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I� <br /> EPA method 3550/8015 (TPH-diesel) <br /> i EPA method 5530/8015 (TPH-gasoline) j <br /># EPA method 8020 (BTEX& MTBE) <br /> F# <br /> In addition, the domestic well that is located within the dispenser excavation will be surveyed to <br /> determine the depth to groundwater and the depth to the bottom o0the well, and a downhole TV <br /> camera will be used to inspect the well casing to determine the most appropriate method of <br /> abandoning the weII. Prior to destruction, Upgradient may decide to purge the well and collect a <br /> water sample for analysis; this will depend on the results of the drilling. i <br /> 3.0 PROCEDURES <br /> 1)Notify San Joaquin EHD at least 48 hours prior to field work <br /> 2)Drill one vertical boring within the dispenser excavation using�a hollow-stem auger drilling rig. <br /> Terminate the boring at the groundwater interface or when no hydrocarbon contamination is <br /> evident, whichever is shallower. E <br /> 3) Collect discrete soil samples at 5-foot intervals,using a California modified split-spoon sampler <br /> I` loaded with three 6" brass sample sleeves. p <br /> 4)Preserve the bottom sleeve by covering the ends with aluminum foil.or Teflon sheets, capping, and <br /> sealing with duct tape. Place samples in a cooled ice chest. s <br /> �I <br /> 5) Screen the middle sample for the presence of organic vapors using a:portable photo-ionization <br /> detector(PID) and record the measurement on the boring log. :t 1 <br /> {r. <br /> 6)Extrude the middle and upper sleeves and record the sample descriptions on the boring log in ! <br /> accordance with the Unified Soil Classification System. <br /> 7)Decontaminate the sampling equipment between samples. <br /> 8)Place auger returns on plastic sheeting pending laboratory analysis. f <br /> h lin device to collect a groundwater sample. <br /> 9)If groundwater is encountered, use a hydropunc sampling ,! gr p <br /> Place sample in sterilized 40-m1 vials and 1-liter amber bottles and store in ice chest. <br /> o measure the groundwater in th' boring(s) and domestic well <br /> 14)Use a water level meter t depth p to gr F� ,! g{s) <br /> and the total depth of the domestic well. <br /> F� <br /> 11)Backfill the boring with cement grout from total depth to su}face. <br /> 1 <br /> f <br />