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ATC Associates Inc. <br /> VATC <br /> 1117 Lone Palm Avenue,Suite B <br /> Modesto,California 95351 <br /> 209-579-2221 <br /> fax:209-579-2225 <br /> A S S O C I ATE i I N C. <br /> Sample Analyses <br /> The soil and groundwater samples collected from the Geoprobe soil borings will be immediately placed <br /> in a cooler with ice and delivered under chain-of-custody documentation to a State-certified analytical <br /> laboratory. Potential analyses of the soil samples include but are not limited to: benzene, toluene, <br /> ethylbenzene, xylenes (BTEX), and methyl tertiary butyl ether(MTBE) using United States Environmental <br /> Protection Agency (U.S. EPA) SW 846 Method 826013, and gasoline range organics and semi volatile <br /> hydrocarbons by U.S. EPA SW 846 Method 8015B. The grab groundwater samples collected from each of <br /> the six borings will be analyzed for VOCs using EPA Method 8260B (full scan). <br /> The shallow soil samples will be analyzed for chlorinated herbicides by EPA Method 8151A, <br /> organophosphorous pesticides by EPA Method 8141, and organochlorine pesticides by EPA Method <br /> 8081A. <br /> Report Preparation <br /> Upon completion of site activities, a summary report will be prepared for submittal to San Joaquin <br /> County Environmental Health Department (SJEHD), if requested. The report will include a description <br /> of field activities, laboratory analytical results, boring logs, and conclusions. All work described in this <br /> workplan will be performed under the direction of a California Registered Professional Engineer or <br /> Geologist. All work will be performed in accordance with ATC's site specific Health and Safety Plan <br /> (HASP) and Quality Control/Quality Assurance Plan included as Attachments 1 and 2. <br /> Projected Schedule <br /> Once approval of this workplan has been received, ATC will confirm a schedule for drilling activities. <br /> ATC will notify SJEHD at least 48 hours prior to beginning any field activities. <br /> If you have any questions or require additional information regarding this workplan, please contact us at <br /> (209) 579-2221. <br /> Respectfully submitted, S\pNAL CFO <br /> ATC Associates Inc. ��� l 0 <br /> a TODD C.HAFNER <br /> No.8090 <br /> Todd Hafner <br /> N Q- <br /> Professional Geologist No. 8090 OF <br /> CAL <br /> -- <br /> Jeanne Homsey, P.E. <br /> Registered Engineer No. C47410 <br /> Attachments <br /> s:\environmental\75112-Pilot\Roth Road\phasellwp.doc 3 <br />