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330 South Cherokee Lane TLP 3794-445 <br /> December 1, 1994 Page 3 <br /> Drilling activities will be supervised by a Twining geologist. The Twining geologist will be <br /> working under the professional supervision of a California registered geologist. <br /> Task 3 — Laboratory Analysis <br /> Soil samples collected during this investigation will be submitted to Twining's California—certified <br /> laboratory (Certificate No. 1371) in Fresno, California. Proper chain—of—custody and quality <br /> .a<• ed(t1itI+control procedures will be followed. <br /> Selected soil samples will be analyzed for TPH—G and.TPH-D by gas chromatographgMarne Y <br /> ionization detection. Soil samples analyzed for TPH—G and TPH—D will be prepared by United <br /> States Environmental Protection Agency (U.S. EPA) method 5030. Selected soil samples will <br /> also be analyzed for BTEX according to U.S. EPA method 8020 and prepared by U.S. EPA <br /> method 5030. <br /> Based on the premise that soil samples will be collected from nine soil borings,Twining estimates <br /> that four soil samples will be analyzed for TPH—G and BTEX, two soil samples analyzed for <br /> TPH—D, and 12 soil samples analyzed for TPH—D, TPH—G, and BTEX. <br /> Task 4 — Report Preparation <br /> Twining will prepare a report documenting and describing activities performed. Subsequent <br /> reports will present new data and incorporate previous data. <br /> The report will include an executive summary of investigation activities and results, site location <br /> map, site plan showing soil boring locations, boring logs, stratigraphic cross—sections (if <br /> appropriate),and laboratory analytical reports with chains—of—custody documentation. The report <br /> will be completed within two weeks of receipt of analytical data. <br /> g :r be <br /> for`titisp 1TlI� IN11 � <br /> .:. <br /> n <br /> schedule for this project,and Table 3 contains a bid response form required for clients seeking <br /> reimbursement. Fees presented in Table 1 supersede any other fee schedules. <br /> Task 5 — Project Planning and Supervision <br /> Project planning and preparation will be conducted by the staff geologist under the direction of <br /> a California Registered Geologist. Time is included for possible meetings with the client and/or <br /> regulatory authorities. <br />