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PUBLIC HPALTH SERVICES <br /> SAN JOAQUIN COUNTY ¢,' <br /> ENVIRONMENTAL HEALTH DIVISION ": < <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> r . P <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 <br /> PAUL SUPPLE <br /> ARCO PRODUCTS COMPANY <br /> P O BOX 6549 <br /> MORAGA CA 95470 <br /> RE: ARCO Station#4932 Site Code: k 1136 <br /> 16 E.Harding Way <br /> Stockton CA 95204 <br /> WORKPLAN: Work Plan for Interim Remediation/Feasibility Testing <br /> DATED: December 14,2000 <br /> PREPARED BY: SECOR International Incorporated <br /> APPROVED: [x] <br /> DROVED: LL 11 <br /> AADDENDUMNEEDED: Submit by <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN[H&S 25299.37,subd(c)(3)]: <br /> 1.Five-day interim remediation/feasibility test using a dual phase (soil vapor and ground water) extraction system. <br /> 2.The test will be conducted using site wells SVE-1 and MW-4(not MW-3 as stated in the work plan). <br /> 3. Extracted soil vapors will be treated with an thermal oxidizer unit under permit from the San Joaquin Valley Air <br /> Pollution Control District. Air samples will be collected periodically for analysis of TPHg(EPA Method 8015m), <br /> BTEX(EPA Method 8020) and fuel oxygenates(EPA Method 8260) at a CA State Certified Laboratory. <br /> 4. Extracted liquids will be contained in a Baker Tank pending characterization and disposal at an approved facility. <br /> 5. A report of findings will be prepared and submitted to PHS/EHD within eight weeks after completion of the test. <br /> 6. Site specific Health and SaferyPlan was included in the work plan. <br /> COMMENTS AND CONDITIONS: <br /> 1. Fortyxeight hours notice to PHS/EHD is required prior to initiating fieldwork <br /> . FILE COPY <br /> DATED 2 i 100 BY ECCl <br /> Lori Duncan,Senior REHS (209)468-0337 <br /> CC: Marty Hartzell.CVRWQCB <br /> R=yBenkosky,SECOR <br /> A Division of San Joaquin County Health Care Services <br />