SUPPLEMENTAL MATERIAL - Laserfiche WebLink

November 8, 2024 Page 21 7357-013acp printed on recycled paper Resources Control Board’s maps show that the Project site is adjacent to “Drinking Water Wells with Orders for PFAS Monitoring” for Well 08, PS Code CA0110008_004_004.104 The Water Agency Zone 7 commented on the NOP that “Zone 7 has particular concerns about potential use of the Amazon well, due to issues with perfluorinated and polyfluorinated alkyl substances (PFAS). Zone 7 requests that the EIR clearly state the water sources proposed to be used for the Project. If these include the Amazon well, or other sources with potential PFAS concerns, then the EIR should thoroughly evaluate potential impacts due to PFAS contamination.”105 The DEIR fails to analyze the potential PFAS contamination within the Project vicinity. In 2019, pursuant to an order from the California State Water Resource Control Board Division of Drinking Water, the City of Pleasanton (“City”) began testing its water for PFAS including, but not limited to, perfluorooctanoic acid (“PFOA”) and perfluorooctane sulfonic acid (“PFOS”).106 During this testing, the City discovered detectable levels of PFOS and PFOA, among other PFAS chemicals, in its water supply wells. The City filed a lawsuit against 3M for its release, use, and storage of PFAS products at and/or in the vicinity of the City’s water supplies.107 The complaint alleges that 3M allowed PFOS, PFOA, and their chemical precursors to enter the environment, and migrate through the soil, sediment, surface water, and groundwater, thereby contaminating the City’s property groundwater wells. The City and 3M have entered into a settlement agreement to cover the substantial costs of removing these “forever chemicals” from the City’s water supply or finding alternate water supply sources. In September 2022, the Pleasanton City Council directed City staff to suspend the evaluation of the PFAS Treatment and Wells Rehabilitation Project in order to evaluate water supply alternatives that could replace the water previously supplied by the City’s existing groundwater wells. The City has effectively abandoned efforts to remediate wells due to PFAS contamination, and instead considered other alternatives: “two alternatives involved water treatment solutions and one examined the purchase of water from Zone 7 to meet all City drinking water needs. The final option was the construction of two new groundwater wells located within the Bernal subbasin in an area located outside of the influence of 104 California Water Boards, California PFAS Investigation Site Map, 105 DEIR, Appendix A: EIR Noticing and Public Involvement, pdf p. 59 of 208. 106 https://www.paloaltoonline.com/media/reports_pdf/1687827492.pdf. 107 Id.