SB445 Priorities 10.15.18South Lake Tahoe PCE Groundwater Contamination
SB 445 Funding Priorities identified by South Lake Tahoe Water Suppliers
10/15/2018
Listed below are prioritized actions recommended by the water suppliers of South Lake Tahoe (South
Tahoe Public Utility District, Lukins Brothers Water Company and Tahoe Keys Water Company) to be
funded by SB 445 to address the PCE contamination.
1. Site, permit, design and construct 3 sentinel wells to monitor contaminant plume movement:
a. Between plume and LB 1 Well
b. Between plume and TK3 Well
c. Between plume and Bayview Well
2. Well destruction to remove possible contaminant pathways for the following wells:
a. LB4 Well
b. Tahoe Valley Elementary School
c. LB2 Well
d. Inactive private wells (>100 feet) situated within the inferred extent of the contaminant
plume
3. Zone testing to determine the vertical extent of contamination at:
a. TK2 Well
b. Near LB5 Well
4. Long term extraction well test from EW-IC to confirm long-term contaminant mass removal
5. Test hole for possible replacement water supply well at Colorado Court
The South Lake Tahoe water suppliers also recommend the following actions to be taken by SB 445:
1. Test all active private wells within the plume area. The highest priority should be given to
deeper wells (>100 feet).
2. Conduct test hole drilling program to top of regional aquitard at former Norma’s dry cleaner site