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3. Sampling Plan <br /> This sampling plan is intended to document the procedural and analytical requirements for this <br /> and any subsequent sampling events performed to collect soil and waste samples and to <br /> characterize areas of potential contamination from the Sante Fe Road Disposal Site. This plan <br /> was compiled after reviewing the US Environmental Protection Agency's, Region 9, guidance <br /> document"Instructions for the One-time Sampling Event Sampling and Analysis Plan"dated <br /> March 1998. <br /> 3.1 . Sampling Methodology <br /> Discrete sampling will be used to assess the bum ash and surrounding soils. The sampling will <br /> be conducted by using either direct-push equipment or a tracked excavator to sample locations <br /> shown on Figure 3. Authoritative protocol may be used to allow the investigator the flexibility to <br /> move sampling locations, as necessary, to accommodate unforeseen field conditions. The <br /> following outline describes the proposed sampling: <br /> Direct push equipment will drive sampling tool down to approximately 25 feet (or <br /> until contact between waste and native is encountered) to characterize the cover <br /> thickness and waste thickness. Burn ash and soil samples will be cut from <br /> acetate tubing used to line the sampling tool and capped. A total of 50 waste/ash <br /> samples will be collected (two sample per location). One sample will be used as <br /> a discrete sample which will be analyzed for CAM 5 (lead, nickel, cadmium, <br /> chrome and zinc)the other sample used for compositing with others from a <br /> specified area. <br /> Areas will be defined for compositing samples for more extensive analysis. A <br /> total of 10 composite samples are proposed. <br /> Each direct-push sample or trench will be classified and logged by the Ninyo& Moore registered <br /> geologist and samples will be collected by visually identifying debris through the clear acetate <br /> liner of the sampling tool and then carefully cutting two 6-inch samples from the tube and <br /> capped. Once capped, the samples will be sealed, labeled and logged and packaged for <br /> shipping back to CIWMB laboratory contractor, ExcelChem. <br /> Reusable sampling equipment will be decontaminated between each sampling event by the <br /> CIWMB consultant or their subcontractor. Decontamination will follow the procedures outlined <br /> in Section 3.5 of this sampling plan. Personnel who collect samples will be required to change <br /> their gloves between each sampling event. <br /> 3.2. Sampling Equipment <br /> The following equipment will be necessary to perform the sampling <br /> • Direct Push Equipment • Field log book <br /> ■ Geoprobe Acetate Sampling Liners • Survey laths <br /> ■ GMI 422 Gas Surveyor Instrument ® First aid kit and eye wash <br /> CIWMB 15 <br />