• - . . ax::;: ::s='i{?;:e'.~r�-
...._._.__.c;:. ...... ...al. ..- ...-'
.. _.:._._:.....__�.�.. ' _'.'...... _.-...�:._ _ - - - - _ -_
......... ......... ."'�• _:e_.i...._i_:��::-::_ . ...,,�:....r.:_..... .�i�z._s,,� _ ' _
"':,;,. ..._ . . ..-
- .�"'�":-.� �...:.�.:� ��.;c,�-{
;-,��. _.. ��.
.._..z .-._..._.. . . . ..._ .....-.�r.� . ._..-�;_.-'.� r.r._�...-._s-..�_r.:.:::.. .... ._ '
. _ _......� ....._.._... . _ ..__...._ .� . .�-,....._:_-.�._..tL:�.r::......-.,:s__'__-C..`.__:_:?::r' ':Jr::;.:_.sr�' ' _
....:-_.:.:.•.....__.... ... r.;.......cc_ •.-"'...�......_ .._. .v.r.._.,.. .�.r....._....._._..._._ . - - - - -
`.:i'i:';
���_t�-4n-`..�
. .._ ,_...._...._....... ..... ._,. ._.._ ...... .�_.�_.:..__..a.. __.......__..._r: - ' _ - _ - -
�.. .... .. --"_.............,_.... ._ .. ..-.-,_..........__...._.„..._„ ..... - - -
. .._.. ..r,-'.�.,..''"-'-.:,;?.:::�:::....,..._..-..-: • - ........... - -- - - - _- - - ' --
.._......�._ ....���.,.�.. .-.��...e r -
... . ._..-....,...
.. .. . .."',''_":::.r:;,.,� " '
.. . ���_.. ..' -. .•. ' ' _ "
} .... . a.ti._-i?.:,_„_-'.. ..._ ...._..<:'r,'::=. :'I`!'.
..,..-..-.... ._._--..._......._. ' - ' ' - -
. .. . .......:._. _. ......--'-:v., -- - '- - - - ' '
. ...- . ... _.. ........ �-.':��:..�_.�. - - -
.. •.......:.:..::........ �,`_
.�,- ._._ ;e..., ..,�_::::_:-
. �._...r:r" . �...._ c....
.' '_.'_'.:::�......_.__� ...........__._.....->.,...�• .___.._...r...�:.:::�.. ............:. ' ��'t:::'
d.. .. . .... ... . , .. ._ . •.-' ---...._.._..._ .,.... �. . d.__. ..�..._.... _.... ..::t - - - ---
. .. _.... . ,_ . ... .,::rc.__.•..:. -- - - - - - -- - - ' -
.."_' ..;:r: . �...: _. ._.... .. ' '
.. .. ...._.�.... �r._a.. _ - _" ' _
. -- ..:__.... ..:.. ........ :..y_.;.....'a::;'x , r.x^�ci':ii?'„'. ':.-7._�":;�,
-.. ...,_...:...?=� ... _..r
.va i-.�-
._ _.- . .. .o _ .°•;. ..r_::"'' :. -:•l•ts. Z' !'.a�e_.�. ;- ._,_:: '��,.1:',IeS=_'�,i; ' " .�,'.:-j"�':' 'r�i:::':i•
c '`'_� ' ' . '"_
;��: `:r- sa= - - ' -
_ ' k' : -''F'1,. iiS_;':
�:, � n .:: - . , _
_� --r�_�. � -. --�"�, . ��i� . _ _�c�. . - -,:fi��- ::;::
. _ .._...... .._.
. . .._�_.e_ ���� _ . c�__�:. :::t�► Ec��r�. _r��=:�c�ti=������� .�n�.::
..:-._ . . .. .
.:. ..... _ ..... �.._ ...;.::..
. : : :.__----..-::,:��_��.-.r:_� ��. . ::���!s�_ �:t,.��r__; _ - - __- _ _ - - �::,
..0 .._........_.. . ...r .. . _ _ . ' '
1 . _
t::?=.t:
�.:sL:ic4u:i:c1�;':
......_._..._. .._. ... . -
.._.... ..e-n'._•,n::_����.:..;et_c.__.. ' ' '
. :..__......-.�...� , _•'r ..�...r.s......_"'w '_ - '_ ' "
....... �....t,.... ... ......._._..._-">::�r+�..7:"-a:r.���s_.�yii..,_. .....c_._-_.._ r'�,' ' ' .... �;;;,,r'::�:': =_
' ...... ::,.. :cv�• _ ' '
._......�." "__ _-,........_. c.__._�.......�..,.. •'_'__...�r-._.._a:::=.... _.......�a:�_:;•'. .... _
� ._.. ._._ �. - - - ---...._ _._ :__...____.. ��-•r, _ k=:-::;-":-°._:�:1�:�;: _
...:..-•_.,•::•>��.��..�,.::.��.,..—..:,.: _._..................>.�:�.�-__.�.:.__ ,._-,--:.:�.•- - - - -
r�...,.:-:::::=�._�_.• -...�..��, ,.... ._ ...... ....... ..:.:...:..;:-;;
:.... ...._.. t�.s.._... . . ..�::-.r.:.:.x�-i�1••_r_.J.-_l��.::.:._._.'..�„_........—;::�::::�'_:.:.:.'-'.•.;_..�'.;.._ _ _ _
.:..... . ..... .._.._ _..:__ _.._.,;...,., . .a.:x:.i .r:,r r _ ....-_......._ _- - - ' -
- .. .r.r............:...�...".saa�. ...._.v._.... ..r.:i......._. - _
_ ......._.._.
2'I�i
.�.-.... .
...._...._._"':::•:._ ._.......,._...•"'..___......_.__ _ .._:.._. x._.-..r 5—�a._is..............__.��;-s"co-i:�'�•�=i:r.s':e::`:33ri'i:;y'z.,-.;'o_
_. ....._..._. .... ....._.._...._.,_ ._.....:.�.:-�=--��a�..._i'_="i���- _--- - ' - - " �' '-�r•{'�'
,;. .,._. _. .. ... . -- ' -
�-'=-�'�'--- .._. � :..:..........._._.,.._,,•._..:�:r�:::-.-_....._ .rE..s.x,._..._:-._ : :"''` - - - - -
...._...,._. _.......r.• -.:...<:r�_, .__..___._.._._ ..._..:v�- ` ' ' - '
":.
.�..��: ._...
.::.. ....^.-�
:>:-z�.::_ u'.:.::sa:^�-:�:-r.r:, ..
..._.....:c.__�... a�_c?-i�::,_ ..... .._..._L:-::r_„ ...;,d::
.'I�...:::.::.:::.:.......:._:.:::-:s-.__.. ..: '.-�-�cE"'•"e"_"'•'..-_._._.. , r*r^p•rr_.. . - 9 . ' _' ' " ==?i.o:
._......_...._.._._-. :_._�:.:"-....._ .._..........._ . " _ __ ' "_ ' - '
... _....._.."_.._c-.:c.. _._..._........'.:.._.._.;...___:,-:..::-r"'".u•:.:.�ca._..sra . _ � .c_. 'ii?: ' :ii"'°'�':..�, •'`:: ,. n:.r_
, ....._...._...:_.:..-.. ,... _._..._.,__........ ..,.:...._...._......,._.�_.._....._.r;, -�E?t,K1i-�.....- '�1�fJ�:';�° ,- - - -
,.__...._.. _'_�_�.........._�....I�:.Y...�.�:'."_�-�- .�...�.�......'u L�� ......�._�^�:" � _ �.� �
.......�...:..._ �..�.�....�." . _ _
f __ _ �;::'��
_.........� �_:�:::.:-��:
--• -----.._..._._...--�--_.. ,-_.�.... --•-----__.__ - - -- --
,__...._..::.�:.-:>-:::_-:__-:�:........:.�-�:�.-_--.._. ,_..._�,_..._._Y-=��-�"�+ �''- , -�±it5 - - - -- -- - -
.... _..._. ------..-�:�::=�:•. -
.._.._. ._ ....�-�:_::
�..... --........�__-�:__..�•--«::•=-•�._.-__:>>��...____�.---.�,a__.�._ .._C�J-ili-fTY'. ,��±rtc;t-,;�';:���:e�h�a�:r1M.,:,4�,enai;;:�:.
..------ _:.._._..,._:::: �-_..._..._ __...�---• - -
,._._.._.,..__._.._._..._......_.._._.__...__.. �--= - - - -= --- - -- --
!._..-------__�-- ......._.. .�_.___._----'•- '---.v:.�::_,,.-__.:,_`�.,,-___._.,,_. -
........_ _.___....-�:--._.._,r>.__._....._..__..__......::::,> . 9 . i_:_�____�:.�......_..-:�_:a•::.... .._.. ._ - =- - -
._._-_ ......_....._..--'-.-:.�.....»....r_.__...._'-'-.-"'�:.-:�..."-_r .•::n:a::..r.7e_..���:...."'' " v_...a_:::.>:_:.:.�r.:-::..:�:��_ -- - -
. _.._.. ......_...._T:......._.__.......-.«.__._--.__.•_�._r.__.__s..........___.-'_ _...u.--t:_"....:.,:,-_c_:�_.c�'- ' _ ..-'r_ S��F':-`�'�?_.r"'.
, _ _....e...:_rec:.,...._._.."'....i...--'.-�-r.:..-.a�.........'__'..�__...-..i.._..� rL-n...._.._._._._:..E.:y�_ - _ _ 'i_r::� - _
-.:�:.....::_._\_.....-..._.._....::ac.�v^'=:�_...__-.i�....:_,_._.....__... �....sx�::�-v--r::��'��_':.... " _ - " _' -
.:.._ 'c°''.:::
�...:r...... ....n c.-:�.v 7�...:i:,-i
. ......_.. --.._..._._..�_'_"......_.=:::<:r.:::-_.-•:•:..:.:..::.-:_:::�:�.c_!.:::�-....�..s:_.:-.:::•^. _._..._ ._�-i�� ' "
�.............:.e,=:_--•.--:-:.�._..,... ._ ...... . ._.,_....--.,..._.-...;<-:_�:='_":-?:t:""�:�=:,;::'[:._...yT _ __ '
.. ....,....�----.__......__. _.....__...__.._.._�,----..._....;_.;,::....�,.._.,., _.-_--s..._._....._:�_.:�::_._._..._...._.............._.......�.�, ':rti:lo�':�o�wsoi:�:''�•.:`�:
._........_...._....._.... ..._�..��::,-�..,�.:�::.;_-:..-.: ,�_. ,� _.... ,,"��.- __ - - " :- _ _ : _ _
_ ._....__..........._...---- �..,. .___._:�-� .s,:_-;-_. .... ... _..,� _ _ = -
......4. ..... .t;�s
... �...�' �_..._._._.� ..�� �r„'_.'�-.'._.....-'.."•�.._.._�..��.y. ....�____.�__...�'� _ � - �
. . _. .._... .........__.....n.____"__. ..:.:........_...f... _:c.}'_._.._... _...... :. _ - - '
� r'?:iii.:.
...._.. ..........
........ .__....._. :...�... __.�_.......: ._...«�...-"__ ..._ua�:::: ' ' '
..._.._.....__ .. . ._........�___._....--....""_,""=;= -.r.._.....t:...:e..___...__-.^_'::''"'"�'a:-•r.,:.i::«:;..� - '- ' '
. ..._.-. _.._........_.._.... ,._..-......_._.__................_....V ::�.ic:s.:�a:i._...s,_._._._.......ru.:�::r:--._..c_,:._::_.. ...:!'iCi�::i: ' '
�..:. ...._.......... -_......�. .._......,.,..._.__._.�_ ' ' _ '
. .. .__.�.__-_..r...._...._..... _. _ ._.........._.._.. ._.�.._.i.sn:c:...-.:�-_::._�.......:-s.;.::-c•.... _ - -
. .. ....._........ . ......._....._....-._. ......�....._ . . ......__..�.....�-:i_........__..._........._.... .... - " ' �ti��:^'`�.
�..._._........_..c::._�,:.. t ...... ..__....,-....�.:�-::_:.:.•�:._.:.._..............._�_ .-'.o•._.._.... s_....'""='::�t:'r:c::��::ia '?}:'rzv`r _ _ '
.._....-...�._r.:....�.....�__::a...a.._....._'__ _ ........__._.�.»_.�_I,:.Y_ r_........... . -r _ - _ '
. .. .. ...... .... ...........__r.c,_�,.. _.... . .... .�..3'•:_:.-:_i:�-..._..__.......; _ -
-....,.. .:....�__....i�_s..�^:..•.':-......r.�;.::a�.z..s...._ _........_.�._.�..:""_,....:.....;.. ' ' _ ' ' '
,q...;-....::.--.......-.............. ......_..._� . 1.._..: - _ ' ' - '
� .._.,__ ._... _ .. . _...z._........._ •---�---.._...:•.-:.__..�•�.r,..._--....__..._ ._ . .:�_:�:. _
,.. . . ............. .�_ ..._ ::-- - - -
,
���:::s. _
... _.. _ ,., ...._.__..-::, - - -- - -
,::_.... -• ... - -
... .....�:.:.:..::,.::_.:..::_.i�%'•�'z:�.:.,....,.�. -. .:::_.. _..-.:__..:.;�.:� ...YTr::�:::�: . ' _ _ - - _- _ _
t .....t... �.�...:::� .:'-;. . ..... _ _
C .. ... . ._ ... .._.: � . _;.:_� ���....��..:...,,;... _ '
i � I
H T
SQ U S "c'q=``�F
•�_
.g�S `� �`bt . -
e��� •1450-Y�s� ' `� .
`"��,`;." _ S�Q►
U71LRY D1
WATER CONSERVATION-SUMMER 2000
A COMMTJNITY PROJECT
With MTBE contaminatian of groundwater welts an onQoing challenge to the District water conservation
becomes critical as the busy summer season approaches. The District's water conservation relies largely on
our customer`s prudent use of water. Water is a grecious commodity,especially in the arid west. With 12
of our 3� wells out of service it becomes necessary for the community to use this resource wisely and not
necessitate the imposition of mandatory water use restrictions.
The decision to impose�vater use restrictions is based entirely upon community�vater use.and how close that
use comes to esce�ding the capability of our system to groduce enoueh water to meet thase needs. By
voluniarily observing common sense tvater use guidelines we may avoid the imposition of�vater restrictions
that are unwanted by us al1. The city of South Lal:e Tahae is,historicalty, a"can do"community,especially
�vhen given a specific chaIlenge and a means to achieve it. Pfease take a moment to read the followine simple
a idelines that may spare us all the incanvenience that mandatary restrictions require:
� Set your sprinklers to water on odd/eveR days based on your street address. If your timer dces
not have that capability, use the following formula:
► Odd address: Water l�fon-Wed-Fri
► Even address: Water Tues-Thurs-Sat
► Sunday: Water Tank Catch-Up Day
The goal is to have only 50%of our customers watering on any�ven day. [rrigation alone
doubles our water needs every summer. Water savings potential here is great.
—� Don't double watering duration times to compensate for every od�er day watering. Tahoe
soils have limited water holding capacity and e.ctended watering wastes water.
� Water only landscaped areas. Watering non-landscaped native vegetation only utcreases fire
concerns later in the fall. The plants wiil grow tailer before they naturally die in the fall
providing a greater fuel source.
� Use automatic shut-off nozzies on all hases.
T�an,�y 6m�'yaul �e�/
�
�
South 'Tahoe Public �9tility Distric�
water resf�ic�ions aPe in eftec�.
Vio/ators are subject to fie�es up to �5d0 and
water s�ervice shut-off. [�rd. Rlo, 469-99�
The fopowing water restriction viaiation was observed at this property
during Stage _1 2 _,3 4 _5:
Stage i-Norma!Candifions
❑ Water flowing from property
❑ Leak(s)in plumbing and/or irrigation systems
❑ Impmper washing of motor vehicle '
❑ irrigating non-landscaped,natural veQetation or undeveloped property
Stage 2-Minor Wafer Supply Shortage(Stage 7 nestrictions a/so apply) �
❑ Watering lawn/landscape behveen 7 a.m.and 7 p.m.
❑ Serving water to customers prior to request(commercial establishments)
❑ Washing sidewalk,driveway,patio or other paved area.
Stage 3-Severe Waier Supp/y Shortage(Stage i&2 res�ictions alsv apply)
❑ � Irrigating on weekend �
❑ Irrigating on improper day(odd/even address system) :
❑ Fitling outdoor swimming pool which is not covered during non-use !
❑ Operating omamental fountain or water structure without recycling
Stage 4-Crlfical Waier Supply Shortage(Stage t,2&3 resfricffons also apply)
• ❑ Irrigating more than once a week
O Irrigating new construction
❑ Using fire hydrancs improperly • �
S[age 5-Water Emergency �
❑ Using water for other than domestic or commercial use
�
Property address Date �o��. -�'�� l
�uvu� Ll7uYY d�hTP��cT �
544-fi474 :
Name of issuing agent Control#
otice of Water Restric�ions
Effective June �'
As a result of MTBE con�amination of groundwater, the South Tahoe
P�blic Utility District has been forced to discontinue use of a substantial
number of the District's drinking water wells. The ability ofi the District to
meet the water needs of our customers has been impaired and it is
necessary to Empose water use restrictions, effective June 1.
�e�d�tdons of fhe f�//owin,g restrictions can result
g� �n�s o�asp to .�500 ar�d water service shut of�
jOrd. No. ��59-99J
1. V4'ater users shall not allow tvater to tlow Brorn their propertY on:o;inpervious suriaces or
adjacent property.
?. Water users shall repair atl !eaks in plumbino�;�d irrigation��+s:r.sr.s.
3. Hoses sha[1 not be used for�vashin�mc�tor v�t!ic!�s withou�a snat•�ff��nzzle?itached m
tt�e hose. Cantinuous�jischaree from hose nu?z�e:�prol�ibited. Notv✓ithstandin�a��y
� pr•�vision in this Secti�n ta the cantrary,mo►or vehicles yJashir�may be d�ne at ar�y time.
subjec[to any othet a�plicable la•�s,un rhe premises of a ecmme;cia�car wash or service
station.Furthe�,such washing is e?cemptad fr�im these regulatiens wne:e the heatih;'saiety
ana welfare of the public is d�pendenc upon frequeni vehic!e cicanin2s,such�s QarbaQe
trucks and vehicEes which transpnrt food. `
�. ?'he us.,of waier to irrigate non-landscaped,natural vegetation or und�ve]oped prope�-ty is
nrohiuited unles�necessitated by 6re prevention considerations in cases of severe fire
danger.
�. Lawn and landscape irrigation shall be permitted between 7:00 p.m.and 7:00 a.m.only,
s escept for lawns planted within thirty(30)days of commencement of Stage 2[June 7,
�. 1999],provided,trtigation of lawns,gardens,landscaped areas,trees,shrubs or other
� plants is permiited at anytime if:
i:
a. u hand-held hose is used,or
b. a hand-held,faucet fi]!ed bucket of five{5)gallons or less is nsed,or
t- c. A drip or soaker-type irrigation system is used.
5. 1Vater shall not be used to wash sidewalks,driveways,parking areas,tennis courts,patios
or other paved areas,except to alleviate immediate fire or sanitation hazards.
7. All commercial establishments where faod or beverages are provided shall serve water to
their customers only when specifically requested by the customer.
�oc�T�- T�r-�-o�
pUFjLIG C�Tn��TY l�i�T�,iGT
544-6474
Appendix K
California DWR UWMP Review for Completeness Forms
S L
��� � E �� �� �E E E�
iR i i Z 2 2 2 i i i i i Z Z
6 6� d 6 6 6 1 d �M1� R 1 d
!b! �!b tl W N
�c �� O o �s c�
S,�S u S ` : oS R.^, oo _`.5�
€ rc rc¢` rc rc rc rc ¢`z` ¢rc rc¢rc
0
LL � d� �N �Ala'I a.��'Ifil
q �� ol I I I I I
O
O
a �
ui R� ��
� �
��. E ' i �
E '
Y o' � o n% 1 0 8
K rc� : � s a� o
c �g � ` - :� ' ;
a � �, ■ �E
naa ��� o� o oS
a c � ' � e
oF �S5 � aS y� Rrv EE
w� �J� �u t ;� s °
a �, _ £ � n
�m ° : ° a i: fr E .Y
q � � 8 � Y� �o �N �C 3 g g
3 a � x �o s �
c S t �a 6� id�
. �o� o - � � �s o a a
j ;€� E �.o `o$ yb i3«'_
o :=a` y • " o� E a ';3
� � °o � 5 u E� �� Y„ ��:
� 3 �' �E` E� QT� � -.
s r : � � � n y
3 B �� o � � �3 �� 5��
� g� � z �� oS ? $a -
� o` o o z u 5 a _ a
'❑ ❑ X X X X X X X X
.�, , :5 S B o 0
E E E E E E
i Z Z Z Z Z
�'.
�� ou'a'�a`aa
�� �u o
,'�,� '� o a�o i o
rc�¢rc rc¢`
9� N f 1
<<� �
.� �
4 �
'� � � � � =o
' � � S ' � gfi
$�� _ �o �
" a�
iF� � � a s' �
.€ .. �cy o� �
�N � E����� S
��� •� „
'�€:'a �
p E $!Z�
I ��� � ���m�a �
I X X X X
�E E� � ��E E E E � E E E
z'z'iz' i iz'i i i i i i ii
a a a` a'
b b b a a b b b b E E b �!b
� �c
K K S K K C C C K K K C C K
Agx �
�� � � a�� � � � � �� � �� �
� � � �
= � ���
ox � � :� � �
4� W � � .�
E S a
^o ^ � e E c�� � �,
a°
r�.g i `~ � �� o gE
$ � E E u d �
_ M � y a E � �
y �x � �� � : ��m i 8 _'� 8 S e
�: � �''� �5�5�3 a 3 L `
- c� ;a m � s c�c�c� � S � b �
^x � o�� '- 3`�3 a " H
#r o > E
o ` ` S
�3 `3Q
�v e Nd y u
`� 3 ' $ 3 _ f:� a
- � ; V H
rv�u � ;s E
S ^ � - �
L Ya�� i .g 5 � � $ S� E o S
o=8x � � 9 £ F$ � '� � r :�
o �§
� . £ �S
��o< 7 S ssa a � 5s
o a E - g € E� "
I ���'�i' i 5 �g �i � ' Sa' �' v�` � m
si<` � � 5 ° �' ooz° oo^z° z°
I � x X X - X
E
0
R
E
� m
' S
E E
R
^��
E E
8 8
E R o E
€€E
���
a Y Y g ,Q
b!b m$n
t��
K K C
E E
���
m$f'
3 E
E n�N �
� n�'
E E o��
S
yL��
RvS
T=S
�X �:3
}'E�
��z
i�� Y
oos
( xxx
3
E
F
<
�� E �E E�E E�E E� £
z z z' z'z' i i i i i z'i i
'Y' a"a" "�a'
b< b MI b b!! b b!�!b
�� o � F � �� � � �:�
o`a � oa oo� ir`ir
rc rc rc &rc rc&a rc rc rc z rc
E H�
� `E �I�� I I �:
I I
o I I I
$ � s ry3
o a
� �
O � N�
� � �
O
o E
� � 5 �'
� ' s
� s' r n S a a LL � ��
b
E � ° �f� n ao
�, o a �B a a:
`a � s �p=���r �3 ��� V,�«
8 3 �°�E$;� ea $
�. �'s�■ 3 p �a'�
e ; M j &S �.. a2 Y `a
e E � o �oa �E�o oXa���R
« �
�@ $ ", s `gY�s:s a �_ __ �
2�����
g$ € ~ o ��'s �,::< <
sa s Q ' b E�ys € �g�jsss �
as � g `$ � ���oz��€ t ;3�EEE ,��
�� ��� � � 5y . 8 5�€R€e�a �3EGii '',,'s� �
az° S�! � ��d� . z°u'5��:` z°o'�o'a'o �<
X V
� � 3 X � r X X X X X
�
€
��� �� E E E E E E� r S
R z'ii z'i z' i iii i i %�,
" � u c • 8& w w —`e
E`� a a a a a' � i� a a'a a a -
� tl tl a a V� b a b b b <b
_ 3� Z� o� "� _= s o E
- a rc¢rc rc rc rc� �o rc rc rc rc rc Q�r
?� r>
g a o
�� ` xxx„o =_"-
�E ( I I I I9 � o s�
` ; �,�n�t �t�t ?s:
� �Z so �
E ��a rv S S
- Eo3 ` �
- �� o£ �
� E�� s� �s
9 e�
� ��� � � o� Y� �
;
� E� o � os 3s S
9 =aa � s`� o� �� s`
-"� �' �o� � ;� x� o� �. g s
�' w`5� $ '�E u: � .o
'c c tl` �_ 2�7 �i g C o E
z'� _'g o E �g :a �� �� �5 i e �
�� a 3 t a�
�° :y� yo' c a •� �fr `s if mc�iw S
��� o$� Y� F � �
,'�t� � ;S a S �3 f a�
.?s' �08::" �' �= 3� �� '�
'cy '¢ o�Z U�_ • ;< � y
fS ��m�ao i� v �' g��`.y .�3 �
g � > > 2 ��
$e :' �S 8 �;� 53
�Z� .S� �� �r� �n� as`a o
�� a � V o E
,� �2 �� �€�<S� Q< E�E �c �$�'. =c �S� � o'o c g� x �
i n`a` �� _
, x ��3� �� � � zxx xx
�E�
E E � E ��E
i i 2 z i i z
Q e
a'
a
rc rc rc rc rc rc rc
x x x < a o
, 3 i E."'n E �
F
g $� 3: 3:
� � � � 3a3o ��� xx
c »; M�� � a� a� �
� . >»>a
i �
$ :`x. . ,
x N; � n �
� �� � ��,.,
� � � .
5 ..y��' w� �:.
� i ?, _ �
; 3� � w� �� o
��: 3� :� � y?�' �„ a
� � .'., ;. �o
� 5 D �2`v� 3 � 5" �S{ �
Q � ,, y��:: g w ^. c' o .;� � '' ���
; � <
� P :'%. e �« �" y o o Y w � o c S .s
St �' �� � � r� a� �
� � ��' ' a———— E� f�5: Z e 8 �� r � ; ; ` E F#�:z;
3' i ;�:' �, b S 8 8 S g& Y��.-". ; Z: �r S 's's = `s�,
� °s `,�. � � a 'a_ 'a_ 'a_ �a :Y.r.� �� €€�
a ' > r �� 7 nnnn :� v � 3 �i�i3 x �
� E E '�, � � � � � � €� / � "� i€� $ i� � € � �r E q„�' � � ^
i . ��- !» E E E S •S;r 6 i� • � o`
a-�:, b $� € fr § � �
s LL$ 5 `�;, aoy` � $a �O 3s �'��"'� �ii € � ! - `°: zrc3u� $$ �og
X X X X X%X
a a
z -
E E E � � E E E E E
i i z' i i i i i i i
� g&o
a a` a a' a a a a a n
! b b b a b b�0 b <
€ � � :tiz
% %
� � � � � ���� �
>;,�
'�;^; �
� � fr a a a "a I '� "a
K � �o
4 � i
Y
,$ o � Y= s
s � = "�� a
e � � a y`
y^` v E � n
$;:i � � S
� `� ' e � � o
�; Y � � "a � - � o
x � � g o ; a � � .
,. � >;� o � _ ;
b o ; N e �
8 0 : ` � o E • -
� i ��' S � � � � � a
� �i c b � �„ x �
� s �
o g � � a �4 5 � �
i 8 # s` . ,` . � � �a u a
g � � € : _ �°= � _
�
;x b � g E ; � €
a � = = s ` EE ' s € a s oa -
s S •'�L � s � � s� � 8 �
�sss � � € = s s �s 's ����€ x`s ' : m
f, g s�sgsg o
i �€ € � � � ��� o�' � a S�iS izii �� o
�
X X X X � X X �
€ g€ � € � g E
= Zz � � � � �
`s
a a a' a' a' a a`
b b b
�
� O
K K C K K K
a �
f � b I �I I �I
I I I I
r
S ' 3 �
o � s
a E
; � a >
% y $
g $o c'a E .4�; � '
'"' ;o �w v E
7 �ot x E E � 5
� �i �3 Y � �-:.
p E � i O ; o
3
.o. c o � e
� • : $
� � �� g� S 3
n .� W p E�. ' �
; � 5F $g E� En �� t '
� 8 So - t sa ;� `�"
� ? �„� a' : :o ' _
� • So
3`s �sa �������P�i �; '� ; s�
i �° ` 'sssssss_ � $5 ;�
� � g� oo ��� �������� d� �_ � �z a
X K X � X X
� � E
2 i z
a
a a
�
¢` rc rc
� d
+g, t":
� h � ��
� r
S R
; � '"'
y t�:
� `o �
� 2 2
8 �i
a
� �S g5
s :$ - � �s ,��
r S -:�a
3 93 'd
sn �� g �
�E 9 E �E
o L .�•� 3� i a ��r:.
�c A� Y=* '� �s
�� �� ��
°s R �`s �o
5� �� �a
�: �s �o �
�' uo a`S a`S
x x �
E E E �E��� ��� E E
z z i i i i i i 2 i i i i
� a a`n' a
a e <d a a a e e
£ �
¢` rc ��a a rc rc¢`rc rc rc
$ � U U U U U
A 3f,� ` a, •R' ��I<I<I$ I I I �I �
I
I
I
� _
Y �
� T:P §� � �
rv H �; ." c o
S
� S� £ � s>s . � $ 'k
a n.S �R n °u� o 0
E ? �s Z _
g� °z � s� o �� � �
:s `= .s =`.'� sa E o€ g �
_ � -�' �fa� �a � -
�� � � c �� b = �o 's s'
=a y� g� �;� '�4� ��' c� E �� e �
a� 8� a �5 0
� $`° �g g o� a� � �
oa ga „
� � �60
�'�'� a� ` ox gEoaS $aa � s
�� j `�3 saaoo E�� 3
� s� �a �en o
E i 'E i 3 3 u�8 9'E �
�� o 0 3 0 �2 3 3 �E� g � "
p� a`� a`3 �w S a`a` rc�$ a` o°
❑ � X X X X X % X
Appendix L
California DWR UWMP Review for DMMs for Completeness Forms
Appendix L
2005 Urban Water Management Plan"Review of DMMs for Completeness" Form
South Tahce Public Utility District
Implementation (Section 10631(�)
X❑ Desaibe demand management measure currently being implemented or scheduled for 6-2 Reference&Page Number
implementation(10631(�(1)(2))
Year program started 1999 or Year program scheduled to start
X❑ Describes steps necessary to implement measure 6-4 Reference&Page Number
Table A1
Actual 2001 2002 2003 2004 2005
#of single family surveys 0 0 0 0 0
#of multifamily surveys 0 0 0 0 0
actuaf expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
Table A2
Planned 2006 2007 2008 2009 2010
#of single family surveys 0 15 30 45 60
#of multifamily surveys 0 5 10 15 20
projeded expenditures-$ $0 $5,000 $10,000 $15,000 $20,000
projected water savings-AFY 0 0.4 0.9 1.3 1.8
X❑ Describe the methods,if any,used to evaluate the effectiveness of this 6-4 Reference&Page Number
demand management measure(10631(�(3))
� Provide estimates,if available,of existing conservation savings on water use 6-4 Reference 8�Page Number
and the effect of such savings on the supplier's ability to further reduce
demand(10631(�(4))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table A3-10631 (g)(2)
(10631 (g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impact 8 technological factors Cost of Water(S per AF)
(10631(g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
2/7/2007 Page 1
I
Implementation (Section 10631(�&(h))
X� Describe demand management measure currently being implemented or scheduled for 6-5 Reference 8 Page Number
implementation(10631 (�(1)(2))
Year program started or Year program scheduled to start 2006
X❑ �escribes steps necessary to implement measure 6-6 Reference 8 Page Number
#of pre-1992 SF accounts 9339 #of pre-1992 MF accounts 1014
Table B1
Adual 1992-2001 2002 2003 2004 2005
#of single family devices 0 0 0 0 0
#of multi-family devices 0 0 0 0 0
actual expenditures-$ 0 0 0 0 0
actual water savings-AFY 0 0 0 0 0
Table B2
Planned 2006 2007 2008 2009 2010
#of single family devices 20 25 30 35 40
#of multi-family devices 10 15 20 25 30
projected expenditures-$ $10,000 $15,000 $20,000 $25,000 $30,000
projected water savings-AFY 1.0 1.3 1.7 2.0 2.4
X� Describe the methods,if any,used to evaluate the effectiveness of this 6-6 Reference&Page Number
demand management measure(10631 (�(3))
X❑ Provide estimates,if available,of existing conservation savings on water use 6-6 Reference 8 Page Number
and the effect of such savings on the supplier's ability to further reduce
demand(10631(�(4))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table B3-10631 (g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impact&technologipl factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)&(h))
If AnotherAgency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
( 2/7/2007 Page 2
I
Implementation (Section 10631(�&(h))
X❑ Describe demand management measure currently being implemented or scheduled for 6-7 Reference&Page Number
implementation(10631 (�(1)(2))
Year program started pre-2001 or Year program scheduled to start
X❑ Describes steps necessary to implement measure 6-8 Reference&Page Number
Year of last complete audit unknown Year of next complete audit unknown
Table C1
Adual 2001 2002 2003 2004 2005
%of unaccounted water NA NA NA NA NA
miles of mains surveyed 0 0 0 0 0
miles of lines repaired 1.24 0.55 0.93 1.00 0.92
actual expenditures-$ $1,766,615 $778,467 $1,323,081 $1,429,517 $1,316,512
actual water savings-AFY NA NA NA NA NA
Table C2
Planned 2006 2007 2008 2009 2010
%of unaccounted water NA NA NA NA NA
miles of mains surveyed 0 0 0 0 0
miles of lines repaired 1.75 0.75 0.80 0.86 0.60
projected expenditures-$ $2,493,513 $1,070,000 $1,144,900 $1,225,100 $852,000
projected water savings-AFY 68 68 68 68 68
X❑ Describe the methods,if any,used to evaluate the effectiveness of this 6-8 Reference&Page Number
demand management measure(10631(�(3))
X❑ Provide estimates,if available,of existing conservation savings on water use 6-8 Reference&Page Number
and the effect of such savings on the supplier's ability to further reduce
demand(10631(�(4))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table C3-10631 (g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impact 8 technological factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)8(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
2/7/2007 Page 3
Implementation (Section 10631(�8(h))
X� Describe demand management measure currently being implemented or scheduled for 6-10 Reference&Page Number
implementation(10631 (�(1)(2))
Year program started 1982 or Year program scheduled to start
X❑ Describes steps necessary to implement measure 6-10 Reference&Page Number
Total number of accounts 14568 #of accounts w/o commodity rates 13767
Table D1
Adual 2001 2002 2003 2004 2005
#of unmetered accounts 12413 12752 13090 13428 13767
#of retrofit meters installed 0 0 0 0 0
#of accounts w/o commodity r 12413 12752 13090 13428 13767
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
Table D2
Planned 2006 2007 2008 2009 2010
#of unmetered acxounts 13838 13909 13980 14051 14123
#of retrofit meters installed 0 0 0 0 0
#of accounts w/o commodity r 13838 13909 13980 14051 14123
projected expenditures-$ $0 $0 $0 $0 $0
projected water savings-AFY 0 0 0 0 0
X❑ Describe the methods,if any,used to evaluate the effectiveness of this 6-10 Reference 8�Page Number
demand management measure(10631(�(3))
x❑ Provide estimates,if available,of existing conservation savings on water use 6-11 Reference 8 Page Number
and the effect of such savings on the supplier's ability to further reduce
demand(10631(�(4))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table D3-10631 (g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Totai Costs
(10631(g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631(g)(1)) Time Horizon
� Evaluate customer impact 8 technological factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
2/7/2007 Page 4
Implementation (Section 10631(�8(h))
X❑ Describe demand management measure currently being implemented or scheduled for 6-11 Reference&Page Number
implementation(10631(�(1)(2))
X Year program started or Year program scheduled to start 2007
X❑ Describes steps necessary to implement measure 6-12 Reference 8 Page Number
#of landscape accounts NA #of landscape accounts with budgets NA
#of CII accounts 764 #of CII accounts w/landscape surveys 0
(CII mixed use meters)
Table E1
Actual 2001 2002 2003 2004 2005
#of budgets developed 0 0 0 0 0
#of surveys completed 0 0 0 0 0
#of follow-up visits 0 0 0 0 0
actual expenditures-$ 0 0 0 0 0
actual water savings-AFY 0 0 0 0 0
Table E2
Planned 2006 2007 2008 2009 2010
#of budgets developed 0 0
#of surveys completed 0 20 25 30 35
#of follow-up visits 0 10 15 20 25
projeded expenditures-$ $0 $5,000 $7,000 $9,000 $10,000
projected water savings-AFY 0.0 1.2 1.5 1.8 2.1
X❑ Describe the methods,if any,used to evaluate the effectiveness of this 6-13 Reference&Page Number
demand management measure(10631 (�(3))
� Provide estimates,if available,of existing conservation savings on water use 6-13 Reference&Page Number
and the effect of such savings on the supplier's ability to further reduce
demand(10631(�(4))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table E3-10631(g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631 (9)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impact&technological factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply projed that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Implementing
� If another Agency is implementing(10631(g)(4)) Agency Name
2/7/2007 Page 5
Implementation (Section 10637 (�8(h))
X❑ Describe demand management measure currently being implemented or scheduled for 6-13 Reference 8 Page Number
implementation(10631 (�(1)(2))
Year program started or Year program scheduled to start 2006
Other agencies offer rebates Cost-effectiveness calcs attached
X❑ Descxibes steps necessary to implement measure 6-14 Reference 8 Page Number
Table F1
Adual 2001 2002 2003 2004 2005
$per rebate 0 0 0 0 0
#of rebates paid 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY $0 $0 $0 $0 $0
Table F2
Planned 2006 2007 2008 2009 2010
$per rebate 250 250 300 300 350
#of rebates paid 35 35 40 40 45
projected expenditures-$ $8,750 $8,750 $12,000 $12,000 $15,750
projected water savings-AFY 0.5 0.5 0.6 0.6 0.7
X� Describe the methods,if any,used to evaluate the effectiveness of this 6-14 Reference 8 Page Number
demand management measure(10631 (�(3))
� Provide estimates,if available,of existing conservation savings on water use 6-14 Reference&Page Number
and the effect of such savings on the supplier's ability to further reduce
demand(10631(�(4))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table F3-10631 (g)(2)
(10631 (g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impact 8 technologipl factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
2/7/2007 Page 6
Implementation (Section 10631(�)
X❑ Describe demand management measure currently being implemented or scheduled for 6-14 Reference&Page Number
implementation(10631 (�(1)(2))
Year program started 1995 or Year program scheduled to start
X� Describes steps necessary to implement measure 6-17 Reference&Page Number
Table G1
Actual 2001 2002 2003 2004 2005
a.paid advertising 36 36 36 36 36
b.Public Service Announcement 10 10 10 10 10
c.Bill Inserts/Newsletters/Brochures 2 2 2 2 2
d.Bill showing water usage in comparison to 0 0 0 0 0
previous year's usage
e.Demonstration Gardens 1 1 1 1 1
f.Special Events,Media Events 2 2 2 2 2
g.Speaker's Bureau 0 0 0 0 0
h.Program to coordinate with other
govemment agenaes,industry and public 1 1 1 1 1
interest groups and media
actual expenditures-$ $20,000 $22,000 $24,000 $26,000 $28,000
Table G2
Planned 2006 2007 2008 2009 2010
a.paid advertising 36 38 40 40 45
b.Public Service Announcement 10 12 12 14 16
c.Bill Inserts/Newsletters/Brochures 2 2 2 2 2
d.Bill showing water usage in comparison to 0 0 0 0 0
previous year's usage
e.Demonstration Gardens 2 2 2 2 2
f.Special Events,Media Events 3 3 3 3 3
g.Speaker's Bureau 0 0 0 0 0
h.Program to coordinate with other
govemment agenaes,industry and public 1 1 1 1 1
interest groups and media
Projected expenditures-$ $30,000 $32,000 $34,000 $36,000 $38,000
X❑ Describe the methods,if any,used to evaluate the effectiveness of this 6-17 Reference 8 Page Number
demand management measure(10631 (�(3))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table G3-10631 (g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631(g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) TimeHorizon
� Evaluate customer impad&technological factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Descxibe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)8(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
2/7/2007 Page 7
Implementation (Section 10631(�8(h))
X❑ Descxibe demand management measure currently being implemented or scheduled for 6-18 Reference&Page Number
implementation(10631 (�(1)(2))
Year program started 1995 or Year program scheduled to start
X❑ Descxibes steps necessary to implement measure 6-19 Reference 8�Page Number
Table H1 No.of class presentations
Actual #of Gasses 2001 2002 2003 2004 2005
Grades K-3rd 0 0 0 0 0 0
Grades 4th-6th 0 0 0 0 0 0
Grades 7th-Sth 0 0 0 0 0 0
High School 0 0 0 0 0 0
actual expenditures-$ 0 $0 $0 $0 $0 $0
Table H2 No.of class presentations
Planned #of Gasses 2006 2007 2008 2009 2010
Grades K-3rd 10 2 2 2 2 2
Grades 4th-6th 12 2 2 2 3 3
Grades 7th-Sth 11 1 2 2 3 3
High School 10 2 2 2 2 2
projec[ed expenditures-$ 0 $10,000 $12,000 $12,000 $14,000 $16,000
� Describe the methods,if any,used to evaluate the effectiveness of this 6-19 Reference&Page Number
demand management measure(10631 (�(3))
�X Did your agency's material meet state education framework requirements? 6-19 Reference 8 Page Number
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table H3-10631 (g)(2)
(10631 (g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health fadors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impad&technologipl factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631(g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Impiementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
i 2/7/2007 Page 8
Implementation (Section 10631(�&(h))
X� Describe demand management measure currently being implemented or scheduled for 6-19 Reference&Page Number
implementation(10631 (�(1)(2))
X Year program started or Year program scheduled to start 2006
X❑ Describes steps necessary to implement measure 6-22 Reference 8 Page Number
#of Commercial accounts #of Industrial accounts #of Institutional accounts
Table 11
Adual 2001 2002 2003 2004 2005
#of surveys completed 0 0 0 0 0
Were incentives provided? 0 0 0 0 0
#of follow-up visits 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
Table 12
Planned 2006 2007 2008 2009 2010
#of surveys completed 0 15 20 25 27
Were incentives provided? yes yes yes yes yes
#of follow-up visits 0 3 4 5 6
projected expenditures-$ $10,000 $12,000 $14,000 $15,000 $16,000
projected water savings-AFY 0.0 1.7 2.2 2.8 3.0
X❑ Describe the methods,if any,used to evaluate the effectiveness of this 6-22 Reference&Page Number
demand management measure(10631(�(3))
X❑ Provide estimates,if available,of existing conservation savings on water use 6-22 Reference 8 Page Number
and the effect of such savings on the supplier's ability to further reduce
demand(10631(�(4))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table 13-10631 (g)(2)
(10631 (g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Tota�Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impact&technological factors Cost of Water
(10631 (g)(1)) WaterSavings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply projed that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
� 2/7/2007 Page 9
(this data is part of the Council Annuai RepoR but is not specifically requested in the UWMP Act) change
Implementation (Section 10631(�8(h))
X❑ Describe demand management measure currently being implemented or scheduled for 6-22 Reference&Page Number
implementation(10631(�(1)(2))
Year program started or Year program scheduled to start 2006
X� Describes steps necessary to implement measure 6-22 Reference 8 Page Number
Table 14
Actual 2001 2002 2003 2004 2005
#of commercial replacements 0 0 0 0 0
#of industrial replacements 0 0 0 0 0
#of institutional replacements 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
Table 15
Planned 2006 2007 2008 2009 2010
#of commeraal replacements 20 21 22 23 24
#of industrial replacements 0 0 0 0 0
#of institutional replacements 0 0 0 0 0
projeded expenditures-$ $5,000 $6,000 $7,000 $8,000 $9,000
projected water savings-AFY 0.8 0.9 0.9 1.0 1.0
X❑ Describe the methods,if any,used to evaluate the effectiveness of this 6-22 Reference&Page Number
demand management measure(10631 (�(3))
X❑ Provide estimates,if available,of existing conservation savings on water use 6-22 Reference&Page Number
and the effect of such savings on the supplier's ability to further reduce
demand(10631(�(4))
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table I6-10631(g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631(g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631(g)(1)) Time Horizon
� Evaluate customer impact&technological factors Cost of Water
(10631(g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply projed that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
2/7/2007 Page 10
X Not a wholesale agency
Implementation (Section 10631(�8(h))
� Describe demand management measure currently being implemented or sched�led for Reference&Page Number
implementation(10631(�(1)(2))
Year program started or Year program scheduled to start
#of suppliers you serve
� Describes steps necessary to implement measure Reference&Page Number
Table J1 Number of agencies assisted
program activities 2001 2002 2003 2004 2005
Water Surveys 0 0 0 0 0
Residential Retrofit 0 0 0 0 0
System Audits 0 0 0 0 0
Metering-Commodiry Rates 0 0 0 0 0
Landscape Programs 0 0 0 0 0
Washing Machines 0 0 0 0 0
Public Information 0 0 0 0 0
School Education 0 0 0 0 0
CII WC 0 0 0 0 0
CII ULF 0 0 0 0 0
Water Waste 0 0 0 0 0
Priang 0 0 0 0 0
WC Coordinator 0 0 0 0 0
Water Waste 0 0 0 0 0
UFLT Replacement 0 0 0 0 0
actual expenditures-$ 0 0 0 0 $0
Table J2 Number of agencies to be assisted
program adivities 2006 2007 2008 2009 2010
Water Surveys 0 0 0 0 0
Residential Retrofrt 0 0 0 0 0
System Audits 0 0 0 0 0
Metering-Commodity Rates 0 0 0 0 0
Landscape Programs 0 0 0 0 0
Washing Machines 0 0 0 0 0
Public Information 0 0 0 0 0
School Education 0 0 0 0 0
CII WC 0 0 0 0 0
CII ULF 0 0 0 0 0
Water Waste 0 0 0 0 0
Pricing 0 0 0 0 0
WC Coordinator 0 0 0 0 0
Water Waste 0 0 0 0 0
UFLT Replacement 0 0 0 0 0
projected expenditures-$ 0 0 0 0 0
� Describe the methods,if any,used to evaluate the effectiveness of this Reference&Page Number
demand management measure(10631 (�(3))
❑ Provide estimates,if available,of existing conservation savings on water use Reference&Page Number
and the effed of such savings on the supplier's ability to further reduce
demand(10631(�(4))
� 2/7/2007 Page 11
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table J3-10631 (g)(2)
(10631 (g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Totai Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impact&technologiql factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply projed that would provide water at a higher unit cost(10631 (g)(3)&(h))
If AnotherAgency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
� 2/7/2007 Page 12
�
Implementation (Section 70631(�8(h))
X❑ Describe demand management measure currently being implemented or scheduled for 6-23 Reference 8 Page Number
implementation(10631 (�(1)(2))
Year program started 1982 or Year program scheduled to start
X Agency provides sewer service
X Describes steps necessary to implement measure 6-25 Reference&Page Number
Table K1
RETAILERS
Residential
Water Rate Structure flat Sewer Rate Structure $25.99/qtr
Year rate effective 2006 Year rate effective 2006
Commercial
Water Rate Structure $2/HCF Sewer Rate Structure $24.53-27.97/qtr
Year rate effective 2006 Year rate effective 2006
Industrial
Water Rate Structure $2/HCF Sewer Rate Structure $27.97/qtr
Year rate effective 2006 Year rate effective 2006
I nstitutiona I/Govern m ent
Water Rate Structure $2/HCF Sewer Rate Structure $27.97/qtr
Year rate effective 2006 Year rate effective 2006
Irrigation
Water Rate Structure $2/HCF
Year rate effective 2006
Other
Water Rate Structure $2JHCF Sewer Rate Structure $27.97/qtr
Year rate effective 2006 Year rate effective 2006
Table K2
WHOLESALERS
Water Rate Structure NA
Year rate effective NA
Provided an evaluation for this DMM if it is not impiemented (Section 10631(g))
� Evaluate legal authority Table K3-10631 (g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Totai Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impact&technologiql factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other releva�t agencies to ensure implementation of the measure and to share the cost of
implementation(10631(g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)8(h))
If Another Agency Implementing
� If another Agency is implementing(10631(g)(4)) Agency Name
� 2/7/2007 Page 13
Implementation (Section 10631(�8(h))
X❑ Desaibe demand management measure currently being implemented or scheduled for 6-25 Reference&Page Number
implementation(10631 (�(1)(2))
Year program started or Year program scheduled to start 2006
X� Desaibes steps necessary to implement measure 6-26 Reference 8 Page Number
Table L1
Actual 2001 2002 2003 2004 2005
#of full-time positions 0 0 0 0 0
#of full/part-time staff 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
Table L2
Planned 2006 2007 2008 2009 2010
#of full-time positions 3 4 4 4 4
#of full/part-time staff 0 0 0 0 0
projeded expenditures-$ $30,000 $50,000 $50,000 $50,000 $50,000
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table L3-10631(g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631 (g)(1)) Time Horizon
� Evaluate customer impad 8 technological factors Cost of Water
(10631(g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation of the measure and to share the cost of
implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
�
I 2/7/2007 Page 14
Implementation (Section 10631(fl 8(h))
X❑ Desaibe demand management measure currently being implemented or scheduled for 6-26 Reference&Page Number
implementation(10631 (�(1)(2))
Year program started or Year program scheduled to start 2006
X❑ Describes steps necessary to implement measure 6-28 Reference&Page Number
Table M1
Actual 2001 2002 2003 2004 2005
waste ordinance in effed 0 0 0 0 0
#of on-site visits 0 0 0 0 0
water softener ordinance 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
Table M2
Planned 2006 2007 2008 2009 2010
waste ordinance in effect yes yes yes yes yes
#of on-site visits 100 105 110 115 120
water softener ordinance no no no no no
projected expenditures-$ $5,000 $5,500 $6,000 $6,500 $7,000
X❑ Describe the methods,if any,used to evaluate the effectiveness of this demand management measure
(10631(�(3)) 6-28 Reference&Page Number
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table M3-10631 (g)(2)
(10631 (g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs
(10631 (g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631(g)(1)) Time Horizon
� Evaluate customer impad 8 technologiql factors Cost of Water
(10631 (g)(1)) WaterSavings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation
of the measure and to share the cost of implementation(10631 (g)(4))
� Desaibe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)8(h))
If Another Agency Implementing
� If another Agency is implementing(10631 (g)(4)) Agency Name
2/7/2007 Page 15
Implementation (Section 10631(fl 8(h))
X❑ Describe demand management measure currently being implemented or scheduled for 6-28 Reference&Page Number
implementation(10631(�(1)(2))
Year program started or Year program scheduled to start 2006
#of SF pre-1992 accounts 9339
X❑ Describes steps necessary to implement measure 6-30 Reference&Page Number
Table N1 Single-Family
Actual 2001 2002 2003 2004 2005
#of ULF rebates 0 0 0 0 0
#of ULF direct installs 0 0 0 0 0
#of ULF CBO installs 0 0 0 0 0
actual expenditures-$ $0 $0 $0 $0 $0
actual water savings-AFY 0 0 0 0 0
Table N2 Single-Family
Planned 2006 2007 2008 2009 2010
#of ULF rebates 25 30 35 35 35
#of ULF direct installs 0 0 0 0 0
#of ULF CBO installs 0 0 0 0 0
projected expenditures-$ $5,000 $5,500 $6,000 $6,500 $7,000
projected water savings-AFY 1.1 1.3 1.6 1 6 1.6
#of MF pre-1992 units 1014
Table N3 Multi-Family
Actual 2001 2002 2003 2004 2005
#of ULF rebates 0 0 0 0 0
#of ULF direct installs 0 0 0 0 0
#of ULF CBO installs 0 0 0 0 0
actual expenditures-$ $0 $0 SO $0 $0
actual water savings-AFY 0 0 0 0 0
Table N4 Multi-Family
Planned 2006 2007 2008 2009 2010
#of ULF rebates 0 0 0 0 0
#of ULF direct installs 0 0 0 0 0
#of ULF CBO installs 0 0 0 0 0
projected expenditures-$ $0 $0 $0 $0 $0
projected water savings-AFY 0 0 0 0 0
❑X is a toilet retrofit on resale ordinance in effect for your service area? No
X❑ Provide estimates,if available,of existing conservation savings on water use and the effect of such savings
on the supplier's ability to further reduce demand 6-30 Reference&Page Number
(10631 (�(4))
2/7/2007 Page 16
Provided an evaluation for this DMM if it is not implemented (Section 10631(g))
� Evaluate legal authority Table N5-10631 (g)(2)
(10631(g)(4)) Cost Effectiveness Summary
� Evaluate economic and non-economic factors Total Costs a
(10631(g)(1)) Total Benefits
� Evaluate environmental,social,health factors Discount Rate
(10631(g)(1)) Time Horizon
� Evaluate customer impact&technological factors Cost of Water
(10631 (g)(1)) Water Savings(AFY)
� Describe efforts to work with other relevant agencies to ensure implementation
of the measure and to share the cost of implementation(10631 (g)(4))
� Describe funding available to implement any planned water supply project that would provide water at a higher unit cost(10631 (g)(3)&(h))
If Another Agency Implementing
� If another Agency is implementing(10631(g)(4)) Agency Name
(Water Code§10620(d)(1)(2)-10645,the 2005 Urban Water Management Plan Review for Completeness Form is found on Sheet 1
2/7/2007 Page 17
I
Appendix M
Groundwater Management Plan
i
SOUTH TAHOE PUBLIC UTILITY DISTRICT
+��w�r'�Ho
� � �
_.e......
. ---.;�,=-
sa�lr • 195EII•`Na��t,��
���y,,,� 1S�;�s
��c �C�Y Q
GROUNDWATER MANAGEMENT PLAN
(California Water Code, §§ 10750 et seq.)
ADDED AS
DIVISION 7, SECTIONS 7.1 THROUGH 7.13
TO THE ADMINISTRATIVE CODE PURSUANT
TO ORDINANCE NO. 477-00
I
li
DIVISION 7
OF THE
ADMINISTRATIVE CODE
Section 7.1 Plan Authorization.
7.1.1 Purpose and policy. The District has developed this Plan to maintain
Groundwater supplies and protect Groundwater yuality. The purpose of this Plan is to regulate,
manage, conserve and protect the Groundwater resources available to the District so that the
Groundwater will remain a viable potable water resource and be available to be put to the most
efficient and beneficial use by the District and its customers.
7.1.2 Authorization. The District is an authorized groundwater management agency
within the meaning of California Water Code Section 10753(a)and assumes responsibility for
managing the quantity and quality of the Groundwater resources within the Plan Area pursuant to
this Plan.
7.1.3 Findings. Because the District obtains its water supply from the Basin
Groundwater, and there is currently no regu(atory program in place which is designed to protect
and preserve the long-term viability of the District's Groundwater resources, the District finds it
advisable and in the best interests of the District and all water users to develop and implement
comprehensive groundwater management of the Groundwater resources within the Plan Area.
7.1.4 Administration. The District shall administer this Plan within the Plan Area.
The District, acting by and through its Board of Directors, sha(1 have jurisdiction over
Groundwater within the Plan Area and shall have the powers provided by this Division or any
other provision of law. The District shall adopt rules, regulations and procedures to implement
and enforce this Plan pursuant to California Water Code Section 10753.8.
7.1.5 Coordination with Other Authorities. The District will make every
reasonable effort to coordinate this Plan with other governmental agencies and authorities,
including the E1 Dorado County Environmental Management Department,the Tahoe Regional
Planning Agency and the California Regional Water Quality Control Board, Lahontan Region, in
order to achieve comprehensive Groundwater management within the Plan Area without
unnecessary duplication of effort and utilizing consistent standards,to the extent reasonably
possible. The District may, in its discretion, request that other governmental agencies take
actions parallel to the actions taken by the District pursuant to this Plan, although such
governmental agencies exercise their independent discretion with respect to taking action within
their jurisdiction.
7.1.6 Potential Impact on Business Activities. The District has considered the
impacts of man-made contamination on the District and its customers and the potential impact of
this Plan and its implementing rules, regulations and procedures on business activities. The
District has, to the extent practicable and consistent with the protection of Groundwater
resources, minimized any adverse impacts on those business activities. This Plan will provide
benefits to municipal, industrial, agricultural and commercial uses which outweigh any economic
impacts that may result to those that are subject to this Plan.
�
�
���
7.1.7 Water Quality Authority. Pursuant to California Water Code section 10754,
the District may exercise the authority of a water replenishment district pursuant to Part 4
(commencing with section 60220) of Division 18 for the protection and preservation of the
District's Groundwater resources.
Section 7.2 Detinitions.
7.2.1 Action Level. Action Level shall mean the concentration of Contamination at
which response action will be taken. The District shall set Action Levels as follows: 1) for an
early detection immediate response Monitoring Well,the Action Level shall be the lower of
either five(5)times the California Drinking Water Primary Maximum Contaminant Level,
Secondary Maximum Contaminant Level or California Department of Health Services' Action
Level; and 2) for a Point of Compliance Monitoring Well,the Action Level shall be the lower of
either the California Drinking Water Primary, Secondary Maximum Contaminant Level or
California Department of Health Services' Action Level.
7.2.2 Aquifer(s). Aquifer(s) shall mean a geologic formation or group of formations
that transmits or stores water in sufficient quantities to supply the Extraction of water by Wells
or springs.
7.2.3 Background Concentrations. Background Concentrations shall mean
concentrations of naturally occurring Contaminants in the Groundwater, surface water, soil or
sediment in an area in which the concentration is not anomalous.
7.2.4 Basin. Basin shall mean the South Lake Tahoe Groundwater Sub-basin as
shown in Figure 1 of this Division. The Basin is defined by all water-bearing sediments south of
the shoreline of Lake Tahoe and within the watersheds of all drainages entering Lake Tahoe
between Tallac Creek and Burke Creek. The South Lake Tahoe Groundwater Sub-basin
encompasses the Tahoe Valley-South Groundwater Basin (Basin No. 6-5.01) as originally
established in California Division of Water Resources(DWR) Bulletins 118 and 118-80.
7.2.5 Contaminants. Contaminants shall mean naturally occurring or man-made
substances in surface water, Groundwater, soil, sediment or upon the land in quantities that may
result in an impairment of Groundwater quality within the Plan Area.
7.2.6 Contamination. Contamination shall mean the presence of naturally occurring
or man-made substances in surface water, Groundwater, soil, sediment or upon the land in
quantities that may result in an impairment of Groundwater quality within the Plan Area.
7.2.7 Continuous Monitoring. Continuous Monitoring shall mean a system using
equipment which routinely performs the required monitoring on a periodic or cyclic basis
throughout each day.
7.2.8 Destroyed Well. Destroyed Well shall mean a Well that is no longer useful and
that has been completely filled in accordance with the procedures described in Section 23 of the
California Well Standards, DWR Bulletins 74-81 and 74-90 (Supplement to Bulletin 74-81).
7.2.9 District. District shall mean the South Tahoe Public Utility District, acting by
and through the District's Board of Directors or their duly authorized representatives.
!
�
�
7.2.10 Domestic Use. Domestic Use shall have the same meaning ascribed to it by
California Code of Regulations,Title 23, section 660.
7.2.11 Extraction. Extraction shall mean the act of obtaining Groundwater by
pumping or other controlled means.
7.2.12 Extraction Facility. Extraction Facility shall mean any device or method for
the Extraction of Groundwater including a Well.
7.2.13 Groundwater. Groundwater shall mean the water beneath the surface of the
earth within the zone below the water table in which the soil is completely saturated with water,
whether or not flowing through known and defined channels.
7.2.14 Groundwater Basin. Groundwater Basin shall mean an Aquifer or system of
Aquifers,that has reasonably well defined boundaries and more or less definite areas of
Recharge and discharge.
7.2.15 Monitoring Well(s). Monitoring Well(s) shall mean a Well constructed with a
surface seal and a sand filter pack in accordance with accepted design practices in order to
provide for the collection of representative Groundwater samples for laboratory analysis. Such
Wells may also be used to detect the presence of Contamination, to investigate the extent and
monitor the movement of Groundwater Contamination, to monitor water quality or to collect
water-(evel elevation data to aid in determining the direction of Groundwater flow.
7.2.16 Operator. Operator shall mean a Person who operates a Storage Facility which
handles andlor stores Petroleum Products Chemicals of Concern. If the District is unable to
determine who operates a particular Storage Facility,then Operator shall mean the Person to
whom the Storage Facility is assessed by the County Assessor or, if not separately assessed, the
Person who owns the Real Property upon which the Storage Facility is located.
7.2.17 Overdraft. Overdraft shall mean the condition of the Basin where the average
annual amount of water extracted exceeds the annual supply of water to the Basin.
7.2.18 Person. Person shall mean any individual, firm, partnership, limited liability
company, partnership, corporation, association or governmental agency. Governmental agency,
as used in this Division, shall not include any local agency exempt from the application of this
Division pursuant to state law.
7.2.19 Petroleum. Petroleum shall mean petroleum including crude oil, or any
fraction thereof, which is liquid at standard conditions of temperature and pressure, which are 60
degrees Fahrenheit and 14.7 Ibs. per square inch absolute.
7.2.20 Petroleum Products Chemicals of Concern. Petroleum Products Chemicals
of Concern shall mean the constituents of Petroleum or Petroleum products including, but not
limited to, fuel ether and alcohol oxygenates found in Petroleum products or fuel additives,
which are the result of an unauthorized release of a Petroleum substance resulting from handling,
storing or dispensing of Petroleum products.
!
7.2.21 Physical Barrier Effectiveness. Physical Barrier Effectiveness shall mean an
estimate of the ability of the natural geological materials, hydraulic conditions and construction
features of a Well or intake point to prevent the movement of contaminants to a drinking water
source, determined in accordance with the DHS DWSAP program.
7.2.22 Plan. Plan shall mean this Groundwater Management Plan and its amendments,
modifications, and/or supplements.
7.2.23 Plan Area. Plan Area shall mean the area designated in Section 7.3 of this
Plan.
7.2.24 Plume(s). Plume(s) shall mean a concentration of Contaminants in soil or
Groundwater extending from a point source(s) of release.
7.2.25 Radius of Influence. Radius of Influence sha(1 mean the horizontal distance
from the center of a Well to the limit of the cone of depression.
7.2.26 Real Property. Real Property shall mean the land and everything permanently
fixed as a part of it.
7.2.27 Real Property Owner. Real Property Owner shall mean the Person that is
vested with ownership, dominion or legal or rightful title to the Real Property.
7.2.28 Recharge. Recharge shall mean the natural or artificial Replenishment of
Groundwater storage by percolation or injection of one or more sources of water.
7.2.29 Remediation. Remediation shall mean the clean-up or removal of
Contamination from the soil or Groundwater, and any action taken to prevent or minimize the
release and/or migration of Contamination into or within the Groundwater Basin.
7.2.30 Repair. Repair shall mean to restore a Storage Facility system component(s)
that has caused a release of a hazardous substance from the Storage Facility.
7.2.31 Replenishment. Replenishment shall mean the spreading or injection of water
for the purpose of enhancing Recharge to the Basin, or otherwise adding to the storage of
Groundwater within the Basin.
7.2.32 Responsible Party. Responsible Party shall mean the Real Property Owner,the
Operator and/or the discharger of Petroleum Products Chemicals of Concern.
7.2.33 Site or Petroleum Contamination Site. Site or Petroleum Contamination Site
shall mean any contiguous land, surface water and Groundwater areas upon or into which there
has occurred a discharge of Petroleum or Petroleum Products Chemicals of Concern.
7.2.34 Stakeholder Advisory Group. Stakeholder Advisory Group shall mean the ad
hoc groundwater management advisory committee appointed pursuant to Section 7.4 of this Plan.
7.2.35 Storage Facility. Storage Facility shall mean any device or method for the
handling, mixing, and/or storing of Petroleum or Petroleum Products Chemicals of Concern.
k
�
�
�
,
�
7.2.36 Well(s)or Water Well(s). Well(s) or Water Well(s) shall mean any artificial
excavation constructed by any method for the purpose of extracting Groundwater. Well or
Water Well shall not include:
(1) Oil and gas wells, or geothermal wells constructed under the jurisdiction
of the California State Department of Conservation, except those welis converted to use as Water
Wells;or
(2) Wells used for the purpose of•
(a) Dewatering excavation during construction, or
(b) Stabilizing hillsides or earth embankments.
7.2.37 Well Interference. Well Interference shall mean a substantial static water level
decline in a short period of time in a localized area which is caused by pumping of Groundwater
by Extraction Facilities.
7.2.38 Underground Storage Tank. Underground Storage Tank shali mean any one
or combination of tanks, including pipes connected thereto, which is used for the storage of
hazardous substances and which is substantially or totally beneath the surface of the ground.
Underground Storage Tank does not include any of the following:
(1) A tank with a capacity of 1,100 gallons or less which is located on a farm
and which stores motor vehicle fuel used primarily for agricultural purposes and not for resale.
(2) A tank which is located on a farm or at the residence of a person, which
has a capacity of 1,100 gallons or less, and which stores home heating oil for consumptive uses
on the premises where stored.
(3) Structures, such as sumps, separators, storm drains, catch basins, oil field
gathering lines, refinery pipelines, lagoons, evaporation ponds, well cellars, separation sumps,
lined and unlined pits, sumps and lagoons. Sumps which are a part of a monitoring system
required under Section 25291 or 25292 and sumps or other structures defined as underground
storage tanks under the federal act are not exempted by this subparagraph.
(4) A tank holding hydraulic fluid for a closed loop mechanical system that
uses compressed air or hydraulic fluid to operate lifts, elevators, and other similar devices.
7.2.39 Underground Storage Tank Basin. Underground Storage Tank Basin shall
mean the location of one or more Underground Storage Tanks in a single excavation and within
close proximity to one another if more than one Underground Storage Tank.
7.2.40 Zone of Contribution. Zone of Contribution shall mean those areas at the land
surface adjacent to and surrounding a well in which the primary criterion is the time of travel
(time for groundwater to travel from a point in the aquifer to a Well) in accordance with the
, California Department of Health Services(DHS) Drinking Water Source Assessment and
' Protection Program(DWSAP).
�
I
Section 7.3 Plan Area.
7.3.1 Plan Area. For the purposes of carrying out the goals and objectives
established in this Plan, the boundaries of the Plan Area will include portions of El Dorado
County,the City of South Lake Tahoe,the Community of Meyers and Christmas Valley situated
within the South Lake Tahoe Groundwater Sub-basin to the extent that they lie within the El
Dorado County portion of the District's service area as shown in Figure 1 of this Division.
7.3.2 Service Area. For the purposes of carrying out the goals and objectives
established in this Plan,the Service Area shall include the E( Dorado County portion of the
District's service area as established by the El Dorado County Local Agency Formation
Commission. The Service Area encompasses approximately 27,000 acres(42 square miles),
the boundaries of which are shown in Figure 2 of this Division.
7.3.3 Groundwater Basin Hydrogeolog,y. The Basin is a sedimentary Groundwater
Basin within the south portion of the Lake Tahoe Hydrographic Area. The Basin occupies an
area of approximately 29,000 acres within a structural valley or graben,that is between the main
range of the Sierra Nevada on the west and the Carson Range on the east. Land surface
etevations across the Basin range from approximately 6,230 feet above sea level (fasl), along the
south shore of Lake Tahoe to more than 7,000 fasl, where glacial moraine deposits contact
bedrock on the mid-slopes of the Sierra Nevada, along the west margins of the Basin. Principle
surface water drainages within the Basin include the Upper Truckee River and Trout Creek.
Structurally,the Basin is a west-tilted asymmetric half-graben. The West Tahoe
Fault Zone defines the west side of the graben and is believed to be an east-dipping normal fault,
with east-side-down normal displacements. This fault zone trends northwest-southeast across the
Basin, from Eagle Point toward the Celio Ranch. A second zone of faulting occurs near the east
side of the graben.This east side fault zone trends in a northeast-southwest direction along the
mountain front of the Carson Range, from Stateline toward Meyers. This east side fault zone is
also believed to be an east-dipping normal fault, with northwest-side-down normal
displacements.
For the purposes of this Plan,the geologic materials contained within the Basin
are broadly subdivided into bedrock and basin-fill deposits. Bedrock consists of inetamorphic,
granitic and volcanic rocks. These rocks occur along the upper portions of the steep mountain
slopes and peaks that surround the margins of the Basin and underlies the structural valley into
which the basin-fill deposits lie. A smaller region of bedrock, composed of ineta-sedimentary
and granitic rocks, is exposed within the north-central portion of the Basin at Twin Peaks, the
adjoining area of low lying hills northwest of Twin Peaks and at Tahoe Mountain. Bedrock is
not a significant source of Groundwater within the Basin.
Basin-fill deposits, in general, consist of unconsolidated glacial, lake and stream
sediments. These sedimentary deposits fill the lower reaches of the canyons that drain toward
Lake Tahoe and underlie the relatively flat lying valley floors. Across the Basin,the thickness of
these deposits are variable. In genera(,the basin-fill deposits are relatively thin toward the
margins of the Basin and where they cover shallow bedrock areas exposed within the Basin. The
basin-fill deposits typically thicken away from these bedrock areas to fill the deepest portions of
the Basin, referred to as depocenters. Gravity survey and Well drilling information suggests that
I
I
�
I
at least two depocenters occur within the Basin. The largest of these depocenters underlies the
City of South Lake Tahoe. The other depocenter is located north of Fallen Leaf Lake, underlying
the present drainages of Baldwin and Taylor Creeks. Basin-fi(1 deposits attain their maximum
extent within these depocenters and may be on the order of 600 feet to more than 1,000 feet
thick.
The principal source of Groundwater in the Basin are the basin-fill deposits.
Glacial deposits form the majority of the Aquifers in the Basin. Valley glaciers advanced north
toward Lake Tahoe through the Upper Truckee River Valley during at least three episodes of
glaciation between 3 million and 12,000 years ago. As these glaciers advanced and receded they
formed lateral moraines along the edges of the glaciers path and tertninal moraines in front of the
ends of the glaciers advance. These moraine deposits are typically jumbled deposits of clay to
boulder size material, with moderate permeability. Sediment-laden melt-waters from the
receding glaciers flowed in streams, in front of the terminal moraines, north toward Lake Tahoe.
These streams dropped their sediment loads along their stream channels and in broad coalescing
flood fans, referred to as outwash plains. These glacial outwash deposits are composed of
layered beds of well sorted gravel, sand and silt size material, with moderate to high
permeability. Where these glacial streams deposited sediment directly into Lake Tahoe, thick
deltas were formed of interlayered sand and fine-grained silt and clay. These delta sequences
grade laterally with: lakeshore deposits, consisting of moderately well sorted sand and gravel
deposits with relatively high permeability; marsh deposits, consisting of fine-grained sand, silt
and clay; and lake deposits, consisting of silt and clay. Both the marsh and lake deposits have
relatively low permeability. The glacial outwash and delta deposits form excellent Groundwater
reservoirs. The best of these reservoirs have been found in the north half of the Basin, beneath
the present day Truckee Marsh.
Precipitation, predominantly in the form of snow, falling in the Basin
watershed, ranges from nearly 25 inches to more than 60 inches per year, depending on (ocation
and altitude. Snowmelt is the primary source of Recharge to the Basin and generates, on average,
more than 80 percent of the annual runoff within the watershed. Other sources of Groundwater
Recharge include stream-flow seepage and Groundwater inflow from the surrounding bedrock.
Precipitation, streams draining exposed bedrock areas and stream seepage
Recharges the Basin. Infiltrating waters continue their movement through the subsurface as
Groundwater flow. In general,the movement of Groundwater through the Basin is south to
north,toward Lake Tahoe, which is the dominant hydrologic feature in the Basin. Areas of
Groundwater discharge within the Basin occur along the upper reaches of the Upper Truckee
River and Trout Creek, in wetland areas situated near the south shore of Lake Tahoe and directly
into Lake Tahoe, where basin-fill deposits intersect the shoreline. Additional sources of
Groundwater discharge include Groundwater pumping, evapotranspiration and seepage to
springs.
7.3.4 Business/Economic Dependence on Groundwater Basin. The District and its
customers, including the business community and economic vitality of South Lake Tahoe, is
almost entirely dependent on Groundwater. Only a small section of the community, Lakeside
Park, is supplied water from a surface water source. Visitors to the south shore of Lake Tahoe
I� often compliment on the drinking water of the south shore of Lake Tahoe for its quality and
� taste. Drinking water, coupled with the pristine quality and image of Lake Tahoe, is a major
�
asset of the community.
The District has been significantly and adversely affected by the release of man-
made contaminants into the Groundwater. The District has already spent several million dollars
as a result of the loss of approximately one-third (1/3)of the District's Wells being contaminated
by man-made contaminants. The District will be required to spend tens of millions of dollars in
the future to fully address the impacts of man-made contaminants on the Groundwater in order to
provide its customers with continued high quality drinking water of sufficient quantity to meet
their needs.
The production and distribution of uncontaminated groundwater is much more
cost effective and efficient than providing Groundwater that has been contaminated with man-
made contaminants. The treatment of Groundwater can increase water suppty costs significantly,
which is currently estimated to be ten to twenty times the cost of supplying uncontaminated
Groundwater. Groundwater that must be treated for man-made and/or natural contaminants
typically costs several million dollars in capital improvement costs and millions of dollars in
annual operating and maintenance. The treatment costs will vary depending upon the volume of
water being treated and the logistics of the various treatment systems in the District's water
supply system.
The cost of imp(ementing this Plan is estimated to be significantly less than the
cost of treating contaminated Groundwater. When the impacts to the District and its customers
are compared to the cost of this Plan,the benefits of this Plan clearly outweigh the cost of
implementation. Further,this Plan will assist the business community by identifying and
cleaning-up future releases immediately and, as a result, substantially reduce costs for the
assessment and long-term cleanup of contaminant plumes that might otherwise go undetected.
As a result, the overall cost of operations to the District(minimizing treatment of contaminated
Groundwater) and to the business community (minimizing the impacts of man-made
contaminant releases by early detection and clean-up)will be reduced. The cost of this Plan
when compared to the costs associated with continued release of man-made contaminants into
the Groundwater, both to the business community and the District, clearly supports this Plan.
Section 7.4 Stakeholder Advisorv Group.
7.4.1 Establishment of Committee. The District shall appoint a Stakeholder
Advisory Group consisting of individual Persons who reside within the boundaries of the District
or who represent a governmental agency, and who have demonstrated their commitment to
protecting the Groundwater resources of the District. The purpose of the group is to enable
citizens in the District and representatives of governmental agencies to provide meaningful input
in the development and implementation of this Plan. The group will operate on principles of
collaboration and consensus. Representation shall be balanced among the general interest
categories as follows: California Regional Water Quality Control Board, Lahontan Region, El
Dorado County,Tahoe Regional Planning Agency, City of South Lake Tahoe, a Real Property
Owner, an Operator, a water purveyor, a business community rate payer, a non-business
community rate payer and such other persons as the District deems desirable or advisable.
7.4.2 Meetings and Rules. The Stakeholder Advisory Group shall meet at least once
each quarter for one(1) year after the effective date of the original adoption of this Plan and at
least semi-annually afterwards. The Stakeholder Advisory Group may meet more frequently as
� decided by a majority of the group. The group shall comply with the Ralph M. Brown Act
(Chapter 9(commencing with section 54950)of Part 1 of Division 2 of Title 5 of the
Government Code.) The Stakeholder Advisory Group shall adopt procedural rules for the
conduct of its business. A majority of the total group members shall constitute a quorum.
7.4.3 Chairperson. The members of the group shall elect a chairperson on an annual
basis. The chairperson shall preside at all meetings of the group and perform duties consistent
with the procedures adopted by the group.
7.4.4 Powers. The Stakeholder Advisory Group may advise the District on all
matters included within the purposes and provisions of this Division and may comment on rules,
regulations and procedures which may be considered for adoption by the Board pursuant to this
Division.
Section 7.5 Public Education and Communitv Relations.
7.5.1 Findings. It is essential to involve the public and the commercial and industrial
communities in the development and implementation ofthis Plan. Public education, public
participation and community relations are an integral element to Groundwater management in
the District.
7.5.2 Services. The District shall continue to provide Groundwater protection
educational services to the public through public presentations, public informational items and
references to Groundwater protection data available through other governmental agencies.
Section 7.6 Condition of Groundwater Basin.
7.6.1 Findings Regarding General Water Quality.Groundwater within the Basin
has excellent chemical quality and is suitable for pomestic Use and public water supply. The
dissolved solids content within the Groundwater is very low, with the concentrations of inorganic
constituents correspondingly low. Based on total alkalinity, the Groundwater is moderately hard.
For most constituents, Groundwater within the Basin meets all drinking water quality standards,
including California Drinking Water Primary and Secondary Maximum Contaminant Levels
(MCLs). However,there have been few instances where, either because of the presence of
natural or man-made Contaminants, MCLs have been exceeded.
7.6.2 Findings Regarding Natural Contaminants.Natural Contaminants are
defined as undesirable naturally occurring substances found in water or soil which may result in
a degradation of Groundwater quality for those substances.Natural Contaminants which occur
in the Basin include radiological substances(uranium, gross alpha activity and radon)and
potentially arsenic, soluble iron and manganese.
Radiological substances include total soluble uranium, gross alpha activity and
radon. Incidences of radiological substances exceeding the uranium MCL of 20 picocuries per
liter(pCi/L)and/or the gross alpha MCL of 15 pCi/I, have been found in the District's South Y
Well and College Well. These Wells are generally situated in areas within the Basin believed to
be proximal to shallow bedrock. The source of these radiological substances is believed to be
due to the dissolution of uranium-bearing minerals present in the bedrock. On average,
concentrations of radiological substances for all water samples collected from each respective
`
District Well, with the exception of the South Y and College Wells, have been below MCLs.
�
�
Concentrations of radiological substances in water collected from other District Wells are
typically 15 pCi/L or less for total uranium and 10 pCi/L or less for gross alpha.
Radon is found in Groundwater occurring throughout the Basin. The source of
radon is from the radioactive decay of radium isotopes, which are themselves, disintegration
products of uranium. Radon levels in water samples collected from District Wells have ranged
from approximately 100 to more than 4,000 pCi/L. An MCL of 300 pCi/L has been proposed for
this compound with an alternative MCL of 4,000 pCi/L. The majority of District Wells have
average radon levels which are greater than the proposed MCL but less than the proposed
alternative MCL.
Arsenic levels in water collected from District Wells is below the present MCL
of 50 milligrams per liter(mg/I.). However, this MCL may be lowered in the future to 10 mg/L
or less. Incidences of arsenic greater than 10 mg/I, have been found in the Airport Well,
Bakersfield Well, Mountain View Well, South Upper Truckee Well#2, South Y Well, Sunset
Well, and Tata Well #1. District Wells with water having average arsenic concentrations at or
exceeding 10 mg/L include the Bakersfield Well and Tata#1 Well. Sources of arsenic in the
Basin are believed to be derived from the weathering of exposed bedrock within and surrounding
the Basin and/or the dissolution of arsenic-bearing materials within the basin-fill deposits.
Soluble iron concentrations in water from the Al Tahoe Well #1, Blackrock
Well#1, Blackrock Well #2, Chris Avenue Well, College Well, Fountain Avenue Well ,
Glenwood Well#2, Helen Well #l, Helen We(1#2, Mountain View Well, South Upper Truckee
Well #1, South Upper Truckee Well#2, Tata Well#1, Tata Well #2, Tata Well #3 and Tata Well
#4 all have had maximum occurrences exceeding the recommended secondary MCL of 0.300
mg/L. Sources of iron in these Wells may be attributed to natural processes (chemical reactions
which occur when waters at varying oxidation states mix in the subsurface)and/or the
development of biofilms or corrosion of inetal casings within the Wells themselves. On average,
soluble iron concentrations for all water samples co(lected from each respective District Well
have been below MCLs, with the exception of the Helen Well #1. Soluble iron concentrations
in water collected from other District Wells are typically 0.200 mg/L or less.
Soluble manganese concentrations in water from the Glenwood Well #2, Martin
Avenue Well and the Tata#4 Well all have had maximum occurrences exceeding the
recommended secondary MCL of 0.05 mg/L. These Wells are generally situated across the
north-central portions of the Basin. Sources of manganese in these Welis are believed to be from
similar sources as described for iron. On average, soluble manganese concentrations for all
water samples collected from each respective District Well, with the exception of the Tata#4
Well, have been below MCLs, with the exception of the Martin Avenue Well and Tata#4 Well.
Soluble manganese concentrations in water collected from other District Wells are typically
0.020 mg/L or less.
7.6.3 Findings Regarding Man-Made Contaminants. Man-made Contaminants are
defined as undesirable substances not normally present in Groundwater which result in a
degradation of Groundwater quality for those substances. Man-made Contaminants which occur
most frequently in the Basin are volatile organic chemicals(VOCs) including: vinyl chloride
(VC); 1,4-Dichlorobenzene (1,4-DCB);tetrachloroethene (PCE); 1,2-Dichloroethane(1,2-DCA);
cis-1,2-Dichloroethene(1,2-DCE); Trichloroethene(TCE); Benzene, Toluene, Ethylbenzene
and Xylenes(BTEX); and Methyl Tert-Butyl Ether(MtBE). The first six listed VOCs are
i
,I
, collectively referred to as chlorinated hydrocarbon compounds (CHCs). These CHCs are most
often used as industrial agents used for degreasing metals, cleaning electronic parts and dry
cleaning fabrics. They are also contained in many household products such as oil-based paints,
drain cleaners, spot removers, engine degreasers and paint removers. BTEX and MtBE are
aromatic compounds and alkyl ethers, respectively, which occur in gasoline.
CHCs have been detected in Groundwater underlying the former Meyers
Landfill facility in the east-central portion of the Basin and are also prevalent in the South Y
Area, in the west central portion of the Basin and near Stateline, in the north-east portion of the
Basin. CHCs have been detected in water from the District's Blackrock Well #1, Clement Well,
Industrial Well #2,Julie Well, and the Tata Well#4. Contaminant levels in water from the
Clement Well and the Julie Well have exceeded the MCL for PCE of 0.005 mg/L. Water from
these Wells and the Tata Well#4 are treated to remove CHCs prior to water supply use. Levels
of CHCs in the Industrial Well #2 and Blackrock Well #1 have not exceeded MCLs. Presently,
the source of Contamination in these Wells are unknown. Investigations to identify potential
sources of this Contamination are on-going.
The primary source of MtBE contamination in the Basin is from spills and
releases associated with the operation of gasoline storage and fueling facilities. Most of these
facilities are retail Petroleum outlets. At a majority of these facilities, MtBE has been detected in
Groundwater underlying these Sites. Therefore, the distribution of this contamination closely
corresponds to the locations of gasoline storage and fueling facilities, which are located
primarily along the Highway 50 corridor from Stateline to Meyers. At many of these Sites,
MtBE contaminant Plumes have impacted significant portions of the Basin and have degraded
the water quality of water producing zones used by District Wells. Significant areas of MtBE
Groundwater Contamination occur in the Meyers area, in the South Y Area,the lower portion of
the Upper Truckee River, near the intersection of Highway 50 and the lower portion of Trout
Creek near the intersection of Highway 50 and along Highway 50, near Stateline.
The District has removed twelve (12) Wells from service and reduced the
operating rate of one(1) municipal water Well due to MtBE Groundwater Contamination. MtBE
has been detected in water from the District's Arrowhead Well #1, Arrowhead Well#2,
Arrowhead Well #3,Julie Well, South Y Well, Tata Well #1, Tata Well#2, Tata Well #3, and
the Tata Well #4. Contaminant levels in water from the South Y Well and the Tata Well#4 have
exceeded the secondary MCL for MtBE of 0.005 mg/L (equivalent to five(5) parts per billion).
In portions of the Basin,the arrangement of Aquifers and confining layers and the construction
of some District Wells is such that there is little, if any hydraulic separation between the
uppermost portions of the water table Aquifer and the water producing zones used by most of
those Wells. Therefore, additional District Wells have been removed from service to prevent the
Contamination of neighboring District Wells and to inhibit the further spreading of MtBE
Contamination within the Basin.
7.6.4 Findings Regarding Groundwater Levels.The basin-fill deposits consist of
sequences of sand and gravels which are inter-layered with silts and clays. The sand and gravel
deposits form the principal water-bearing reservoirs (Aquifers), while the silt and clay deposits
form confining layers(aquitards)which retard the movement of Groundwater. Where these
confining layers separate adjoining Aquifers,the water level elevations measured in these
Aquifers may differ. As a result, Groundwater leveis within the Basin vary with respect to
location and construction of the Wel(s in which the water level is measured. Groundwater levels
�
�
� within the Basin also fluctuate in response to seasonal Aquifer Recharge and discharge cycles
and the hydraulic influences of pumping Wells.
Static water level elevations from the majority of District Wells provide water-
level elevations for Aquifers occurring at depths from between 100 to 400 feet below ground
surface. In general, static water level elevations in these Wells typically range from
approximately 6220 feet above sea level (fasl), in the A1 Tahoe area(at the north end of the
Basin)to 6380 fasl in Christmas Valley(at the south end of the Basin) East of the Upper Truckee
River,the general direction of Groundwater flow is to the north-east. West of the Upper Truckee
River, Groundwater flow is to the north. The water-level elevation and ground-water flow
information indicates that Groundwater from these relatively deep Aquifers discharges to Lake
Tahoe.
Static water level elevations for the uppermost portion of the shallow water
table Aquifer are routinely measured by shallow environmental Monitoring Wells. These
Monitoring Wells are typically installed as a result of Contamination assessment investigations
performed within the Basin. Static water level measurements from these Monitoring Wells
suggests Groundwater is very shallow across the Basin and is typicaliy encountered within
twenty feet of land surface. In portions of the Basin,this shallow Groundwater may represent
either a perched water horizon or the top of the water table Aquifer. Water table elevations
typically range: from between 6240 fasl to 6250 fasl along the Highway 50 corridor(within the
northeast quarter of the Basin); from between 6250 fasl to 6270 fasl in the South Y area(within
the northwest quarter of the Basin); and from between 6315 fasl to 6325 fasl in the Meyers area
(near the south end of the Basin).
Comparison of water level measurements collected from environmental
Monitoring Wells and District Wells show that strong downward(negative) vertical hydraulic
gradients are present in the Basin. Negative vertical gradients have been identified during
investigations in the Meyers area, in the South Y area and along the Highway 50 corridor
through the north-central portion of the Basin. Downward gradients typically occur in Recharge
areas within a Groundwater Basin. The observed downward gradients are also believed to resuit
from high Groundwater Recharge rates.
7.6.5 Findings Regarding Zones of Contribution Surrounding District Wells. In
accordance with the DHS DWSAP, the Zones of Contribution(ZOC) shall be defined as follows:
Zone A is defined by the surface area overlying the portion of the Aquifer that
contributes water to the We(( within a two-year time-of-travel.
Zone BS is defined by the surface area overlying the portion of the Aquifer that
contributes water to the Well within a five-year time-of-travel.
Zone B 10 is defined by the surface area overlying the portion of the Aquifer that
contributes water to the Well within a ten-year time-of-travel.
These zones have been delineated for the District Wells occurring within the Plan Area using the
modified calculated fixed radius method and are shown in Figure 3 of this Division. These
ZOCs identify the surface and subsurface areas through which Contaminants are reasonably
likely to reach a Well.
i
�
!
f
At present,there are twenty-five (25) Storage Facilities located in the Plan Area.
Nineteen(19)of the Storage Facilities lie within ZOCs sunounding District Wells. Of the
Storage Facilities identified within District ZOCs, sixteen(16) are actively used for gasoline
starage.These Storage Facilities are distributed such that:
Seven(7) gasoline Storage Facilities, at present, lie within Zone A;
Six(6)gasoline Storage Facilities, at present, lie within Zone B5; and
Three(3)gasoline Storage Facilities, at present, lie within Zone B 10.
Since 1997,the District has removed twelve (12) municipal water supply Wells from
service as a result of man-made Contaminants in Groundwater, specifically MtBE. The source of
this Contamination was associated with fuel delivery, storage or dispensing activities occurring
at Storage Facilities. Because the District Wells have been found to be vulnerable to
Contamination,the District intends to develop an Early Detection Immediate Response (EDIR)
plan to monitor and assist interim remedial actions for the clean-up of potential spills and
releases from Storage Facilities situated within District ZOCs.
If needed,the District may delineate and establish Buffer Zones to the defined ZOCs. The
purpose of the Buffer Zones shall be to provide added protection for District Wells from
activities that may be significant potential sources of Contamination within the Plan Area, but
outside the designated ZOC. The Buffer Zone will be established based on the activities that
occur outside of the ZOC,the presence of Contaminants and the vulnerability of District Wells to
the identified Contamination.
Section 7.7 Studies,Investi�ations and Annual Report.
7.7.1 Data Collections and Investigations. The District may collect data and carry
on technical and other investigations necessary to carry out this Division. All hydrogeological
investigations and studies carried out by, or on behalf of,the District shall be conducted by, or
under the supervision of, licensed engineers, hydrogeologists or other Persons qualified in
hydrology or hydrogeology. The District and its authorized agents shall have the right to enter
upon any property at any reasonable time within the District to the extent permitted by law.
7.7.2 Annual Report on Groundwater Conditions. The District shall prepare
annually a report on Groundwater supplies and conditions in the Plan Area, including
Groundwater management goals and objectives. The report shall identify and prioritize
Groundwater quality problems in the Plan Area, propose specific actions and inter-governmental
agency coordination and an implementation schedule along with an estimated budget including
engineering, consultant and legal fees and expenses, and District overhead, and a summary of
District enforcement actions, if any. The report may include such other information as the
District determines applicable to Groundwater supplies, the Basin and the Plan Area.
7.7.3 Hearing. The District shall hold a public hearing regarding the annual report
on Groundwater supplies and conditions. Upon completion of the hearing,the District shall
make findings and shall by resolution determine the relative priority of those Groundwater
quality problems in the Plan Area which pose the greatest threat to human health,the status of
District water supplies, and the impacts on environment, the specific actions necessary and
appropriate to address the prioritized problems, recommended inter-governmental agency
i
i
�
' coordination,the schedule for implementing the actions and a budget allocating the necessary
resources to address the prioritized problems.
Section 7.8 Establishment of Wellhead Protection Areas.
7.8.1 Water Source Assessment. The District shall establish wellhead protection
areas in a manner which conforms to the methods contained in the DHS DWSAP Program. The
District shall submit its wellhead protection plan and assessment map to DHS for purposes of the
DWSAP Program and make every effort to obtain DHS approval of this Plan.
7.8.2 Locate Drinking Water Sources. The District shall identify the location of all
of its Groundwater sources of drinking water(Wells)within the Plan Area using a global
positioning system (GPS) unit with a sensitivity of 25 meters or less, in accordance with the
DHS DWSAP Program. The location of all sources shall be shown on the assessment map.
7.8.3 Delineation. The District shall identify the protection area for each identified
source. The protection area is comprised of the Aquifer and Recharge area. The District shall
delineate zones for the protection areas using the modified calculated fixed radius method or
other methods approved by DHS, in accordance with the DHS DWSAP Program. The protection
areas and zones shall be shown on the assessment map.
7.8.4 Determination of Physical Barrier Effectiveness. The District shall compile
information characterizing each source to determine the Physical Barrier Effectiveness of each
source. The Physical Barrier Effectiveness and shall consider the degree of confinement of the
Aquifer based on geologic and hydrologic data and each source shall be scored in accordance
with the DHS DWSAP Program.
7.8.5 Possible Contaminating Activities. The District shall identify possible
contaminating activities for each source, in accordance with the DHS DWSAP Program.
Possible contaminating activities are potential origins of significant Contamination in the
de(ineated source water protection area. The District shall identify possible contaminating
activities for all Contaminants of concern listed in the DHS DWSAP Program and any other
Contaminants of concern to the District. The location of the possible contaminating activities
shall be shown on the assessment map. The possible contaminating activities shall be ranked
based on potential risk to a water supply according to the DHS DWSAP Program.
7.8.6 Vulnerability Analysis. The District shall prioritize the vulnerability of each
Groundwater source to develop a vulnerability analysis for each Groundwater source. The
Groundwater sources shall be prioritized based on the Physical Barrier Effectiveness scores of
each Groundwater source and the rankings for each possible contaminating activity performed
in accordance with the DHS DWSAP Program.
7.8.7 Management Plan. Based on the priorities identified in the vulnerability
analysis,the District shall develop and implement a management plan to prevent or minimize the
impact of Contamination from the possible contaminating activities. This management plan
shall conform to requirements of the DHS DWSAP Program.
Section 7.9 Groundwater MonitorinE
i
E
:
�
f
�
7.9.1 Findings. The District finds that releases of Petroleum Products Chemicals of
Concern are a cause of and continue to present a material risk of Contamination. The District
finds it advisable and in the best interest of the District in protecting the quality and quantity of
Groundwater in the Plan Area,to establish and implement a Basin monitoring program. The
Basin monitoring program is intended to provide a means for the early detection of Petroleum
Contamination,and allow for interim Remediation and prevention of future releases of
Contamination. EDIR Groundwater monitoring is a crucial element of and integrated into the
Basin monitoring program because it provides a non-visual means of monitoring for
unauthorized releases of Petroleum Products Chemicals of Concern from Storage Facilities.
7.9.2 Basin Monitoring Program. The Basin monitoring program shall consist of
the measures identified in this Plan and may be further implemented by the District's adoption of
rules, regulations and procedures consistent with this Plan.
(1) Real Property Owner and/or Operator Monitoring. If the Real Property
Owner and/or Operator performs the monitoring, whether voluntarily or at the direction of
another governmental agency, that Person must substantially follow all District rules, regulations
and procedures of the monitoring program. Failure to substantially perform the monitoring in
accordance with the District rules, regulations, and procedures shall be a violation of this
Division. Should the Real Property Owner and/or Operator fail to substantially perform the
monitoring in accordance with District rules, regulations and guidelines,the District may take
action to compel compliance, and/or the District may assume responsibility for the monitoring.
(2) District Monitoring. In the event that the Real Property Owner and/or
Operator does not perform the required monitoring as described above, the District shall conduct
all monitoring. The District shall implement the monitoring program in accordance with
California Water Code §§ 10750, et seq., California Public Utilities Code §§ 15501, et seq., and
any other provision of law applicable to the implementation of the monitoring program.
7.9.3 EDIR Monitoring Well Installation. The District may install EDIR
Monitoring Wells within the Basin or utilize existing Monitoring Wells for the purpose of
monitoring changes and measuring water quality conditions within the Basin. The number and
location of the EDIR Monitoring Wells will be determined by the District exercising its
discretion. The District shall install EDIR Monitoring Wells at its cost and expense.
7.9.4 Location of EDIR Monitoring Wells. Based on the District's wellhead
protection plan and assessment, conducted in accordance with Section 7.8 of this Plan,the
District shall identify the most beneficial locations for EDIR Monitoring Wells. The locations
shall be established in the following manner:
(1) The District shall identify the location of wellhead protection areas and
zones of influence;
(2) The District shall identify the location of existing Monitoring Wells and
determine which are suitab(e for use as EDIR Monitoring Wells; and
(3) The District shall use its discretion to identify appropriate locations for
new EDIR Monitoring Wells based on the following criteria:
�
�
I
(a) The information obtained in the we(lhead protection assessment,
conducted pursuant to Section 7.8;
(b) The relative location of potential Sites compared to existing
Monitoring Wells;
(c) The characteristics of the potential Sites which create a potential
for Contamination; and
(d) Any other factors that the District deems relevant to determine the
appropriate locations for EDIR Monitoring Wells.
7.9.5 Groundwater Monitoring Requirements. Groundwater monitoring shall be
performed at each EDIR Monitoring Well location by the District,the Operator or the Real
Property Owner of the Real Property where the Monitoring Well is located, or both.
(1) The District, in its discretion, shal I determine the sampling frequency for
each EDIR Monitoring Well,taking into consideration the proximity to District's water,the risk
of Contamination associated with the Storage Facility being monitared,the existence and
frequency of any ongoing monitoring performed at the Storage Facility required by another
governmental agency and any other criteria associated with the DHS DWSAP Program
developed pursuant to Section 7.8 of this Plan.
(2) The District shall work with the Operator and/or Real Property Owner
where such EDIR Monitoring Well(s) is to be located to determine the schedule and protocol for
the EDIR Groundwater monitoring and,to the extent reasonably possible, minimize any
duplication of monitoring being performed at the Storage Facility for or by other Governmental
Agencies.
7.9.6 Monitoring. To protect and/or enhance the quality and quantity of water within
the Basin,the District shall conduct a Basin Monitoring Program. The monitoring Program may
consist of the measures identified in this Plan and will be implemented by the adoption of rules,
regulations and procedures.
(1) Existing Monitoring. If the Operator and/or Real Property Owner is
performing monitoring pursuant to the requirements of another governmental agency, the District
may accept such monitoring schedule and results, provided they substantia(ly conforms to the
District's rules, regulations and procedures as related to the monitoring program.
(2) District Monitoring. The District shall perform all monitoring of new
EDIR Monitoring Wells installed pursuant to this Plan and existing EDIR Monitoring Wells
when there is no monitoring or the existing monitoring does not substantially conform to all the
District's rules, regulations and procedures as related to the Monitoring Program.
7.9.7 New EDIR Monitoring Well Construction. EDIR Monitoring Wells installed
pursuant to this Plan shall be drilled and installed in accordance with all applicable regulations
contained in the El Dorado County Well Standards Ordinance, the California Underground
Storage Tank Regulations(Section 2648 and 2649 of the California Code of Regulations (CCR)
Title 23, Chapter 16), and the following Plan requirements:
�
I
(1) EDIR Monitoring Wells shall be located down-gradient, if possible, and as
near as possible to each Underground Storage Tank Basin, as determined in the discretion of the
District, within the boundaries of the Real Property encompassing the Storage Facility with the
following minimum requirements:
(a)One or more Underground Storage Tanks- one EDIR Monitoring Well
situated near the centerline of the Underground Storage Tank Basin, near the fill end of the tank.
(b) Pipelines -one EDIR Monitoring Well situated near the down-
gradient margin ofthe fueling apron.
(c) The District shall have the discretion to require fewer or more EDIR
Monitoring Wells.
(2) EDIR Monitoring Wells shall be capable of detecting releases of
Petroleum Products Chemicals of Concern in Groundwater within the uppermost portion of the
water table underlying the Storage Facility.
(3) EDIR Monitoring Welis shall be constructed to allow for the installation
of a low flow dedicated sampling pump for the periodic collection of samples for laboratory
analysis.
(4) EDIR Monitoring Wells shall be constructed to allow for the emergency
installation of an Extraction pump capable of removing contaminated Groundwater at rates
sufficient to capture and prevent the further migration of releases of Petroleum Products
Chemicals of Concern from the most likely release points at the Storage Facility including, but
not limited to,the Underground Storage Tank Basin(s), fueling dispenser island(s), satellite
dispensers and underground piping used for Petroleum fuel conveyance.
(5) EDIR Monitoring Wells shall be clearly marked and locked to avoid
unauthorized access and tampering. Copies of all Well keys shall be maintained in a secured
place on-site at the Storage Facility and at the District headquarters. Copies shall also be made
available to the El Dorado County Environmental Management Department and California
Regional Water Quality Control Board, Lahontan Region, personnel, upon request.
(6) The locations of each EDIR Monitoring Well shall be surveyed using a
global positioning system(GPS) unit with a sensitivity of 5 meters or less, and recorded in
latitude and longitude decimal degrees.
(7) The ground surface and top of casing elevations for EDIR Monitoring
Wells shall be surveyed by a California Registered Land Surveyor.
(8) The District shall be responsible for preparing and/or assembling the
following information and providing copies to the El Dorado County Environmental
Management Department and the California Regional Water Quality Control Board, Lahontan
Region:
�
i
(a) A scaled map of the Storage Facility showing the locations of all
fuel storage and dispensing facilities, including underground lines and identifying the locations
of existing Monitoring Wells and EDIR Monitoring Wells based on information provided by the
Real Property Owner and/or the Operator; and
(b) Copies of pertinent EDIR Monitoring Well information including
completed Water Well Driller's Reports and geologic boring logs.
(c) Copies of EDIR Monitoring Well location information including
the date the GPS location survey was conducted,the GPS Unit(manufacturer/model) used, the
accuracy of the GPS unit(+/- feet), the recorded GPS Well location coordinates, in latitude and
longitude decima( degrees, and the surveyed elevation information for each EDIR Monitoring
Well.
7.9.8 Existing EDIR Monitoring Well Construction. In accordance with section
7.9.4 of this Plan,the District shall identify the location of existing Monitoring Wells to
determine which are suitable for use as EDIR Monitoring Wells. The existing Monitoring Wells
accepted by the District as EDIR Monitoring Wells shall substantially conform to the
requirements of Section 7.9.7 for new EDIR Monitoring Well construction except that existing
Monitoring Wells do not need to be constructed to allow emergency installation of an extraction
pump for removing contaminated Groundwater. In the event an existing Monitoring Well no
longer substantially conforms to the above requirements,the District may install a new EDIR
Monitoring Well(s).
7.9.9 Monitoring Reports. The Real Properly Owner and/or the Operator or both
shall, for a period of five(5)years, maintain reports of all samples taken from EDIR Monitoring
Wells. Reports of all samples maintained by the Real Property Owner and/or Operator shall be
submitted to the District in an electronic format acceptable to the District within ten (10)
business days of each sampling event.
7.9.10 Failure to Report. Failure to supply any monitoring report or falsification of
any monitoring report shall constitute a violation of this Division.
7.9.11 Best Management Practices. The District shall adopt Best Management
Practices with the goal of detecting and preventing releases of Petroleum Products Chemicals of
Concern. The District shall coordinate its Best Management Practices with those of the Tahoe
Regional Planning Agency. In addition to requiring compliance with the District's Best
Management Practices, the District shall encourage real property Owners and/or Operators to
comply with the Tahoe Regional Planning Agency's Best Management Practices.
Section 7.10 Resaonse to Contamination.
7.10.1 Groundwater Release Prevention and Response Plan. Each Property Owner
and/or Operator of a Storage Facility shall submit to the District a Groundwater Release
Prevention and Response Plan (GRPRP) within two(2) months of the adoption of the Ordinance
enacting this Division. A copy of the GRPRP shall also be provided to the El Dorado County
Environmental Management Department and the California Region Water Quality Control
Board, Lahontan Region, for Storage Facilities not yet in operation at the time of adoption of this
�, ordinance,the GRPRP shall be submitted within two(2) months of beginning operations. Along
!
I
with the GRPRP, a copy of the El Dorado County Environmental Management Department
approved Unauthorized Release Response Plan (or its equivalent) shall also be submitted to the
District. The District, in cooperation with the Lahontan Regional Water Quality Control Board
and El Dorado County Health Department, shall have the discretion to, modify the GRPRP as
necessary to develop a comprehensive and specific interim Remediation action plan and regulate
the migration of Contamination in the Groundwater. The GRPRP shall include a detailed and
specific discussion of the interim Remediation action that will be taken to respond to and
remediate any release of Petroleum Products Chemicals of Concern from Storage Facilities,
including, but not limited to the following elements:
(1) A provision designating either the Real Property Owner or the Operator as
the person or entity responsible(GRPRP Responsible Party) for implementing the GRPRP for
the respective Storage Facility. The GRPRP shall include the written approval of both the Real
Property Owner and the Operator of the Storage Facility of the designated GRPRP Responsible
Party;
(2) A provision requiring the GRPRP Responsible Party to contact the
District,the El Dorado County Environmental Management Department, and the California
Regional Water Quality Control Board, Lahontan Region, within twenty-four(24)hours of a
known release of Petroleum Products Chemicals of Concern;
(3) A description of the actions and a schedule for the actions to be taken by
the GRPRP Responsible Party in the event of a known release of Petroleum Products Chemicals
of Concern;
(4) A description of the actions and a schedule for the actions to be taken by
the GRPRP Responsible Party in the event an EDIR Monitoring Well identifies a release of
Petroleum Products Chemicals of Concern;
(5) A list of personnel, including name, address, and business phone number,
who would be used to directly respond to a release of Petroleum Products Chemicals of Concern;
(6) A list of equipment and equipment vendors including contractor contact
name, address, and business phone number, who would be used to directly respond to a release
of Petroleum Products Chemicals of Concern;
(7) A provision for the GRPRP Responsible Party to submit follow-up reports
to the District regarding the interim Remediation actions taken and results of that action as
required by the California Regional Water Quality Control Board, Lahontan Region.
(8) A provision for the GRPRP Responsible Party to submit a final report
upon completion of the interim Remediation actions to the District,the EI Dorado County
Environmental Management Department, and the California Regional Water Quality Control
Board, Lahontan Region.
7.10.2 Confirmation Sampling. If any sample from any EDIR Monitoring Well
detects concentrations of Petroleum Products Chemicals of Concern at or above the Action
''� Level, a confirmation sample of that EDIR Monitoring Well shall be taken within one(1)
business day of the initial detection. Samples shall be processed and results furnished to the
District within five(5) days of the sampling being taken from the EDIR Monitoring Well. If
results of the confirmation sample do not confirm the results of the original sample, additional
samples shall be taken until the District is satisfied with the accuracy of the sample results.
7.10.3 Interim Remediation. Within fifteen(15) days of the date that Petroleum
Products Chemicals of Concern have been confirmed in an EDIR Monitoring Well,the Real
Property Owner and/or Operator shall implement an interim Remediation action in conformance
with the GRPRP. The primary goal of the interim Remediation action shall be to immediately
remove the contaminant mass from the subsurface and control the spread of Groundwater
Contamination. The interim Remediation action shall continue to be operated uninterrupted until
the Contamination is fully remediated or an on-site Remediation system, as described in Section
7.10.4, is operating in compliance with all applicable governmental agencies with jurisdiction
over the long-term remediation of the contamination, whichever occurs first.
7.10.4 Remediation Assessment and Plan. Within forty-five(45 days)of the date that
Petroleum Products Chemicals of Concern have been confirmed in an EDIR Monitoring Well in
concentrations at or above an Action Level, the Real Property Owner and/or the Operator shall
complete a Remediation assessment and submit an on-site Remediation plan to the Regional
Water Quality Control Board, Lahontan Region, in accordance with its requirements. A copy of
the on-site Remediation assessment and system plan shall also be provided to the District.
7.10.5 On-Site Remediation System. The Rea( Property Owner and/or Operator
shall implement the on-site Remediation system plan in accordance with the California Regional
Water Quality Control Board, Lahontan Region's requirements. The District may seek
approval from the California Regional Water Quality Control Board, Lahontan Region,to alter
the on-site Remediation system plan, if the District determines alternative or additional
remediation is required to effectively clean-up or regulate the migration of Contamination in the
Groundwater. The Real Property Owner's and/or Operator's failure to comply with the rules,
regulations and requirements of the California Regional Water Quality Control Board, Lahontan
Region, shall also constitute a violation of this Division, to the extent permitted by law.
7.10.6 Identification of Source of Release. Upon identifying a confirmed release of
Petroleum Products Chemicals of Concern, the District shall contact the Real Property Owner
and/or Operator where the release occurred and the El Dorado County Environmental
Management Department to perform an inspection to confirm that all portions of the Storage
Facility are operating properly and are not leaking. The Real Property Owner and/or Operator
shall make every reasonable effort to promptly determine and correct the source of the release.
During the Storage Systems Inspection, the El Dorado County Environmental Management
Department shall be the agency responsible for directing all testing, as needed, of the pertinent
Storage Faci(ity components using the best available technology as determined by the El Dorado
County Environmental Management Department. The Real Property Owner and/or Operator of
the Storage Facility shall maintain copies of all El Dorado County Environmental Department
Inspection Reports with respect to the release of petroleum products and chemicals of concern at
the Storage Facility with copies provided to the District or made available to the District, upon
request.
7.10.7 Evaluation of Report. Based on the findings of the Storage System Inspection,
the Real Property Owner and/or Operator of the Storage Facility, in coordination with the El
Dorado County Environmental Management Department, shall be the agency to determine the
procedures to be taken to repair the Storage Facilities to prevent further and future releases of
��I
Petroleum Products Chemicals of Concern. Based on the District's evaluation of the findings of
the Storage System Inspection, conducted pursuant to Section 7.10.6, and the conditions of the
Basin in the area of the release,the District may request that the El Dorado County
Environmental Management Department take additional action to prevent further contamination
or to facilitate repairs, including, but not limited to, issuing an order that the Storage Facility be
temporarily shut-down.
7.10.8 Repair of Facilities. After the results of the Storage System Inspection,
conducted pursuant to Section 7.10.6, have been reported to the District, and the source of the
release has been identified, the Real Property Owner and/or the Operator shall repair the system
in accordance with the EI Dorado County Environmental Management Department requirements
and procedures to prevent any future release of Petroleum Products Chemicals of Concern. The
Real Property Owner and/or the Operator shall provide the District with a copy of the notice
from the El Dorado County Environmental Management Department confirming that the
required repairs have been completed and that the Storage Facility is fuel-tight.
7.10.9 Failure to Identify Source of Release. Should the Storage System Inspection
pursuant to Section 7.10.6 fail to identify the source of the release, the District may request that
the El Dorado County Environmental Management Department take such other action to prevent
further contamination including, but not limited to, issuing an order to temporarily shut-down the
Storage Facility. The Real Property Owner and/or Operator shall conduct follow-up inspections
until the source of the release is identified. Upon identification of the source of release, the Real
Property Owner and/or Operator shall notify the El Dorado County Environmental Management
Department to inspect the identified source of release. Following visual inspection,the Real
Property Owner and/or Operator shall complete the necessary Repairs.
7.10.10 Restart of Handling and/or Storage Facilities. The El Dorado County
Environmental Management Department has the discretion to withdraw its prior issued order of
temporary shut-down, and allow the Storage Facility to restart operations in accordance with its
rules and regulations. The Real Property Owner and/or Operator shall notify the District when
the Storage Facility operation is restarted.
7.10.11 Point of Compliance Well Installation. Point of compliance Monitoring
Wells installed between the Site and the nearest District water supply Well shall be used to the
fullest extent possible to ensure that Contamination from the Site does not migrate undetected
from the Site or beyond the EDIR Monitoring Wells. The District shall provide criteria for the
design and placement of the point of compliance Well(s).
7.10.12 Remediation Monitoring. The Remediation Responsible Party shall monitor
the Remediation action as required by the California Regional Water Quality Control Board,
Lahontan Region. The Real Property Owner and/or Operator shall provide the District with
reasonable access to the point of compliance Well(s)to conduct its own monitoring. The
Remediation Responsible Party shall submit copies of all reports to the District at each
monitoring interval as required by the California Regional Water Quality Control Board,
Lahontan Region. Based on the reports, or the results of the District's own monitoring, the
District may seek modification of the Remediation action by the California Regional Water
Quality Control Board, Lahontan Region,to ensure quick, efficient and thorough containment
and Remediation of the Contamination, and to prevent Contamination from migrating to the
�� District's Well(s).
�
�
Section 7.11 Enforcement.
7.11.1 Violation. Violation shall mean any act or omission, or an attempt, that
contravenes any of the provisions of this Division or other provisions of law.
7.11.2 Cease and Desist Order. The District may issue an administrative order
requiring any Responsible Party to cease and desist the activity which is causing or contributing
to Groundwater contamination.
7.11.3 Court Ordered Restraining Order. The District may apply for a restraining
order against any Person who violates any section of this Division. The application for
restraining order sha(1 comply with Code of Civil Procedure sections 513.010 and 525, et seq.,
California Rules of Court Rule 359 and other laws, as applicable.
7.11.4 Administrative Hearing.
7.11.4.1 Administrative Hearing Request. Any Person who receives a
cease and desist order or a notice that administrative fines and penalties are due may contest that
there was a violation or that he or she is the Responsible Party, by completing a request for
administrative hearing form and returning it to the District within twenty(20)days after the
District gives notice of the cease and desist order or of the administrative fines and penalties. In
the case of a request for an administrative hearing to review administrative fines and penalties,
the requesting party shall make an advance deposit of the fine or penalty at the time of
submitting the request for administrative hearing form.
7.11.4.2 Administrative Hearing Procedures. Upon receipt of a request
for administrative hearing form and deposit, if applicable, the District shall hold an
administrative hearing at the next regularly scheduled board meeting to determine whether the
recipient of the notice of violation is responsible for a violation of this Division. The hearing
shall be conducted pursuant to the United States Constitution and California Government Code
section 11400, et seq.
7.11.5 Administrative Fines and Penalties. Any Person who violates any section of
this Division shall be subject to administrative fines and penalties pursuant to Government Code
section 53069.4. Each day's continuance of a violation of an ordinance shall constitute a separate
and additional violation.
(1) Amount. The District may impose a fine or penalty not to exceed $100 for
a first violation, $200 for a second violation of the same section of this Division within one year,
and $500 for each additional violation of the same section of this Division within one year.
(2) Notice. The District shall notify the Responsible Party responsible for a
violation of this Division that administrative fines and penalties are due. Such notice shall be in
writing, and shall be delivered by first-class mail addressed to the Responsible Party at the
, Responsible Party's last known address, and posted on the property where the violation occuned.
Notice of an administrative fine or penalty shall contain the following information:
j (a) The date of the violation;
€
(b) The address or a definite description of the location where the
violation occurred;
(c) The section of this Division violated and a description of the
violation;
(d) The amount of the fine for the violation;
(e) A description of the fine or penalty payment process, including a
description of the time within which and the place to which the
fine or penalty shall be paid;
(fl An order prohibiting the continuation or repeated occurrence of the
ordinance violation described in the notice; and
(g) A description of the administrative review process, including the
time within which the administrative fine or penalty may be contested and the place from which
a request for hearing form to contest the administrative fine or penalty may be obtained.
(3) Payment. The fine or penalty shall be paid to the District within thirty
(30)days after posting of the notice of violation. Any fine or penalty paid shall be refunded if it
is determined, after a hearing,that the Person charged was not responsible for the violation or
that there was no violation as charged.
(4) Collection. Remedies for collecting and enforcing fines and penalties for
violation of this Division are cumulative and any and all may be used alternatively, and none of
the remedies are exclusive. At its discretion, the District may employ the following mechanisms
for the collection of fines and penalties:
(a) Fines and penalties imposed for violation of this Division may be
added to and become part of the charges fixed by the District for commodities and services
furnished to the Real Property where the violation occurred if the Real Property is owned,
controlled, or in the possession of the same Person who owned, controlled, or was in possession
of it during the time the violation occurred, pursuant to California Water Code § 10754.
(b) Fines and penalties imposed for violation of this Division may be
added to and become part of the annual assessment levied upon the land where the violation
occurred if the Real Property is owned, controlled, or in the possession of the same Person who
owned, controlled, or was in possession of it during the time the violation occurred, pursuant to
California Water Code § 10754, and in accordance with Public Utilities Code § 16469. Fines
and penalties added to an assessment are a lien on the land, in accordance with Public Utilities
Code § 16470.
(c) Fines and penalties imposed for violation of this Division may
become a lien on the land where the violation occurred if the District records a certificate of the
''i amount of fines and penalties due, pursuant to California Water Code § 10754 and Public
Utilities Code § 16472.1.
(d) Fines and penalties may be collected in the same manner, by the
same Persons, and at the same time together with the general t�es levied for the District,
pursuant to California Water Code § 10754 and Public Utilities Code §§ 16641 et seq..
(e) Fines and penalties may be collected by an action in any court of
competent jurisdiction against a Person or Persons who owned the Real Property where the
violation occurred for the collection of ali fines and penalties, pursuant to the provisions of the
Public Utilities Code § 16647.
7.11.6 Judicial Review. Any Person aggrieved by the District's final administrative
decision to impose fines and penalties for violation of this Division may obtain review of the
administrative decision by filing an appeal to be heard by the appropriate court in El Dorado
County in accordance with the timelines and provisions stated in California Government Code
section 53069.4. Any Person aggrieved by the District's final administrative decision to issue
fines and penalties may obtain review of the administrative decision by filing a petition for writ
of mandate in the court in accordance with Government Code section 11523 and Code of Civil
Procedure section 1094.5, et seq.
7.11.7 Liability. The Real Property Owner and the Operator shall be jointly and
severally liable for compliance with the provisions of this Division. The Real Property Owner
and Operator may allocate liability between themselves by contract or otherwise but any such
allocation shall not effect compliance with this Division nor be binding upon the District. The
District in pursuing its remedies may proceed against Real Property Owner,the Operator, or
both, as determined by the District in its sole discretion.
7.11.8 Rules and Regulations. The District shall have the authority to promulgate
rules, regulations and procedures to implement and carry out the intent and purpose of this Plan,
provided such rules, regulations and procedures are consistent with this Plan and reasonably
related to the intent and purpose of this Plan.
Section 7.12 Costs of Implementin�Plan.
7.12.1 Findings. The District finds and declares that this Plan is necessary for the
protection of Groundwater resources within the District, and that it is in the public interest and
will benefit all Persons residing within the Plan Area. The District further finds and declares that
specific categories of activities pose greater threats to Groundwater quality than others, and that
Persons engaged in those activities should be responsible for a proportionate share of the costs of
implementing this Plan based on the proportionate risk posed by their activities.
7.12Z Charges. The District may include the costs associated with this Plan in the
District's charges for commodities and services in accordance with Public Utilities Code section
'� 16467 and the ordinances, rules and regulations of the District. The District may include the
costs ofthis Plan in(1) general charges for commodities and services, and charge the costs
; uniformly to all District customers; (2) special charges for commodities and services, and charge
the costs to a special class of customers engaged in activities which increase the potential for
Groundwater Contamination; or(3)a combination of general and special charges.
7.12.3 Special Taxes. The District may assess special taxes to raise funds for carrying
on its operations and paying its obligations, in accordance with Public Utilities Code section
16641, et seq. All special taxes assessed by the District must be applied uniformly to all
taxpayers.
7.12.4 Replenishment Assessments. The District may impose Replenishment
assessments for the collection of costs associated with the removal of Contaminants from the
Groundwater supplies of the District, in accordance with California Water Code section 60300,
et seq.
7.12.5 Groundwater Management Account. All monies collected by the District
pursuant to this Division shall be placed in the District's Water Enterprise Fund.
Section 7.13 Amendment/Termination.
7.13.1 Amendment/'Termination. This Plan may be amended by the District from
time to time after its adoption, or may be terminated at any time by the District. Amendments or
termination will be considered and approved, or disapproved, only at a noticed public hearing by
the District.
,���