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MAR 11 2002 2: SOPM TOSCO MARKETING 9167793044 p. 1 <br /> IE rNVIRONMENTAL HEALTH DEPARTMENT <br /> qui~ SAN JOAQUIN COUNT' Unlrsu mon <br /> mita K.Hcreu,RXII S <br /> Director 304 Fast Weber Avenue, Third Floor Csrl Buri.RE H S <br /> Al Olsea,P-L.$S Stockton, California 95202-2708 lDau jas W Wilco ILS,R D I <br /> Douglas W Wilson,RE H S <br /> tr �� Program Manager Telephone (209)468-3420 Margaret Lagono,R.E H S <br /> LA We A.CotuU RE-11 S <br /> Program Manager Fax. (209)464-0138 Robert McClellon.R.E H S <br /> Mark Baroellos.R.E H S <br /> EDWMD RALSTON <br /> TOSCC MARKETING COMPANY <br /> 1380 LEAD HILL RD STE 120 <br /> ROS LLE CA 95661 <br /> RE. TOSCO-Service Station #1205 SITE CODE. 507198 <br /> 16M-Cerci b-Wg a St <br /> Lathrop, CA., 95330 <br /> WORKPLAN: `Additional Off-Site Assessments' <br /> DATED- February 27, 2002. <br /> PREP REQ BY. Secor— Rusty Benkosky, P.E. <br /> STA S: APPRgVED twlth conditions noted below) <br /> ADE ATE AND NECESSARY LEMENTS OFT E WORK PLAN [H&S <br /> 25299 37 'subd c 3 <br /> • in all five to ten (5-10) offsite Geoprobes to north,east, and west in two <br /> ph ses to determine lateral extent of groundwater petroleum plume and, <br /> • In tall three to five (34) shallow groundwater monitoring wells offsite in <br /> a s of concern as determined by Geoprobe phase and, <br /> • lyze selected soil and all groundwater samples for TPH as gasoline, <br /> B , 1,2-DCA, EDB, MTBE and the Oxygenates on five-day turn-around <br /> ti a and submit report of findings to EHD. <br /> com ENTS AND CONDITIONS <br /> • lyze a representative groundwater sample for Total Lead by EPA <br /> JRort <br /> 0 and Methanol by EPA SID15m and, <br /> • of findings due at EHD within ninety(90) days of last phase <br /> nitoring well installation), <br /> • mit copies of City of Lathrop encroachment permits and EHD well <br /> ine tallation permit applications and fees befall April 12,.2002. <br /> REAS 3NS EOR DI PPROVAL OF THE WORK PLAN fH&S 25299-37 <br /> - <br /> • Ne no , <br /> DATE]: March-7. 2002. BY-- Ida Xf <br /> Michael In a, 26nior RMS 209 46"454 <br /> [X] F xed to consultant on: <br />