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( <br /> 1 � <br /> San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> —�� Donna Heran,REHS <br /> -` 1868 East Hazelton Avenue <br /> r Stockton, California 95205-6232 PROGRAM COORDINATORS <br /> Robert McClellan,REHS <br /> !•' - Jeff Carruesco,RENS,RDI <br /> Website: www.sjgov.org/ehd Kasey Foley,REHS <br /> Phone: (209)468.3420 Linda Turkatte,REHS <br /> Rodney Estrada,REHS <br /> Fax: (209)464-0138 Adrienne Ellsaesser,REHS <br /> October 30, 2014 <br /> Ken Gillies <br /> Gillies Trucking <br /> P O Box 8303 <br /> Stockton, CA 95208 <br /> Subject: Work Plan Approval <br /> Gillies Trucking LOP Site Code: 1703 <br /> 3931 Newton Road <br /> Stockton, CA 95205 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Revised Letter <br /> Workplan for Select Groundwater Monitoring and Limited Soil Investigation Gillies Trucking Site, <br /> 3931 Newton Road, Stockton (WP), dated 02 October 2014, prepared and submitted by Stephen G. <br /> Muir Consulting Geologist & Geophysicist (Muir) on your behalf. In WP, Muir recounted the site <br /> history and provided a justification for the proposed corrective actions: sampling selected monitoring <br /> wells for current dissolved total petroleum hydrocarbons quantified as diesel (TPHd) to assess wells <br /> that might be destroyed by pressure grouting and thereby reducing the well destruction costs, and <br /> to further assess the distribution of dissolved cadmium and zinc in groundwater and its possible <br /> association with the former waste oil underground storage tank (LIST). The status of the former <br /> waste oil UST is proposed to be further assessed by collection of soil samples beneath the former <br /> UST at 5 feet below ground surface (bsg) and 10 feet bsg from a boring advanced in the former pit <br /> location. The boring is proposed to be advanced by hand-auger. <br /> The soil samples are proposed for analysis for TPH as gasoline, TPHd, volatile organic compounds, <br /> semi-volatile organic compounds, oil & grease, polychlorinated biphenyls (PCBs), and the metals <br /> cadmium, chromium, lead, nickel and zinc. <br /> The EHD approves the proposed scope of work as necessary and adequate to address the <br /> comments and directive of the EHD letter dated 17 September 2014. The EHD recommends that <br /> care be taken to ensure that soil sampling points are both below the depth of the base of the <br /> former waste oil UST. If PCBs are detected in the soil samples they should be also analyzed for <br /> dioxins and furans by EPA Method 8290 and pesticides by EPA Method 8081A. Please notify the <br /> EHD at least 48 hours in advance of any field work for scheduling purposes. <br /> The EHD has not yet received certification from you that all Record Owners of Title Fee (RTO) had <br /> been notified of closure consideration for your site; California law prevents this office from closing <br /> your site without this certification. A form was enclosed with the 17 September 2014 closure <br /> response letter from the EHD and another is enclosed with this letter; please notify all fee owners of <br /> the pending closure consideration, complete the attached RTO form, and return it to the EHD at <br /> your earliest convenience. <br /> Work Plan Approval Letter 1014 <br />