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San Joaquin County <br /> °WN l Health Department DIRECTOR <br /> °P. C Environmental p Donna Heran,REHS <br /> z: 2 1868 East Hazelton Avenue <br /> ia 95205-6232 <br /> Stockton, CdllfOrnPROGRAM COORDINATORS <br /> Robert McClellon,REHS <br /> Jeff Carruesco,REHS,RDI <br /> Kasey Foley,REHS <br /> r.. P s Website: www. ov.or ehd <br /> 19 9� Linda.Turkatte,REHS <br /> ciFoa� Phone: (209)468-3420 Rodney Estrada,REHS <br /> Fax: (209) 464-0138 Adrienne Ellsaesser,REHS <br /> December 1, 2014 <br /> Mcllrath Family LTD, PTP <br /> 4075 E. Main Street <br /> Stockton, CA 952120 <br /> Subject: Jamar Service <br /> 4075 E. Main Street <br /> Stockton, CA 95212 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Work Plan <br /> For Additional Site Assessment Activities (WP), dated 04 November 2014, prepared and <br /> submitted by your consulting firm, Cardno ATC Consulting Services Inc. (ATC), on your <br /> behalf for the above-referenced site. The EHD had directed the submittal of a work plan for <br /> further assessment by letter dated 21 July 2014. <br /> In the WP, ATC has proposed the following: <br /> Obtaining the required permits from the EHD for the proposed deep borings and any <br /> subsequent monitoring wells, encroachment permits from the City of Stockton, and <br /> access agreements with private property owners for proposed borings to be advanced <br /> off-site. <br /> Drilling and collecting soil samples for laboratory analysis by advancing three off-site <br /> deep soil borings. The borings will be advanced to an estimated depth of 105 feet <br /> below surface grade (bsg), using a direct push cone penetrating test (CPT) rig, <br /> analyzing the soil behavior from five feet bsg to the total depth achieved. Groundwater <br /> samples are to be collected from boreholes advanced adjacent to the CPT borings <br /> using a modified hydropunch sampler. <br /> Analysis of groundwater samples for the following constituents: total petroleum <br /> hydrocarbons as gasoline (TPH-g) by EPA Method 8015, benzene, toluene, <br /> ethylbenzene and total xylenes (BTEX), and fuel oxygenates by EPA Method 8260B. <br /> Installation of up to nine groundwater monitoring wells with completions in the A, B or <br /> C water bearing zones to delineate the lateral and vertical extent of dissolved-phased <br /> petroleum hydrocarbons. Installation of the groundwater monitoring wells is dependent <br /> on the results of grab groundwater sample analyses obtained. All analytical data will <br /> be submitted to the EHD and reviewed to determine if installation of groundwater <br /> monitor wells are justified and necessary. <br /> Obtaining the required EHD permits and encroachment permits and/or access <br /> agreements for all approved off-site monitoring wells. <br />