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F-� mm,.,_ <br /> Water Boards °INS=-°-� <br /> Central Valley Regional Water Quality Control Board <br /> Chevron Environmental Management Camps" 6 January 2022 <br /> do Siobhan Pritcharl <br /> Arcades U.S., Inc. <br /> 630 Plaza Crude, Suite 200 <br /> Highlands Ranch, CO 80129 <br /> REVIEW OF ACTION PLAN MEMORANDUM, 401 NORTH SAN JOSE STREET, <br /> STOCKTON SAN JOAQUIN COUNTY <br /> Central Valley Regional Water Quality Control Board (Central Valley Water Board) send <br /> reviewed the 29 December 2021 Action Plan memorandum (Action Plan) prepared by <br /> Parents, U.S. Inc. (Arcades) on behaff of Chevron Environmental Management Company <br /> (CEMC) for 401 North San Jose Street in Stackton (Site). CEMC submitted the Action Plan <br /> pursuant to are Central Valley Water Board staff 8 November 2021 letter. The purpose of <br /> the Action Plan is to reassess the path to closure due to sail vapor confirmation samples <br /> that exceeded commercial add residential screening levels following soil excavation. <br /> CEMC will re-engage the property owner for 401 North San Jose Street regarding a <br /> passible land use Covenant that would limit future development at the property. Based on <br /> the outcome of discussions with the property caner, Arcades may propose additional <br /> me ination that could Include a multiphase extraction event to decrease soil vapor <br /> cencentrations. CEMC and Arcane propose to submit a plan for additional remetliation <br /> following Me discussions. <br /> Central Valley Water Board slad concurs Dart the work proposed in the Action Plan. <br /> Therefore, please submit the proposed plan for additional remetliation by 25 February 2022. <br /> Feel free to conduct me with any questions or concerns regarding puts letter at (916) 464- <br /> 4622 or Bill BmUainei wathumards.ca.gov. <br /> William Brennan, P.E. e..: <br /> Water Resonance Control Engineer <br /> AWL <br /> Private Sites Cleanup Unit <br /> ei Shelton, P.E. <br /> Senior Water Resource Control Engineer <br /> Private Sites Cleanup Unit <br /> cc Michael Nations, Chevron Environmental Management Company, San Ramon <br /> Austrian Lehman, Arradis U.S., Inc., Concord <br /> DENISE KAMP*. ACTING NAM In <br />