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✓ SW/ <br /> San Joaquin County <br /> oP°'"'" • Environmental Health Department DIRECTOR <br /> �•-•_�f• .p � Donna Heran, REHS <br /> 1868 East Hazelton Avenue <br /> PROGRAM COORDINATORS <br /> Stockton, California 95205-6232 <br /> � Robert McClellon,RENS <br /> .- Jeff Carruesco,REHS,RDI <br /> • � ! <br /> Website: www.sjgov.org/ehd Kasey Foley,REHSLindaTurkatte,REHS <br /> Phone: (209)468-3420 Rodney Estrada,REHS <br /> Fax: (209)464-0138 Adrienne Ellsaesser,REHS <br /> May 30, 2013 <br /> Mr. Wesley Parkinson <br /> Parkinson's 1-5 ARCO Service Station <br /> 3250 West Hammer Lane <br /> Stockton, California 95209 <br /> Subject: Parkinson's 1-5 ARCO Service Station LOP Case No.: 0002224 <br /> 3250 West Hammer Lane <br /> Stockton, California 95209 <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 May 2013 for the above-referenced site. It is now necessary to <br /> plan and execute the destruction of all wells installed as part of your site investigation and <br /> remedial action, as the EHD can not issue a Case Closure Letter for this site until the wells <br /> have 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); <br /> the cleared borehole is then to be sealed with neat cement by pressure grouting from <br /> the 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 <br /> is 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 />