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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY , <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue,Third Floor • Stockton, CA 95202 �iFOR <br /> 209/468-3420 FILE <br /> C <br /> EDWARD RALSTON SCOTT T HOOTON <br /> TOSCO MARKETING COMPANY BP OIL COMPANY <br /> 1380 LEAD HILL RD STE 120 295 SW 41ST ST <br /> ROSEVILLE CA 95661 RENTON WA 98055 <br /> RE: TOSCO-BP Service Station #11192 SITE CODE: 1995123 <br /> 1403 Country Club Blvd. RO#:0000087 <br /> Stockton, CA., 95204 <br /> WORK PLAN: "Five (5) Day Dual Phase Extraction Event" <br /> DATED: October 29, 2001. <br /> PREPARED BY: Secor— Rusty Benkosky, P.E. <br /> STATUS: APPROVED (with conditions noted below) <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&S <br /> 25299.37,subd(c)(3)1: <br /> • Conduct soil vapor and groundwater extraction testing from existing <br /> monitoring wells onsite for field data to support remedial feasibility and, <br /> • Collect soil vapor samples during five day test and analyze for TPHg, <br /> BTEX, MtBE and other oxygenates, to include 1,2-DCA and, <br /> • Prepare report of findings and submit to PHS-EHD. <br /> COMMENTS AND CONDITIONS: <br /> • Existing directives require report of findings due at PHS-EHD within 45 <br /> days of end of test/drill/well installations and, <br /> • Only EPA Method 82608 (NOT 8020) allowed for MtBE analysis. <br /> REASONS FOR DISAPPROVAL OF THE WORK PLAN [H&S <br /> 25299.37,subd(c)(3)]: <br /> • None �,/ <br /> November 28 —'`?v� <br /> 9 <br /> DATED. No , 2001. BY: <br /> Michael In rna, Se or REHS (209) 468-3454 <br /> Faxed to consultants [ X <br /> A Division of San Joaquin County Health Care Services <br />