Agenda Items BOARD AGENDA ITEM 4a
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: May 3, 2018
ITEM – PROJECT NAME: South Y Feasibility Study REQUESTED BOARD ACTION: Accept the cost proposal from Construction Materials Engineers, Inc., to complete soil testing for the South Y Feasibility Study in an amount not
to exceed $5,000.
DISCUSSION: The District is planning to conduct a groundwater investigation in the
South “Y” Area. The purpose of this investigation is to collect subsurface data that
would be used for the engineering design of extraction wells to remove
tetrachloroethylene (“PCE”) contamination from groundwater. As part of this
investigation, soil samples will be collected from selected depth intervals for particle size
distribution analysis and soils permeability testing. Results from particle size analysis will
be used for test well design. Results from the soil permeability testing will be used for
engineering evaluation of contaminant migration through the subsurface.
Staff recommends that the Board accept the cost proposal from Construction Materials
Engineers, Inc., (“CME”) to complete soil testing services in an amount not to exceed
$5,000. CME laboratory test rates for these services are provided in the attached cost
proposal dated April 19, 2018.
Costs for these services will be funded, in part, under the executed Proposition 1
Groundwater Grant Agreement 1712508 for the South Y Feasibility Study.
SCHEDULE: May through June 2018
COSTS: Not to exceed $5,000
ACCOUNT NO: 2030-6050/17W006
BUDGETED AMOUNT AVAILABLE: ($48,740)
ATTACHMENTS: Soil Testing, South Y Feasibility Study (CME, April 19, 2018)
_____________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
General Manager
Richard H. Solbrig
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Duane Wallace
Ivo Bergsohn December 5, 2019 Page 2
BOARD AGENDA ITEM 4b
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: December 5, 2019
ITEM – PROJECT NAME: South Y Feasibility Study of Remedial Alternatives
REQUESTED BOARD ACTION: Accept Agreement Amendment Request C received from
Kennedy/Jenks Consultants for additional engineering consultant services requested to
complete the South Y Feasibility Study of Remedial Alternatives.
DISCUSSION: In August 2017, the Board authorized staff to enter into an Agreement with
Kennedy/Jenks Consultants (KJC) to complete an engineering Feasibility Study of
Remedial Alternatives (Feasibility Study) and develop a recommended remedial
alternative to address tetrachloroethylene (PCE) contamination found in groundwater
used for drinking water supply within the South “Y” Area of the City of South Lake Tahoe
(District Task Order No. 5). This work is being funded, in part, through a Proposition 1
Groundwater Planning Grant Agreement (Agreement) administered through the State
Water Resources Control Board Division of Financial Assistance (SWRCB – DFA).
In October 2019, the Board accepted the Revised Agreement Amendment Request B
for engineering consultant services required to complete the Feasibility Study by
January 31, 2020. During conference call meetings with the project Technical Advisory
Committee (TAC) on October 21, 2019, and on November 6, 2019, the TAC requested
that the project team broaden the scope of the Feasibility Study to include a potable
reuse option for Alternative 2. Extra work to evaluate this option would require
performing additional analysis comparing life-cycle costs for potable water reuse to life-cycle costs for treated water disposal in terms of identifying permitting, infrastructure,
operations and maintenance (O&M) and on-going monitoring costs that would be
required for each option. It is estimated that this analysis would require an additional
three months to complete.
The total amount of the Agreement Amendment C request is $19,995. Approval of Amendment C would raise the cost ceiling for Task Order No. 5 to $603,018. As the
requested analysis is integral to selecting an appropriate recommended alternative for the Feasibility Study, District staff recommends that the Board accept the Agreement
Amendment Request C received from KJC.
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn December 5, 2019 Page 2
During November 2019, the District submitted a request for a time extension changing the project completion date from January 31, 2020, to June 30, 2020; and a deviation
budget request increasing the total project budget by $78,140 for the added costs of deviations to the original budget incurred during execution of this work, including the
extra work included with Amendment C. Under the funding requirements of the Agreement; the budget increase would be distributed on a 50% cost share basis.
SCHEDULE: November 2019 – June 2020
COSTS: $19,995
ACCOUNT NO: 2030-7052
BUDGETED AMOUNT AVAILABLE: <$27,560>
ATTACHMENTS: Agreement Amendment Request C (KJC, 11/21/2019)
___________________________________________________________________________________
CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn Page 2 May 7, 2020
BOARD AGENDA ITEM 4b
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: May 7, 2020
ITEM – PROJECT NAME: South Y Feasibility Study of Remedial Alternatives
REQUESTED BOARD ACTION: Accept Agreement Amendment Request D received from
Kennedy/Jenks Consultants for additional engineering consultant services requested to
complete the South Y Feasibility Study of Remedial Alternatives in the amount of $6,360.
DISCUSSION: In August 2017, the Board authorized staff to enter into an Agreement with
Kennedy/Jenks Consultants (KJC) to complete an engineering South Y Feasibility Study
of Remedial Alternatives (Feasibility Study) and develop a recommended remedial
alternative to address tetrachloroethylene (PCE) contamination found in groundwater
used for drinking water supply within the South “Y” Area of the City of South Lake Tahoe
(District Task Order No. 5). This work is being funded, in part, through a Proposition 1
Groundwater Planning Grant Agreement (Agreement) administered through the State
Water Resources Control Board Division of Financial Assistance (SWRCB – DFA).
In December 2019, the Board accepted Agreement Amendment Request C for
additional engineering consultant services requested to complete the South Y
Feasibility Study of Remedial Alternatives (Feasibility Study). KJC completed the draft
Feasibility Study (FS) Report and accompanying Interim Remedial Action Plan (IRAP);
and developed presentation materials for the March 31 on-line meeting presenting the
public draft IRAP. Tasks to satisfy remaining submittal requirements under Agreement
D17512508 include finalizing the draft reports; and preparation of a Final Project Report
and Report Summary.
The total amount of the Agreement Amendment D request is $6,360. Approval of
Amendment D would raise the cost ceiling for Task Order No. 5 to $609,378. As the
completion of the tasks is needed to satisfy the remaining submittal requirements under Agreement D17512508, District staff recommends that the Board accept KJC’s
Agreement Amendment Request D (attached).
Under the funding requirements of the Agreement; the budget increase would be
distributed on a 50% cost share basis.
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 May 7, 2020
SCHEDULE: May 2020 – June 2020
COSTS: $6,360
ACCOUNT NO: 2030-7052
BUDGETED AMOUNT AVAILABLE: <$27,560>
ATTACHMENTS: Agreement Amendment Request D (KJC, 4/28/2020)
___________________________________________________________________________________
CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn October 17, 2019 Page 2
BOARD AGENDA ITEM 4e
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: October 17, 2019
ITEM – PROJECT NAME: South Y Feasibility Study of Remedial Alternatives
REQUESTED BOARD ACTION: Approve the Revised Agreement Amendment Request B
received from Kennedy/Jenks Consultants for additional engineering consultant
services needed to complete the South Y Feasibility Study of Remedial Alternatives.
DISCUSSION: In August 2017, the Board authorized staff to enter into an Agreement with
Kennedy/Jenks Consultants (KJC) to complete the engineering of the South Y Feasibility
Study of Remedial Alternatives (Feasibility Study) and develop a recommended
remedial alternative to address tetrachloroethylene (PCE) contamination found in
groundwater used for drinking water supply within the South “Y” Area of the City of
South Lake Tahoe (District Task Order No. 5). This work is being funded, in part, through a
Proposition 1 Groundwater Planning Grant Agreement (Agreement) administered
through the State Water Resources Control Board Division of Financial Assistance
(SWRCB – DFA).
During the Feasibility Study, KJC has performed extra work not envisioned in the original
scope of work. This included:
• Participation in additional Technical Advisory Committee (TAC) meetings and
conference calls
• Preparing an additional version of the final Pre-Design Investigation Report
• Develop and carefully evaluate additional alternatives for the Feasibility Study
• Participate in additional conference calls with project stakeholders and present
at additional public meetings for the Feasibility Study
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn October 17, 2019 Page 2
The work completion date for the Feasibility Study is January 31, 2020. KJC has prepared an amended budget request to estimate the level of effort that will be required to
complete the Feasibility Study. The total amount of this amended request is $34,645. Approval of this amended request would increase the cost ceiling for Task Order No. 5
to $583,023. District staff recommends that the Board approve the revised Agreement Amendment Request B received from KJC.
SCHEDULE: September 2019 – February 2020
COSTS: $34,645
ACCOUNT NO: 2030-7052
BUDGETED AMOUNT AVAILABLE: $7,085
ATTACHMENTS: Revised Agreement Amendment Request B (KJC, 9/25/2019) ___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
BOARD AGENDA ITEM 4e
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: April 19, 2018
ITEM – PROJECT NAME: South Y Feasibility Study REQUESTED BOARD ACTION: Authorize staff to enter into a Purchase Agreement with
Pure Effect Environmental to provide water treatment services needed for the South Y
Feasibility Study in an amount not to exceed $15,000.
DISCUSSION: The District is planning to conduct a groundwater investigation in the
South “Y” Area. The purpose of this investigation is to collect subsurface data that
would be used for the engineering design of extraction wells to remove
tetrachloroethylene (PCE) contamination from groundwater. As part of this
investigation, treatment to remove PCE from groundwater generated during formation
testing, well development and aquifer testing will be needed prior to discharge to the
District’s sanitary sewer collection system.
Quotes for water treatment services were received from two of the three solicited
treatment services providers. Of these three, Pure Effect Environmental (Pure Effect) was
the lowest responsive, responsible bidder. The Pure Effect bid was reviewed and evaluated by Kennedy Jenks Consultants to verify that the quantity of liquid granular
activated carbon (LGAC) provided in the bid was sufficient to treat the volume of groundwater expected to be generated during the field investigation. Based on the
findings of this review, staff recommends that the Board authorize staff to enter into a
Purchase Agreement with Pure Effect for water treatment services at an amount not to
exceed $15,000. LGAC and equipment rental rates for these services are provided in the attached Pure Effect Bid Estimate # PE040505182-CTO, April 5, 2018.
Costs for these services will be funded, in part, under the executed Proposition 1
Groundwater Grant Agreement 1712508 for the South Y Feasibility Study.
General Manager
Richard H. Solbrig
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Duane Wallace
Ivo Bergsohn April 19, 2018 6e Page 2
SCHEDULE: April 2018 through May 2018
COSTS: $15,000 (NTE)
ACCOUNT NO: 2030-6050/17W006
BUDGETED AMOUNT AVAILABLE: ($48,740)
ATTACHMENTS: Pure Effect Bid Estimate # PE040505182-CTO, April 5, 2018
_____________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn June 18, 2020 Page 2
BOARD AGENDA ITEM 5f
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: June 18, 2020
ITEM – PROJECT NAME: South Y PCE Regional Investigation
REQUESTED BOARD ACTION: Enter into an Access Agreement with AECOM Technical
Services, Inc., for temporary use of the Tata Well Site as a staging area for plume
characterization.
DISCUSSION: On June 8, 2020, the District received a request for access to a vacant District
property that could be used on a temporary basis, as a staging area for the storage of
equipment and materials needed by AECOM Technical Services, Inc. (AECOM), to perform
a plume characterization through the South Y Area. The plume characterization is being
performed for the Lahontan Regional Water Quality Control Board (LRWQCB) as part of its
Regional Groundwater PCE Investigation. After careful consideration of the AECOM request, District staff identified the Tata Well Site (APN 03224210 and 03224211) as a property
that could be used for this purpose.
The Access Agreement would allow AECOM access to the Tata Well Site for temporary use
as a staging area for the storage of equipment and materials needed for plume
characterization. The term of access to the property would be limited from July 6, 2020,
through November 1, 2020. Remittance for temporary use of the property is requested at
$2,000 payable in advance from AECOM.
Staff is waiting to receive and review the Certificates of Insurance and endorsements
required under the Access Agreement. The final Agreement will be provided to the Board for approval prior to and at the Board meeting.
SCHEDULE: July 6, 2020, through November 1, 2020
COSTS: N/A
ACCOUNT NO: N/A
BUDGETED AMOUNT AVAILABLE:
ATTACHMENTS: Final Agreement to be provided prior to and at the Board Meeting
___________________________________________________________________________________
CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
General Manager
John Thiel
Directors
Chris Cefalu
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 August 15, 2019
BOARD AGENDA ITEM 4c
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: August 15, 2019
ITEM – PROJECT NAME: South Y Fate and Transport Model
REQUESTED BOARD ACTION: Authorize staff to approve the Scope of Work and Budget
received from the Desert Research Institute for additional modeling work for the South Y
Feasibility Study in an amount not to exceed $6,000. DISCUSSION: Desert Research Institute (DRI) completed its contractual requirements for this project on June 28, 2019. Following completion of this work, the District received
technical comments from the Tahoe Keys Property Owners Association (TKPOA) and notification of direction received from the TKPOA Board of Directors concerning the
proposed use of Tahoe Keys Water Company (TKWC) wells evaluated for the South Y Feasibility Study. At TKPOA’s request, TKWC 2 is being removed from further
consideration as part of Alternative 2 – Targeted Pumping.
Additional modeling work is needed to:
• respond to technical review comments received from TKPOA
• simulate two options developed as revisions to Alternative 2 to identify the benefits of these options in terms of hydraulic control and PCE mass removal
• conduct particle tracking to help identify appropriate sentinel well locations to
monitor the movement of the South Y PCE plume toward neighboring public
water system wells
In order to accommodate this additional work, staff is requesting that the completion
date including Amendments A-H is changed from June 30, 2019, to September 6, 2019.
Approval of this request will increase the total cost of this project under PO 30339 to
$123,216.
Funding for this project is provided on a 50% cost share basis with the El Dorado County
Water Agency (EDCWA).
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 August 15, 2019
SCHEDULE: July 2019 – September 2019
COSTS: $6,000
ACCOUNT NO: 2030-6050
BUDGETED AMOUNT AVAILABLE: $53,096
ATTACHMENTS: Additional modeling budget email (I Bergsohn, 31 July, 2019) ___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn Page 2 June 6, 2019
BOARD AGENDA ITEM 4c
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: June 6, 2019
ITEM – PROJECT NAME: South Y Fate and Transport Model
REQUESTED BOARD ACTION: Authorize staff to raise the cost ceiling for Task Order No. 4
by $1,800 and change the completion date to June 30, 2019, for groundwater
modeling work performed for the South Y Feasibility Study.
DISCUSSION: The Desert Research Institute (DRI) is in the process of conducting its final
alternatives modeling for the South Y Feasibility Study. This will complete the modeling
analysis and evaluation work for this project. Following completion of this work and
preparation of the Fate and Transport Modeling Report, DRI will compile the
groundwater files for delivery to the District. In order to use the final South Y PCE Fate and Transport Model, staff requested that DRI prepare a guidance document for
running this Fate and Transport Model. The document would describe with text and accompanying screenshots the process of providing input data (e.g., pumping rates,
boundary conditions) to the model and extracting results (e.g., groundwater heads, contaminant concentrations) from the model. DRI has provided staff an estimate of
approximately $1,800 for preparation of the guidance document.
On May 10, 2019, staff submitted a Request for Time Extension to the State Water Resources Control Board Division of Financial Assistance (SWRCB-DOFA) changing the
completion date for the South Y Feasibility Study from June 30, 2019, to January 31, 2020. As part of this request, the completion date for the final Fate and Transport
Modeling Report was changed from March 2019 to June 2019. Staff is proposing to change the completion date for Task Order No. 4 to June 30, 2019, in conformance
with the updated project schedule recently submitted to SWRCB-DOFA.
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 June 6, 2019
Staff is requesting that the Board approve this item allowing staff to; 1) increase the cost
ceiling for Task Order No. 4 by $1,800 to allow for preparation of a guidance document
to run the South Y PCE Fate and Transport Model. Approval of this increase will raise the
cost ceiling for Task Order No. 4 to $119,016; and 2)change the completion date for
Task Order No. 4 to June 30, 2019. This is a no-cost time extension to Task Order No. 4.
Funding for this project is provided on a 50% cost share basis with the El Dorado County
Water Agency (EDCWA).
SCHEDULE: May – June 2019
COSTS: $1,800
ACCOUNT NO: 2030-6050
BUDGETED AMOUNT AVAILABLE: $145,000 2019/20
ATTACHMENTS: None
___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn Page 2 May 16, 2019
BOARD AGENDA ITEM 4d
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: May 16, 2019
ITEM – PROJECT NAME: South Y PCE Regional Investigation
REQUESTED BOARD ACTION: Enter into an Access Agreement with AECOM Technical
Services, Inc., for temporary use of the Tata Well Site as a staging area for plume
characterization.
DISCUSSION: On April 4, 2019, the District received a request for access to a vacant
District property that could be used on a temporary basis, as a staging area for the
storage of equipment and materials needed by AECOM Technical Services, Inc.,
(AECOM), to perform a plume characterization through the South Y Area. The plume
characterization is being performed for the Lahontan Regional Water Quality Control
Board (LRWQCB) as part of its Regional Groundwater PCE Investigation. After careful consideration of the AECOM request, District staff identified the Tata Well Site (APN
03224210 and 03224211) as a property that could be used for this purpose.
The Access Agreement would allow AECOM access to the Tata Well Site for temporary use as a staging area for the storage of equipment and materials needed for plume
characterization. The term of access to the property would be limited from June 3, 2019, through November 1, 2019. Remittance for temporary use of the property is
requested at two thousand five dollars ($2,500) payable in advance from AECOM.
District staff has reviewed and approved the certificates of insurance and endorsements required under the Access Agreement. Staff recommends that the Board
enter into this Agreement with AECOM for temporary use of the Tata Well Site.
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 May 16, 2019
SCHEDULE: June 3, 2019 through November 1, 2019
COSTS: N/A
ACCOUNT NO: N/A
BUDGETED AMOUNT AVAILABLE:
ATTACHMENTS: South Tahoe Public Utility District Access Agreement
___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn Page 2 February 21, 2019
BOARD AGENDA ITEM 4b
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: February 21, 2019
ITEM – PROJECT NAME: South Y Fate and Transport Model
REQUESTED BOARD ACTION: Authorize staff to raise the cost ceiling for Task Order No. 4
by $6,885 and extend the schedule to May 1, 2019, to accommodate additional time
required for development of remedial alternatives for modeling services approved for
the South Y Feasibility Study.
DISCUSSION: During modeling evaluation of remedial alternatives developed to
mitigate the effects of tetrachloroethylene (PCE) contamination as part of the South
“Y” Feasibility Study, District staff requested that the Desert Research Institute (DRI)
provide a cost proposal for extra work to evaluate whether an area of very low vertical
conductivity between layers 1 and land 2 can be extended over a broader area than currently represented in the South Y PCE Model. This very low vertical conductivity layer
represents a clay lens identified in subsurface sections across the South “Y” area that
inhibits the vertical migration of PCE. As such this very low vertical conductivity layer will
likely have a significant bearing on the movement and distribution of PCE simulated in the Fate and Transport Model.
Approval of DRI’s request would allow DRI to attempt to recalibrate the model with the
revised clay zone area. Depending on the outcome of this exercise the District could then chose to re-run selected scenarios with the updated model. It is recommended
that the Board approve this extra work as this would be the most cost-effective and practicable way to consider incorporating this change in the model. Staff is also
requesting that the completion date for this work, including Amendments A- F be changed from March 1, 2019 to May 1, 2019. Approval of this request will increase the
total cost of this project under Purchase Order No. 30339 to $106,885.
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 February 21, 2019
Funding for this project is provided on a 50% cost share basis with the El Dorado County
Water Agency (EDCWA).
SCHEDULE: February-May 2019
COSTS: $6,885
ACCOUNT NO: 2030-6050
BUDGETED AMOUNT AVAILABLE: $288,780
ATTACHMENTS: Re-Calibration of South Y PCE Model email (DRI, 4 Feb 2019)
_____________________________________________________________________________________
CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer & Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn Page 2 March 21, 2019
BOARD AGENDA ITEM 4b
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: March 21, 2019
ITEM – PROJECT NAME: South Y Fate and Transport Model
REQUESTED BOARD ACTION: Authorize staff to raise the cost ceiling for Task Order No. 4
to $117,216 and extend the schedule to May 31, 2019, to accommodate continued
work for evaluation of management scenarios for the South Y Feasibility Study. DISCUSSION: On February 26, 2019, the Desert Research Institute (DRI) presented results of its evaluation of management scenarios designed to address the impairment of
Public Water Supply (PWS) Wells resulting from the South Y Plume. Following this meeting, District staff requested DRI provide a cost estimate for continued work to
simulate additional management scenarios using the South Y Fate & Transport Model.
The extra work being considered involves adding six scenarios that build on existing modeling evaluation work completed by DRI. The initial two scenarios would involve
modeling runs under best-and-worst-case conditions adding a replacement well west of the South Y Plume to Scenario (5A/B). Scenario 5A/B has been evaluated and
involves pumping existing PWS wells Tahoe Keys Water Company Well No. 2 (TKWC 2) and Lukins Brothers Water Company Well No. 5 (LBWC 5) situated within the plume at
90% of treatment capacity. The remaining four scenarios (Scenario 6A/B) would involve
additional modeling runs under best- and worst-case conditions, pumping existing PWS
wells (TKWC 2 and LBWC 5) situated within the plume at 90% of source capacity; with
and without replacement wells.
Results of these modeling runs would be used to determine the cost benefit of
increasing treatment capacity at TKWC 2; and determine the best position for siting a
future replacement well with respect to the orientation of the South Y Plume. In order to
accommodate this continued work, staff is requesting that the completion date
including Amendments A-G be changed from May 1, 2019, to May 31, 2019. Approval
of this request will increase the total cost of this project under Purchase Order No. 30339
to $117,216.
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 March 21, 2019
Funding for this project is provided on a 50% cost share basis with the El Dorado County
Water Agency (EDCWA).
SCHEDULE: March – May 2019
COSTS: $10,331
ACCOUNT NO: 2030-6050
BUDGETED AMOUNT AVAILABLE: <$73,551.92>
ATTACHMENTS: South Y PCE modeling email (DRI, 8 March, 2019)
___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn January 18, 2018 Page 2
BOARD AGENDA ITEM 6c
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist MEETING DATE: January 18, 2018
ITEM – PROJECT NAME: South Y Feasibility Study of Remedial Alternatives
REQUESTED BOARD ACTION: Accept the proposed cost Amendment Request #1 in the
amount of $284,000 from Kennedy/Jenks Consultants for out of scope professional and
engineering design services for the South Y Feasibility Study of Remedial Alternatives.
DISCUSSION: In August 2017, the Board authorized staff to enter into an Agreement
with Kennedy/Jenks Consultants (KJC) to complete an engineering South Y Feasibility
Study of Remedial Alternatives (Feasibility Study) and develop a recommended
remedial alternative to address tetrachloroethylene (PCE) contamination found in
groundwater used for drinking water supply within the South “Y” Area of the City of
South Lake Tahoe (District Task Order No. 5). Performance of the Feasibility Study is to be
completed under the terms of a Proposition 1 Groundwater Planning Grant Agreement
(Agreement) currently being negotiated with the State Water Resources Control Board
Division of Financial Assistance (SWRCB – DOFA) for funding.
During negotiation of the funding Agreement, additional tasks were considered for a
Pre-Design Investigation (PDI) that would be used to provide additional engineering
design information for the Feasibility Study. This would entail the performance of a
groundwater investigation to collect important hydrologic and water quality
information that can be used for engineering design of extraction wells for hydraulic
control and removal of PCE contamination from groundwater. The groundwater
investigation would include the drilling and installation of a new Test Well and the use of
existing monitoring wells to describe hydrogeologic units; delineate the vertical extent
of PCE contamination; identify contaminant pathways and determine hydraulic
gradients and groundwater flow directions near the main body of the PCE contaminant
plume.
General Manager
Richard H. Solbrig
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Duane Wallace
Ivo Bergsohn January 18, 2018 Page 2
New requirements for funding were also identified in the Agreement that were not
included in the District’s technical proposal for the Feasibility Study, conditionally
approved for funding by the SWRCB-DOFA in March 2017. These include completion of
added Project Management Reporting; General Compliance Requirements/Project
Effectiveness and Performance; Technical Advisory Committee; and Memorandum of
Understanding tasks that were not included under Task Order No. 5. Performance of the
PDI would also increase work plan and investigation and reporting tasks already
included under Task Order No. 5. All added tasks under Amendment Request #1 are
detailed in the attachment to this Item.
The total cost for Amendment Request #1 is estimated at $284,000. Approval of
Amendment Request #1 would raise the Purchase Order Amount for Task Order No. 5
(P31243) to $548,378. Funding for this project will be supported on a 50% match basis
under funding approved through the Proposition 1 Planning Grant; and El Dorado
County Water Agency cost share funding designated for this project through the
current 2017/18 Fiscal Year.
SCHEDULE: January 2018 – March 2019
COSTS: $284,000
ACCOUNT NO: 2029-6050/17W006
BUDGETED AMOUNT AVAILABLE: Funded through SWRCB and El Dorado County Water
Agency ATTACHMENTS: Agreement Amendment Request #1 – Scope of Work for Pre-Design
Investigation South Tahoe Public Utility District South Y Feasibility Study of Remedial
Alternatives K/J 1770027*00 (28 December, 2017).
_____________________________________________________________________________________
CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
BOARD AGENDA ITEM 6c
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: April 4, 2019
ITEM – PROJECT NAME: South Y PCE Investigation
REQUESTED BOARD ACTION: Enter into a Reimbursement Agreement with Seven Springs
Limited Partnership and Fox Capital Management Corporation to perform a sewer line
investigation, as described in Exhibit A of the Agreement, at a cost reimbursement not to
exceed $2,800, plus $1,000 towards preparation of the Agreement.
DISCUSSION: Pursuant to the Cleanup and Abatement Order No. R6T-2017-0022 (“CAO”)
issued by the Lahontan Regional Water Quality Control Board (Water Board) in May 2017, as
amended; Seven Springs Limited Partnership and Fox Capital Management Corporation
(herein referred to as the Working Parties) are required to characterize the lateral and
vertical extents of the tetrachloroethylene and other volatile organic compounds
(collectively VOCs) in groundwater originating from the former Lake Tahoe Laundry Works site
pursuant to a work plan submitted to and approved by the Water Board (Work Plan). As part
of the Work Plan, the Working Parties have proposed to perform a Closed Circuit Television
(CCTV) inspection of a portion of the District’s wastewater system as described in the Scope
of Work (Scope of Work), which is attached as Exhibit A of the Reimbursement Agreement.
Since the District does not allow third parties to access its wastewater system, the District has
proposed to perform the investigation with its own personnel and equipment.
The Reimbursement Agreement would allow the District to perform the sewer line
investigation for the Working Parties at a cost reimbursement not to exceed $2,800, plus
$1000 towards preparation of the Agreement.
SCHEDULE: To be determined (upon favorable field conditions)
COSTS: N/A
ACCOUNT NO: N/A
BUDGETED AMOUNT AVAILABLE:
ATTACHMENTS: Reimbursement Agreement
___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
BOARD AGENDA ITEM 6a
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: January 17, 2019
ITEM – PROJECT NAME: South Y PCE Investigation
REQUESTED BOARD ACTION: Enter into an Access Agreement with Seven Springs
Limited Partnership and Fox Capital Management Corporation for the sampling of
monitoring wells located at the Clement Well Site.
DISCUSSION: On January 9, 2019, the District received a request for access to sample
two existing shallow groundwater monitoring wells (CL-2 and CL-3) located on District
property (APN 023-802-15) at 912 Clement Street, South Lake Tahoe, California. Seven
Springs Limited Partnership (Seven Springs) and Fox Capital Management Corporation
(Fox) are requesting access to conduct groundwater sampling as part of the lateral
and vertical extent investigation ordered by the Lahontan Regional Water Quality
Control Board under Cleanup and Abatement Order R6T-2017-0022. This investigation is
required to determine the lateral and vertical extent of chlorinated hydrocarbons in
groundwater originating from the former Lake Tahoe Laundry Works site, 1024 Lake
Tahoe Boulevard, South Lake Tahoe, California.
The Access Agreement would allow Seven Springs and Fox access to CL-2 and CL-3 for
groundwater sampling. Groundwater sampling is scheduled for February 5, 2019,
weather permitting.
SCHEDULE:
COSTS: N/A
ACCOUNT NO: N/A
BUDGETED AMOUNT AVAILABLE:
ATTACHMENTS: South Tahoe Public Utility District Access Agreement to be provided
prior to and at the Board Meeting ___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 – 4b March 21, 2019
BOARD AGENDA ITEM 4c
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: March 21, 2019
ITEM – PROJECT NAME: Tahoe Valley South Basin Surface/Groundwater Model
As-Needed Modeling Services
REQUESTED BOARD ACTION: Accept the Cost Proposal from the Desert Research Institute to provide the District As-Needed Groundwater Modeling Services over a two-
year period at a not-to-exceed cost of $20,000 per year. DISCUSSION: The Desert Research Institute (DRI) has completed its development of the Tahoe Valley South Basin Hydrologic Model to support implementation of the District’s
2014 Groundwater Management Plan (GWMP). As the Groundwater Sustainability Agency (GSA) for the Tahoe Valley South Groundwater Basin (TVS Basin), the District
relies on this Model to calculate and monitor annual changes in the water budget for TVS Basin. Changes in the water budget are required to be reported to the California
Department of Water Resources (DWR) on an annual basis, by April 1 of each year. The
TVS Basin Model is also used to perform complex hydrologic evaluations in order to help
address groundwater concerns that arise through implementation of the GWMP. For example, the TVS Basin Model is also used as the groundwater flow model for the South
Y PCE Fate & Transport Model.
Since starting work on the TVS Basin Model in August of 2015, DRI has demonstrated
competence and superior qualifications at a fair and reasonable price, exceeding staff
expectations. DRI has also demonstrated responsible project management skills
completing this work on-time and under budget.
In order to maintain the TVS Basin Model and provide modeling evaluation services to
help address future groundwater concerns, District staff is requesting that the Board
accept the Cost Proposal from DRI for As-Needed Groundwater Modeling Services. The
cost for these services is proposed at a not-to-exceed cost of $20,000 per year.
Modeling services exceeding $20,000 in a year would require prior approval from the
Board. As proposed, the Agreement is for a two-year period, extending from April 1,
2019, through March 31, 2021.
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 – 4b March 21, 2019
El Dorado County Water Agency (EDCWA) cost share funding is planned to be used to
cover costs incurred for this project on a 50% match basis.
SCHEDULE: April 2019 – March 2021
COSTS: $40,000
ACCOUNT NO: 2030-6050
BUDGETED AMOUNT AVAILABLE: $145,000 2019/20
ATTACHMENTS: As-Needed Groundwater Modeling Services (DRI, 7 March, 2019)
___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
Ivo Bergsohn Page 2 May 2, 2019
BOARD AGENDA ITEM 6b
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: May 2, 2019
ITEM – PROJECT NAME: South Y Feasibility Study
REQUESTED BOARD ACTION: Direct staff regarding the interim remedial alternatives
being proposed for engineering analysis.
DISCUSSION: Presentation of draft interim remedial actions proposed for further
evaluation under the South Y Feasibility Study. The South Y Feasibility Study (FS) includes
an engineering analysis designed to identify the most cost-effective means of removing
tetrachloroethylene (PCE) from groundwater and the managed use of groundwater
resources in order to maintain drinking water supplies and water quality in the South Y
Area.
Consideration of South Y PCE Model simulation results, FS screening criteria and other
factors raised by representatives from the affected water districts (Lukins Brothers Water Company, Tahoe Keys Water Company and the District) led to the development of
three interim remedial alternatives recommended for engineering analysis:
Alternative 1 - Base Treatment Alternative 2 - Targeted Pumping
Alternative 3 - Conversion to Surface Water Supply
The engineering analysis will define the infrastructure needs, life-cycle costs, and mitigation requirements for each of these alternatives. This analysis will then be used to
identify a recommended alternative for implementation.
The presentation will be used to discuss and receive input from the Board on the interim
remedial alternatives being proposed for engineering analysis, requiring no action from
the Board at this time.
General Manager
John Thiel
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Nick Exline
Ivo Bergsohn Page 2 May 2, 2019
SCHEDULE: N/A
COSTS: N/A
ACCOUNT NO:
BUDGETED AMOUNT AVAILABLE:
ATTACHMENTS: Presentation handouts will be provided at the Board Meeting
___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Sewer/Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
BOARD AGENDA ITEM 6b
TO: Board of Directors
FROM: Ivo Bergsohn, Hydrogeologist
MEETING DATE: March 1, 2018
ITEM – PROJECT NAME: South Y Feasibility Study REQUESTED BOARD ACTION: Execute an Access Agreement with the City of South Lake
Tahoe to allow temporary access of their property at 953 Eloise Avenue for a
groundwater investigation.
DISCUSSION: The District is planning to conduct a groundwater investigation in the
South “Y” Area. The purpose of this investigation is to collect subsurface data that
would be used for the engineering design of extraction wells to remove
tetrachloroethylene (PCE) contamination from groundwater. As part of the planning
for this investigation, the District has identified the City of South Lake Tahoe (CSLT)
property (APN 023-30-109) at 953 Eloise Avenue as an optimal location for siting a test
well.
The District is seeking to enter into an Access Agreement with the CSLT to conduct a
groundwater investigation. The groundwater investigation would include the drilling
and construction of a test well and the performance of an aquifer test. The drilling
program would involve the collection of soil resistance readings and soil description of cores to describe subsurface materials; and the collection of soil and groundwater
samples to define the vertical extent of PCE contamination. Information from the drilling
program would be used for design and construction of the test well. Following well
construction, the new test well would be used for pumping tests to collect groundwater
data needed to determine the hydraulic properties of the aquifer.
The groundwater investigation is planned to start on or about April 1, 2018, and is
expected to be completed within thirty (30) days from the start of the site investigation.
General Manager
Richard H. Solbrig
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Duane Wallace
Ivo Bergsohn March 1, 2018 Page 2
District staff is currently working with the CSLT to define the terms and conditions of the
Access Agreement. A copy of the final Access Agreement will be provided to the
Board on or before the Meeting.
SCHEDULE: April 2018 through May 2018
COSTS: Not Applicable
ACCOUNT NO: 2029-6050/17W006
BUDGETED AMOUNT AVAILABLE:
ATTACHMENTS:
___________________________________________________________________________________
CONCURRENCE WITH REQUESTED ACTION: CATEGORY:
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
BOARD AGENDA ITEM 6c
TO: Board of Directors FROM: Ivo Bergsohn, Hydrogeologist MEETING DATE: March 1, 2018
ITEM – PROJECT NAME: South Y Feasibility Study
REQUESTED BOARD ACTION: Execute an Access Agreement with Liberty Utilities to allow
temporary access of their property at 933 Eloise Avenue for a groundwater investigation.
DISCUSSION: The District is planning to conduct a groundwater investigation in the South “Y” Area. The purpose of this investigation is to collect subsurface data that would be used
for the engineering design of extraction wells to remove tetrachloroethylene (PCE) contamination from groundwater. As part of the planning for this investigation the District
has identified the City of South Lake Tahoe (CSLT) property (APN 023-30-109) at 953 Eloise
Avenue as an optimal location for siting a test well.
In order to access the CSLT property, the District is seeking to enter into an Access Agreement with Liberty Utilities. The Agreement would allow the District temporary access
across the Liberty Property at 933 Eloise Avenue to the CSLT Property; and the temporary
use of approximately 380 sf (19’x 20’) of paved area on the Liberty Property (APN 023-30-
111). The groundwater investigation is planned to start on or about April 1, 2018, and is
expected to be completed within thirty (30) days from the start of the site investigation.
A copy of the final Access Agreement will be provided to the Board on or before the
Meeting.
SCHEDULE: April 2018 through May 2018
COSTS: Not Applicable
ACCOUNT NO: 2029-6050/17W006
BUDGETED AMOUNT AVAILABLE:
ATTACHMENTS: Access Agreement by and between the District and Liberty Utilities (Draft) ___________________________________________________________________________________ CONCURRENCE WITH REQUESTED ACTION: CATEGORY: Water
GENERAL MANAGER: YES NO
CHIEF FINANCIAL OFFICER: YES NO
General Manager
Richard H. Solbrig
Directors
Chris Cefalu
James R. Jones
Randy Vogelgesang
Kelly Sheehan
Duane Wallace
Call Direct to Caleb Osborne 714-639-7873 x 304– Email: cosborne@pureeffect.com
Corporate Offices – 601 W. Valencia Dr., Fullerton, CA 92832 714-639-7873 Fax. 714-639-8530
April 5, 2018 Bid Estimate # PE0405182-CTO
Mr. Evo Bergsohn
South Tahoe Public Utility District
1275 Meadow Crest Drive
South Lake Tahow, CA 96150
530-543-6204
RE: Liquid GAC Water Remediation Field Test 200gpm
Mr. Bergsohn,
Pure Effect, Inc. appreciates the opportunity to present this budgetary proposal for your project.
We will provide South Lake Tahoe Public Utility District with 2,000lb. media vessels capable
treating up to 200 gallons per minute of water/each with a maximum of 75 PSI.
Initial fill of virgin coconut shell carbon: $ 5,500.00
Rental of 2 – PEL2000’s: $ 350.00 /Each / Month
Includes: pressure gauges, sample ports, air relief valve and drain.
Rental of 1 – 4lung bag filtration system: $ 695.00 /Each / Month
Includes: pressure gauges & sample ports.
Shipping and handling charge to jobsite: $ 2,995.00
Return of the Equipment: $ 3,150.00
Includes picking up the equipment but does not include
loading onto the truck. Equipment must be clean and
in good working order or additional charges may apply.
Lead-time: 3-5 Days
Lead-time starts when Notice to Proceed or Purchase Order
Accepted by Pure Effect.
Equipment availability based on current inventory at the time of order.
FOB Fullerton, Ca. Sales tax not included. Terms are Net 30 upon approved credit
Call Direct to Caleb Osborne 714-639-7873 x 304– Email: cosborne@pureeffect.com
Corporate Offices – 601 W. Valencia Dr., Fullerton, CA 92832 714-639-7873 Fax. 714-639-8530
Page 2
RE: Liquid GAC Water Remediation Field Test 200gpm
Exclusions/Clarifications: The following items are excluded in this proposal unless specifically
stated above:any change in treatment conditions (flow rate or contaminants), any dewatering
systems wells or well points, transfer or undergroundpumps, any other operating permits, sewer
usage fees, fines, penalties, onsite system moves, fork lift charges, vandalism, level surface for
treatment equipment, site trenching, non-aqueous treatment / disposal, treatment of water with
turbidity above 500 NTU, influent & effluent piping, influent & effluent monitoring / labs, daily
system operators, monitoring of system pressure, pricing for bonds, prevailing wage rates, bag
filter & filtration media change-outs onsite, system backwashes, hazardous materials, bio fouling,
pH adjustment, odors, noise level, unforeseen market increases such as internationally supplied
granular activated carbon or other medias, fuel surcharges and any site specific licensing required
for the site, OCIP, CCIP, PLP, UCIP Insurance Costs.
Pure Effect will be allowed full access to treatment equipment when needed and delays in access
may be billed at the listed hourly rate. Contractor will provide two week notice for demobilization.
All media will be considered non-returnable when it becomes wet and all new media will have a
35% restocking fee. This information is proprietary and will not be shared with anyone other than
the contractor the proposal was sent to with written permission from Pure Effect.
Pure Effect’s Standard Terms and Conditions apply.Prices listed in this quotation are valid for 45
days. All pricing is considered non-prevailing wage unless otherwise specified in proposal. Rental
agreement ends when the equipment is returned to Pure Effect clean and in working order.
We appreciate the opportunity and look forward to working with you on this project. Please contact
me if you have any questions.
Respectfully submitted,
Caleb Osborne
Regional Sales
Direct – (714) 459-4304
Cell – (714) 715-5759
cosborne@pureeffect.com
Purchaser’s Agreement
______________________________
Name
______________________________ _______________
Signature Date
Call Direct to Caleb Osborne 714-639-7873 x 304– Email: cosborne@pureeffect.com
Corporate Offices – 601 W. Valencia Dr., Fullerton, CA 92832 714-639-7873 Fax. 714-639-8530
Pure Effect is an environmental company that rents, sells and provides services for groundwater
treatment equipment and vapor remediation systems to the construction, industrial and
environmental marketplaces. Our capabilities include:
• Construction Dewatering Treatment • Groundwater Remediation
• Storm Water Treatment
• Soil Vapor Extraction
• NPDES / Industrial Sewer Permitting
• Sampling and Laboratory Analysis
• Odor Control
• Vacuum &Rebed Services
• Holding Tanks and Pump Rental
• Pilot Study
To learn more about our equipment and services please visit www.pureeffect.com
2,000 lb. Media Vessel
Call Direct to Caleb Osborne 714-639-7873 x 304– Email: cosborne@pureeffect.com
Corporate Offices – 601 W. Valencia Dr., Fullerton, CA 92832 714-639-7873 Fax. 714-639-8530
Pure Effect, Incorporated’s Terms and Conditions The following terms and conditions apply to any and all sales, rentals and provision of equipment, services, goods or products designed, manufactured, distributed, leased, provided and/or sold by Pure Effect, Incorporated ("Seller") to the acquirer of the same (“Purchaser”) unless otherwise specified in a writing signed by both by the Seller and the Purchaser. Inconsistent or additional terms in any documents provided by Purchaser shall not alter these Terms and Conditions and impose no obligation on Seller. DELIVERY: Any and all goods, products and equipment (“Equipment”) sold, leased or otherwise provided by Seller are delivered Free On Board at Seller's warehouse in Fullerton, CA 92832. Availability and/or delivery dates in any quote are approximate, unless specified as binding, but any delivery is conditioned upon Seller's prompt receipt from the Purchaser of all specifications, final approved drawings, and any other details essential to the fulfillment of Purchaser's order. Upon notification of Equipment availability by Seller, Purchaser shall promptly arrange for the pick-up of the Equipment and any payment terms tied to notification of availability or delivery shall become effective. Any delay in pick-up shall incur storage fees and any storage shall be entirely at the Purchaser's risk. Unless otherwise agreed upon by Seller, Purchaser shall have the sole responsibility for choosing thecarrier and routing from Seller's warehouse to the final destination, including all costs of freight and insurance. If Seller provides any transportation services, any rates quoted are estimates only. Purchaser will be billed at Seller’s then current rates for the actual time incurred "Portal to Portal" (round trip) for each delivery/mobilization and again on each pick up/demobilization. Standard rates are for normal business hours, 7am to 5 pm on standard business days, and night, weekend and holiday rates are higher. Purchaser will pay applicable rates if Seller unable to pick up rental Equipment a scheduled because the Equipment has not been cleaned, is blocked by other equipment, is in an impassable location, or otherwise not removable by Seller's driver. In addition, the Purchaser will be responsible for, and shall continue to accrue, rental charges until the Equipment can reasonably be removed by Seller. EQUIPMENT SUITABILITY: All Equipment, whether rental or sale, is selected and sized by the specifications provided by Purchaser and changes in conditions, including influent composition, flow rates and/or other factors, may require system change(s) that may increase costs or render the Equipment unusable. Statements regarding the suitability or compatibility of any Equipment made by Seller's personnel or contained in Seller’s documentation are based upon information from material suppliers or public sources and are believed to be accurate. However, since Equipment can be affected by chemical concentrations, pH, temperature, presence of other chemicals and other factors, this information should be considered only as a general guide. Purchaser is ultimately responsible for determining the suitability of the Equipment for use its situation. LIMITED WARRANTY. Seller warrants, for the benefit of Purchaser only, that any Equipment designed and manufactured by Seller is of a professional quality consistent with generally accepted industry standards and, when installed and used in accordance with proper operating standards, will conform to the specifications agreed upon by Seller and Purchaser in all material respects and be free from defects in materials or workmanship for a period of one (1) year from the date of delivery (the “Warranty Period”). This limited warranty is void if the Equipment has been subject to misuse, tampering, neglect, accident, or unauthorized alterations or repairs. This limited warranty is void if the specifications provided by Purchaser were not accurate or the actual operating requirements or conditions are different than the information provided to Seller. Seller makes no warranty for any Equipment designed, manufactured or provided by parties other than Seller. Seller’s sole responsibility, and Purchaser's exclusive remedy for breach of this limited warranty, shall be that Seller shall, at its option, repair or replace the defective or nonconforming part(s) or component(s) of the Equipment. Any claim based on the foregoing warranty must be submitted to Seller within the Warranty Period. THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH ARE EXPRESSLY EXCLUDED OR DISCLAIMED. SELLER SHALL NOT BE RESPONSIBLE FOR CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE OR OTHER DAMAGES (INCLUDING WITHOUT LIMITATION LOSS OF PROFIT, SALES, AND TIME,), WHETHER OR NOT SELLER HAS BEEN BE ADVISED OF THE POSSIBILITY OF SUCH LOSS. SELLER EXPRESSLY EXCLUDES AND DISCLAIMS LIABILITY FOR ANY DAMAGES RESULTING FROM THE USE, OPERATION, IMPROPER APPLICATION, MALFUNCTION OR DEFECT OF ANY EQUIPMENT COVERED BY THIS LIMITED WARRANTY, EXCEPT AS SET FORTH IN THE INDEMNIFICATION PROVISIONS OF THESE TERMS AND CONDITIONS. IF SELLER IS UNABLE TO REPLACE OR REPAIR THE EQUIPMENT, THE TOTAL LIABILITY OF SELLER SHALL NOT EXCEED THE PRICE PAID FOR THE EQUIPMENT AND SELLER SHALL NOT BE LIABLE FOR COSTS OF PROCUREMENT OF SUBSTITUTE EQUIPMENT BY THE PURCHASER. WASTE MANAGEMENT SERVICES: The only responsibility of Seller for hazardous or non-hazardous substances, waste, soils, water or debris (“Waste”) is to coordinate the pickup of Waste from the Purchaser's
Call Direct to Caleb Osborne 714-639-7873 x 304– Email: cosborne@pureeffect.com
Corporate Offices – 601 W. Valencia Dr., Fullerton, CA 92832 714-639-7873 Fax. 714-639-8530
site by the Purchaser’s designated transporter for transport to Purchaser’s designated treatment, storage and disposal facilities (“TSDF”). Seller has no independent discretion with regards to the selection of the TSDF or the transporter, and therefore, at no time shall the ownership of the Waste be transferred from Purchaser and/or the Waste generator to the Seller. Purchaser shall, at all times, be shall be solely responsible to obtain, maintain, and pay for any and all permits, licenses and handling fees arising or related to Purchaser and/or generator's Waste generation, transportation and disposal. SPECIALTY MEDIA: Specialty media on rental Equipment are provided at a flat rate to Purchaser and are "loaded" into vessels unless as otherwise agreed on the applicable final contract terms. All purchases of specialty media are non-refundable once delivered or otherwise provided to Purchaser and become the property of Purchaser. SET UP AND OPERATION: Any and all set up costs (which include influent and effluent lines) are the responsibility of Purchaser unless specifically included in Seller's approved bid quotation. Changes in site conditions requiring additional time will be billed at Seller's current prevailing rates, including actual labor time, materials and other costs or fees incurred. Purchaser shall provide appropriate power source for the system, including a 480/3- phase power (or generator equivalent in size) for electric submersible pumps, and one or more qualified licensed electricians to install the Equipment, including the wiring to any and all pumps, control boxes and power sources. Purchaser is responsible for satisfying all Federal and State regulations and obtaining all permits pertaining to the discharge of treated water and/or air emissions. It is the Purchaser's sole responsibility to determine that water and air quality regulations have been met and to open the system to full discharge only in compliance with such requirements. Purchaser shall provide its own on-site employees to be trained by Seller for operation of the Equipment. Purchaser acknowledges that the Equipment can range from manually operated to fully automated, butin all cases, Purchaser must check operating Equipment at least 1-2 times per every 6 hours of operation to confirm that pumps are fueled regularly (diesel pumps or generator with electric submersibles) and filter units are operating properly. Purchaser is responsible for any minor adjustments that may be necessary. Purchaser shall to pay Seller for any and all required service calls and calls for repairs, other than for inherently defective equipment-related issues, at the Seller's current prevailing rate. RENTAL PERIOD AND CALCULATION OF CHARGES: Rental charges commence upon delivery of the Equipment at the Seller's warehouse and end upon the termination of the specified rental period (day, week or month) after the Equipment is returned to Seller’s warehouse. Rental will be charged for the full specified rental period and will not be pro-rated or reduced for any early return of the Equipment. Rental charges accrue during Saturdays and Sundays and Holidays. Rental rates are for normal usage, which is an 8 hour per day shift, 40 hours a week and 160 hours a month, and operation of Equipment in excess of 8 hours per day will be billed at Seller's standard premium rates. Purchaser shall at all times, truthfully and accurately certify to Seller the time the Equipment was operated. PAYMENT: Rental charges shall be paid as specified in the applicable agreement, but all charges shall be paid in full upon return of the Equipment to Seller or within 30 days after Seller's Invoice to Purchaser, whichever occurs first. Payments for Equipment sales shall be made directly to Seller's office in accordance with the conditions stated in the applicable purchase order and, if not specified, payment shall be due as follows: 40% with purchase order, 50% upon shipment: 10% hold back for up to 30 days after delivery of Equipment. Any payment due from Purchaser that is not paid when due shall bear interest at the lesser of 1.5% per month (18% per annum), or the maximum allowed by applicable law, from the original due date until paid in full. In addition to the right to collect interest, the failure or delay in any payment due Seller shall give Seller the right to repossess the Equipment and/or terminate any further obligation or performance due from Seller. Seller shall be entitled to recover its costs and attorneys’ fees for any legal action filed to collect amounts due from Purchaser. DAMAGES AND LOSS CLAIMS: All claims by Purchaser for loss, damage and delay in transit are to be addressed directly with the carrier. Any and all claims for shortages or incorrect Equipment must be made in writing to the Seller within fifteen (15) days after receipt of Equipment. Failure to provide such notice shall constitute unqualified acceptance and waiver by the Purchaser of all claims for any andall shortages or incorrect equipment. Purchaser shall examine all Equipment upon taking possession thereof and shall inform Seller immediately in writing of any and all alleged damages and deficiencies thereto. Should Purchaser fail to timely notify Seller of any alleged Equipment defects within the initial thirty (30) days after delivery of the Equipment, such defects shall be deemed to have been waived or otherwise accepted. The possibility of subsidence occurring on property, or adjacent properties during or subsequent to dewatering operations is impossible to predict and Pure Effect will not be held liable or responsible for damages that may occur from dewatering activity. INDEMNITY/HOLD HARMLESS/DAMAGES: Purchaser acknowledges that it is solely responsible for operation of the Equipment, assumes all risks inherent in the operation and use of the Equipment, and agrees to take all necessary precaution to protect all persons and property from injury or damage while
Call Direct to Caleb Osborne 714-639-7873 x 304– Email: cosborne@pureeffect.com
Corporate Offices – 601 W. Valencia Dr., Fullerton, CA 92832 714-639-7873 Fax. 714-639-8530
Purchaser is in possession of the Equipment. Seller shall not be responsible to Purchaser or to any other party for any alleged losses, damages or injuries (including any loss of profits, business interruption or other special consequential damages) caused by, resulting from, or in any way connected with the Equipment, its operation or use, or any defect with respect thereto. Purchaser further agrees to defend, indemnify and hold Seller harmless from and against any at all liability, claims and damages of any kind (including attorneys' fees) for injuries or death to persons and damages to property arising out of the use, maintenance, operation, or possession of the Equipment while in Purchaser’s possession, unless caused by Seller’s sole gross negligence or willful misconduct. RETURN OF EQUIPMENT, DAMAGED & LOST EQUIPMENT: At the expiration of the rental term the Purchaser shall return the Equipment cleaned and in the same condition as when delivered to the Purchaser, reasonable wear and tear (as defined below) excepted. Purchaser is responsible for emptying and disposing of any and all used sand, gravel, carbon or other specialty media. Sand filters, cartridge filter units, tanks, pumps, pipe hose and fittings shall be emptied, rinsed, cleaned and reasonably free of all solids and liquids. Depending on the use, Purchaser may need to wash out with a high pressure hose or steam wash with detergent/solvent. In the case of specialty media Equipment rental, Seller can perform cleaning if contracted by Purchaser for such service at an additional fee. If Seller is providing cleaning services, all valves must be opened, cleaned and left in the open position for driver’s safety and Equipment must be free of fluids and/or deposits prior to pick up to allow for transportation. Purchaser will promptly provide any information as may berequired by Seller to evaluating appropriate disposal facilities for any spent media to be disposed of by Seller. Any and all spent specialty media is subjected to testing by Seller. If testing shows the characteristics of the media differs from the information provided by Purchaser, Seller reserves the right to change disposition facilities and Purchaser shall be responsible for any increased costs Seller reserves the right to charge for any repairs, cleaningor disposal not performed by Purchaser. Purchaser shall be liable for any and all damages to or loss of the equipment, including, but not limited to: (1) vacuum or pressure damage; (ii) tilting or upset due to unbalanced load; (iii) overloading; (iv) internal damage caused by adverse side effects of cargo or mixture of cargoes, cleaning solvents and/or cleaning processes undertaken by Purchaser or its agents and (v) any damage during transit to or from Purchaser, unless Seller is the transporter. In the event of any loss, destruction or damage to the Equipment, Purchaser shall promptly pay to Seller the reasonable cost of transportation, repair, and/or replacement and rental fees on the Equipment at the regular rental rate until all repairs have been completed, or the Equipment is otherwise reasonably replaced with Equipment of the same type, quality and purpose. Seller shall be under no obligation to commence repair work, or to otherwise replace the lost, damaged or destroyed Equipment until Purchaser has paid to Seller the estimated cost thereof. In the case of the total loss or destruction of any Equipment, or inability or failure to return same to Seller for any reason, Purchaser shall pay Seller the then current full replacement cost for comparable Equipment, together, with the full rental rate as specified until such Equipment is reasonably replaced. REASONABLE WEAR AND TEAR: Reasonable wear and tear of the Equipment shall mean the normal deterioration of the Equipment caused by ordinary and reasonable use on a one-shift (eight hours per day, forty hours per week) basis. The following shall not be deemed reasonable wear and tear: damage resulting from (i) lack of lubrication or maintenance of necessary oil, water and air pressure levels; (ii) lack of servicing or preventive maintenance suggested in the manufacturer's operation and maintenance manual or as recommended by the Seller; (iii) any collision, over-turning, or improper operation, including over loading or exceeding the rated capacity of the Equipment; (iv) dents, bending, tearing, staining and misalignment to or of the Equipment or any part thereof; (v) the improper installation, or otherwise unmonitored flow of water, air or power while in the possession of Purchaser, (vi) the use in excess of shifts for which such Equipment was rented and not specifically disclosed or previously reported to Seller in writing (prior to the damage); and/or (vii) use of the Equipment which is not considered ordinary and reasonable in the industry. Any and all repairs to the Equipment shall be made only by a facility approved by Seller, to the reasonable satisfaction of Seller and in a manner which will not adversely affect the operation, manufacturer's design or value of the Equipment. FORCE MAJEURE: Seller shall not be liable in damages and have the right to terminate performance if its performance is delayed or prevented by conditions beyond its control including, but not limited to acts of God, Government restrictions, wars, insurrections and/or any other cause beyond the reasonable control of Seller. NOTICES: Any notices required by these Terms and Conditions or otherwise as may be required by the applicable terms of an applicable purchase order and/or by law shall be made in writing and mailed by certified or registered mail, return receipt requested or delivered by a national overnight express courier service with proof of delivery confirmation to Seller as follows: 601 W. Valencia Drive, Fullerton, CA 92832, or to any other address which Seller may otherwise particularly specify in writing and to Purchaser at the address listed on the applicable purchase order or agreement.
Call Direct to Caleb Osborne 714-639-7873 x 304– Email: cosborne@pureeffect.com
Corporate Offices – 601 W. Valencia Dr., Fullerton, CA 92832 714-639-7873 Fax. 714-639-8530
NON-ASSIGNABLE INTERESTS: Purchaser acknowledges that its rights and remedies provided hereunder are personal to Purchaser, and therefore no agreement, nor any goods or services provided pursuant to these Terms and Conditions, nor any part or portion may be assigned, sublicensed or otherwise transferred by Purchaser to any third party without Seller's prior written consent, except for Equipment purchased and paid for by Purchaser. SEVERABILITY: Should any provision of these Terms and Conditions or any part of any resulting agreement be held to be void, invalid, unenforceable or illegal by a court, the validity and enforceability of all other provisions will not be affected thereby. WAIVER Failure of anyparty to enforce any provision of this Agreement will notconstitute or be construed as a waiver of such provision or of the right to enforce such provision or any future right to enforce such provision. TIME Time is of the essence in the performance of the obligations under these Terms and Conditions.
6980 Sierra Center Parkway, Suite 90
Reno, NV 89511
Office 775-851-8205 fax 775-851-8593 www.cmenv.com
April 19, 2018
Mr. Ivo Bergsohn, PG, HG
South Tahoe Public Utilities District
1275 Meadow Crest Drive
South lake Tahoe, California 96150
RE: Soil testing
South Y Feasibility Study
South Lake Tahoe, California
Dear Mr. Bergsohn:
Construction Materials Engineers, Inc. (CME) is pleased to submit the following proposal to complete soil
testing for the South Y Feasibility Study to be completed at South Lake Tahoe, California. This proposal
includes our understanding of the project, the scope of services, and an estimate of our fees.
1.0 Project Description and Scope of Services
It is understood that soil samples from a drilling program for the referenced project will require laboratory
testing. The site investigation will begin on the week of April 30th and soil samples will be delivered to our
office. Required testing includes the following:
➢ From 3 to 4 soil samples for Particle Size Analysis (ASTM D 422 or equivalent) for well screen design.
Particle size analysis is for the silt and sand fractions only. A hydrometer test on the less than silt size
fraction is not required; and
➢ From up to ten soil samples for soil permeability testing – 5 by Constant Head ( ASTM D2434 or
equivalent) and 5 by Falling Head (ASTM D 5084 or equivalent) methods. Soil permeability tests will
be completed by an outside laboratory.
2.0 Cost Estimate and Schedule
A breakdown of the estimate fees is presented in Table 1 below.
TABLE 1-ESTIMATED FEES
Laboratory Test Estimated Fees
Sieve Analysis (ASTM 422) without hydrometer.
4 tests total. $400
Constant head permeability testing (ASTM D2434 or equivalent).
5 tests total. $2,100
Falling head permeability testing (ASTM D5084 or equivalent).
5 tests total, $2,350
Total Estimate Fees $4,850
Soil testing
South Y Feasibility Study
April 19, 2018
Page 2 of 2
4.0 Schedule
We are aware that schedule is important and we will complete testing on a timely basis. Laboratory test
results will be completed between 1 to 4 weeks after soil samples have been received. Sieve analysis tests
will be completed initially.
We thank you for the opportunity to submit this proposal, and look forward to its favorable consideration. If
you have any questions, please call.
Sincerely,
CONSTRUCTION MATERIALS ENGINEERS, INC.
Randal A. Reynolds, PE
Senior Geotechnical Engineer
rreynolds@cmenv.com
Direct: 775-737-7576
Cell: 775-527-3264
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