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• <br /> Work Plan For Remedial Approach and Well Installation 9 <br /> Ranch Market Site,23569 South Santa Fe Road,Riverbank,California May 2 2002 <br /> Permitting <br /> Well Installation Permits <br /> Well installation permits for on-and-offsite wells will be obtained from the San Joaquin County <br /> Environmental Health Department (SJCEHD). Well permits will be obtained prior to <br /> installation of the wells. <br /> Soil Borings, Soil Sampling and Analysis <br /> SECOR will supervise the drilling of 27 soil borings at the locations shown on Figure 3 of 8, <br /> Attachment 1, using a truck-mounted drilling rig equipped with 8-inch-diameter hollow-stem <br /> augers. Borings V-7 through V-10 will be drilled to a depth of approximately 30 feet below <br /> ground surface (bgs) to accommodate SVE well installation. Wells S-1 through S-23 will be <br /> drilled to a depth of approximately 38 feet bgs (Table 1, Attachment 3). Soil samples will be <br /> collected using a split spoon sampler lined with 2-inch diameter by 6-inch-long brass sample <br /> tubes at the depths shown in Table 2, Attachment 3. Downhole drilling equipment will be <br /> steam cleaned before drilling each borehole, and sampling equipment will be cleaned between <br /> each sampling interval. Each soil sample will be screened for hydrocarbon vapors using a <br /> portable photoionization detector(PID). Soils encountered during drilling will be logged using <br /> the Unified Soil Classification System by a SECOR field geologist, working under the <br /> supervision of a California registered geologist. <br /> All soil generated through drilling will be placed in Department-of-Transportation (DOT) <br /> approved 55-gallon drums on site pending characterization and disposal. Water generated by <br /> steam cleaning will be contained in a steam-clean trailer and temporarily stored on site in DOT <br /> approved 55-gallon drums. <br /> All soil samples collected for analyses will be sealed with teflon pads and plastic caps, then <br /> labeled and placed on ice in an insulated container for delivery to Mff Analytical located in <br /> Davis, California. Referring to Table 2, Attachment 3, select soil samples will be analyzed for <br /> BTEX, TPHg, and MtBE using EPA method 8260B. <br /> Well Installation and Well Development <br /> Vapor Extraction Wells <br /> Wells V-7 through V-10 will be constructed as SVE wells using 2-inch diameter polyvinyl <br /> F&e R.h Mar a-Rivertnnk\WorkplaosVaeoch�-Ra S,.,. <br />