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r:rsv-�.s-:-rr.-.. - - ::-:>_._-" -:..-: -rrrn- � -_: •..f>xr.. _....._......r...3�.7:r..MY =:::w=�_.:.____�"w3.1� """ <br /> San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran,REHS <br /> 1868 East Hazelton Avenue <br /> PROGRAM COORDINATORS <br /> Stockton, California 95205-6232 Robert McClellon, REHS <br /> •' Jeff Carruesco,REHS,RDI <br /> Kase�'q ...•-•;.�;:P Website: www.sjgov.org/ehd Linda Foley,RENS <br /> Linda Turkatte, REHS <br /> Phone: (209)4663420 Rodney Estrada,REHS <br /> Fax: (209)464-0138 Adrienne Ellsaesser,REHS <br /> March 29, 2013 <br /> Mr. Den and Ms. Betty Ueda <br /> 626 East Galin Road <br /> French Camp, California 95231 <br /> Subject: Den's Auto Repair <br /> 308 South EI Dorado Street <br /> Stockton, California 95203-3404 <br /> Dear Mr. and Ms. Ueda: <br /> The San Joaquin County Environmental.Health Department (EHD).has received a No Further <br /> Action Required Concurrence letter from the Central Valley Regional Water Quality Control <br /> Board (CVRWQCB), dated 22 March 2013, for the above-referenced site. It is now necessary <br /> to plan and execute the destruction of all. wells installed as part of your site investigation and <br /> remedial action, as the EHD will not issue a Case Closure Letter for this site until the wells have <br /> been. properly destroyed and all onsite waste material has been removed- and properly <br /> disposed. The wells are to be destroyed within 90 days of the date of this letter, or current <br /> analytical data for groundwater collected quarterly from the wells shall be submitted for review <br /> until the wells have been properly destroyed. <br /> Please submit a scope of work proposal that details the conditions and construction of the wells <br /> and the methods and materials to be used to destroy them. To be issued a well destruction <br /> permit, the proposal must address the concerns.of the EHD and the San Joaquin County Well <br /> Standards requirements, such as: <br /> • Wells that have laboratory data from the last sampling event that demonstrate the <br /> presence of any contaminants of concern are to be destroyed by removing all the <br /> contents of the well (conductor casing, well casing, screen, filter pack, grout sealant); the <br /> cleared borehole is then to be sealed with neat cement by pressure grouting from the <br /> bottom upward to a depth of three to five feet below grade. <br /> • All wells with unknown construction and/or located in an area of known or suspected <br /> area of contamination are to be destroyed by removing all the contents of the well <br /> (conductor casing, well casing, screen, filter pack, grout sealant); the cleared borehole is <br /> then to be sealed with neat cement by pressure grouting from the bottom upward to a <br /> depth of three to five feet below grade. <br /> • Wells that have laboratory data from the last sampling event that report non-detectable <br /> concentrations of contaminants of concern and with acceptable laboratory detection <br />