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San Joaquin County <br /> QUI(y DIRECTOR Environmental Health Department <br /> �oP co Donna Heran,REHS <br /> .2 1666 East Hazelton Avenue <br /> Q �° �' `';� PROGRAM COORDINATORS <br /> N Stockton, California 95205-6232 <br /> a .. Robert McClellon,REHS <br /> Jeff Carruesco,REHS,RDI <br /> Kasey.Foley,REHS <br /> Website: wvwv.sjgov.org/ehd <br /> Linda Turl<atte,REHS <br /> Phone: (209)468-3420 <br /> Fax: (209)464-0138 <br /> May 6, 2014 <br /> Mr. Marvin Katz <br /> Shell Oil Products US <br /> HSE Environmental Services <br /> 20945 South Wilmington Avenue <br /> Carson, California 9081 0-1 039 <br /> Subject: Interstate Shell <br /> : <br /> 620 West Charter Way MAY 5 2014 <br /> Stockton, California 95206 <br /> Dear Mr. Katz: <br /> The San Joaquin County Environmental Health Department (EHD) has received and <br /> reviewed Well Destruction Work Plan (work plan), dated 18 April 2014, prepared and r <br /> submitted by your consulting firm, Conestoga-Rovers & Associates (CRA), on your behalf <br /> for the above-referenced site. The work plan was submitted in response to the EHD letter . <br /> dated 03 April 2014 directing a well destruction work plan be submitted to this agency. <br /> In the work plan, CRA proposes to destroy monitoring wells MW-2, MW-3, MW-4, MW-5, <br /> MW-7, MW-8, MW-9, MW-13-50, MW-14-77, MW-16-50, MW-16-77, MW-16-90 and <br /> MW-17-50 by over-drilling; and MW-1, MW-6, MW-10, MW-11, MW-13-77, MW-14-50, and <br /> MW-15-77 by pressure grouting. CRA proposes to store groundwater and drill cuttings <br /> generated during the well destructions in a covered bin or fifty-five-gallon drums. prior,to <br /> disposal profiling and transporting the waste to an appropriate disposal facility. <br /> The EHD approves the work plan with the following conditions. <br /> Over-drill monitoring well MW-13-77 instead of pressure grouting this well since <br /> contaminants of concern were detebted in soil samples collected at forty-five feet <br /> below surface grade (bsg) during the well installation and pass through the <br /> groundwater interval monitored by MW-13-50, which contains minor benzene; <br /> Use only potable water to make the grout; displaced groundwater may not be used <br /> to make grout or for any other purpose and must be disposed of properly; <br /> a Notify the EHD at least two weeks prior to implementing fieldwork activities so that <br /> an Jnspector can schedule to be present for the well destructions; and <br /> o Include the signed and dated manifests of soil and groundwater waste removal <br /> when submitting the final well destruction report, <br />