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OMFP'! <br /> GAVIN NEWSOM <br /> GOVERNOR <br /> C aLIFo aNla JARrRE ED <br /> BRY MENFELD <br /> SETOR <br /> WaterBoards a ENVIRONMENTAL PROTECTION <br /> Central Valley Regional Water Quality Control Board <br /> 18 July 2022 <br /> Juan and Elia Ruvalcaba TR Mr. John M. Luebberke <br /> 1404 North Monroe Street City of Stockton <br /> Stockton, CA95203 425 North El Dorado Street <br /> Stockton, CA 95202 <br /> Mr. Michael Griffin <br /> St. John's Episcopal Church <br /> 316 North El Dorado Street <br /> Stockton, CA 95202 <br /> REVIEW OF WORKPLAN ADDITIONAL OFF-SITE GROUNDWATER <br /> INVESTIGATION, CANCUN RESTAURANT(T0607715874), 135 MINER AVENUE, <br /> STOCKTON, SAN JOAQUIN COUNTY <br /> Dear Mr. Ruvalcaba, Mr. Griffin, and Mr. Luebberke, <br /> Central Valley Regional Water Quality Control Board (Central Valley Water Board) staff <br /> reviewed the Workplan Additional Groundwater Investigation (Work Plan) dated <br /> 31 May 2022, submitted on your behalf by Frey Environmental, Inc. (Frey). The case is <br /> located at 135 Miner Avenue in Stockton (Site). <br /> In the Work Plan, Frey proposes to advance four off-site cone penetrometer (CPT) <br /> borings to approximately 100 feet below ground surface (ft bgs), install three shallow <br /> groundwater monitoring wells screened between approximately 15 and 35 ft bgs, and <br /> install one deeper screened groundwater monitoring well screened between <br /> approximately 55 and 60 ft bgs. <br /> Central Valley Water Board staff concurs with the scope of work presented in the Work <br /> Plan. By 15 December 2022, please submit a results report with conclusions and <br /> recommendations for the next step. <br /> MARK BRADFORD, CHAIR I PATRICK PULUPA, ESQ., EXECUTIVE OFFICER <br /> 11020 Sun Center Drive#200, Rancho Cordova, CA 95670 1 www.waterboards.ca.gov/centralvalley <br />