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06/19/2603 08 29 2094683433 FIFTH FLOOR PAGE 02 <br /> ENVIRONMENTAL HEALTH DEPARTMENT <br /> ogQu�k <br /> SAN JOAQUIN COUNTY <br /> ` flrur Su rvraorc <br /> Donna K ticrart,RE ELS Pe <br /> { Dwactor 304 East Weber Avenue, Third Floor Carl Bo[gman,It E H 5 <br /> • Al Olsen,RE.H S Stockton, California 95202-270$ Mtkc Huggms,R.E IT S,R D I <br /> �y ,P Program Manager Douglas W Wilton,RE H S <br /> Laurie A.Cotalla,ILE H.S TClephorte (209) 465-342b Margaret Lagonu,R E H S <br /> Program Manager Fax (209)464-0138 Robert MCClellpn,R E H S <br /> Mark Bamello> ,It E H S <br /> JOSE H GARCIA <br /> 521 N_ CHEROXEE LAZA <br /> LODI CA 95240 <br /> R£: 521 N- Cherokee Lana site Code: 1324 <br /> WORK PLAN Expanded Work Plan to Complete soil and Ground water Investigation <br /> DATED April 20, 2003 <br /> PREPARED PY� Stephen G Muir <br /> APPROVED (X] <br /> ADEQUATE AbM NECESSARY ELEMINTS OF THE WORK ?LAN [H&S 25299 37 (c) (3)3 <br /> 1 To complete 7 monitoring wells (MWs) and 3 soil borings to determine <br /> the lateral extent of soil and ground water contamination <br /> 2 To collect soil samples every 5 feet from all borings To select <br /> appropriate samples for analyses TPH-gag, HTDX, fuel oxyganatee <br />• (including 1,2-DCA) and lead <br /> 3 To develop all MWs prior to groundwater sampling <br /> 4 To collect groundwater samples, on a Quarterly basis, for analyses of <br /> the above gasoline constituents Quarterly reporting is also <br /> required until site closure is granted <br /> 5 To conduct a well receptor survey within a 2000 foot radius of the <br /> site <br /> 5 To develop a Site conceptual Model using site specific information <br /> '7 To prepare a Preliminary Problem Assessment Report and submit it to <br /> MiD and CVRWQCB for review and comment <br /> 8 To develop a Work Plan (WP) for feasibility testing <br /> 9 To enter the site information Into SWRCS Geo Tracker data base using <br /> EDF" <br /> COMMENTS AND CONDITIONS <br /> 1 The total depth of 60 feet bgs proposed for MWs construction is <br /> approved, but the well screens should be limited to no more than 20 <br /> feet <br /> 2 A WP to vertically define the extent of soil, and ground water <br /> contamination will be required and one continuous core soil boring, <br /> at a minimum, will be required in the source area <br /> 3 All necessary access agreements and permits must be procured prior to <br /> beginning work An EHa well permit application and fees must be <br /> submitted to FIM for review and permit issuance When an approved <br /> Permit is issued, drx1ling inspections Can be scheduled with EHD <br /> -7/a I gy kA�-� I <br />. Harlin Knoll RENS(209)468.3442 <br />