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ENVIRONMENTAL HEALTH DEPARTMENT <br /> � o� SAN JOAQUIN COUNTY <br /> Donna K Heran, R>EJ'H S Unit Supervisors <br /> sx f F Director 304 East Weber Avenue,Third Floor Carl Borgman,R E H S <br /> Al Olsen, R E H S Stockton,California 95202-2708 Mike Huggins, R E H S, R D I <br /> • �R`! a�P Program ManagerTelephone (209)468-3420 Douglas W Wilson, R E H S <br /> > o Laurie A Cotulla, R E H S Margaret L,agorio,R E H S <br /> Program Manager Fax (209) 464-0138 Robert McClellon,R E H S <br /> Website www sjgov org/ehd/ Jeff Carruesco, R E H S <br /> AUG 0 8 2005 <br /> KYLE CHRISTIE DICK MATHEWSILIZ SEWELL <br /> BP CIO ATLANTIC RICHFIELD CO TOSCO CIO CONOCO PHILLIPS <br /> 6 CENTERPOINTE DR ROOM 161 76 BROADWAY <br /> LA PALMA CA 90623-1066 SACRAMENTO CA 95818 <br /> RE FORMER MOBIL Site Lode 18971 <br /> 2375 TRACY BLVD <br /> WORK PLAN Additional Soil and Groundwater Assessment <br /> DATED July 12, 2005 <br /> PREPARED BY URS <br /> APPROVED [X] <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&S 25296 10 (c)(3)] <br /> 1 To drill two borings and install one deep and one shallow and deep (nested) Monitoring Wells <br /> (MW)to define the vertical extent of sod and groundwater contamination on-site near the <br /> former/existing USTs and the vertical and lateral extent off-site and down gradient of MW-7 <br /> 2 To collect soil samples from the borings and analyze selected samples for TPH-gas, BTEX, <br /> fuel oxygenates including MTBE and 1,2-DCA <br /> 3 To sample groundwater from the MWs after installation and development <br /> 4 To analyze groundwater for TPH-gas, BTEX, fuel oxygenates including MTBE and 1,2-DCA <br /> 5 To prepare and submit a report of findings with conclusions and recommendations to EHD <br /> and CVRWQCB <br /> COMMENTS AND CONDITIONS <br /> 1 All required permits must be procured prior to beginning work <br /> 2 The report of finding must be prepared and submitted to EHD and CVRWQCB by November <br /> 15, 2005 <br /> 3 Prepare and submit a sensitive receptor survey by September 1, 2005 <br /> DATED �JP� BYIYIt/L <br /> Harlin Knoll,Senior REHS (209)468-3442 <br /> i c URS <br /> Save Mart Supermarket <br /> SMS Management—Antoinette Tull-McCoy <br />