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' Phase H Site Assessment Workplan/Health and Safety Plan October 1996 <br /> for the Lodi RaillMultimodal Station Project No. E168-1 <br /> ' from borings showing contamination will be characterized and disposed of appropriately. <br /> The backhoe bucket and augers will be rinsed with a steam cleaner and/or TSP solution after <br /> ' completion of each trench or boring. Rinse water will be contained and transferred to a <br /> plastic 55-gallon drum for further characterization and disposal if necessary. Rinse water <br /> drums will be stored at a remote portion of the site. <br /> ' <br /> Sampling <br /> p g <br /> Soil samples will be obtained using a driven California split-spoon sampler lined with 2-inch <br /> diameter by 6-inch long steel or brass tubes. Soil samples for laboratory analysis will be <br /> collected by advancing the boring to the desired sampling depth, removing the auger plug, <br /> and lowering the sampler through the auger. The sampler will then be driven below the auger <br /> tip (a total of 12 inches minimum) using a hydraulic driven 140-pound hammer. The <br /> lowermost (lead) tube will be immediately removed from the sampling device, capped with <br /> ' teflon tape and plastic end caps, then taped and sealed. The sample will be labeled, logged <br /> on a chain-of-custody/sample management form, and placed in a iced cooler kept at a <br /> temperature of approximately VC until delivered or picked-up by the laboratory for analyses. <br /> ' if it appears necessary to collect soil samples from backhoe trenches, samples will be <br /> collected using a hand-held slide hammer fitted with a split spoon sampler fitted with 2-inch <br /> ' diameter by 6-inch long steel liners. <br /> Sampling devices will be washed with a TSP or Alconox solution and rinsed in deionized <br /> ' water following each sampling event. Rinse water will be contained and transferred to a <br /> plastic 55-gallon drum for further characterization and disposal if necessary. Rinse water <br /> drums will be stored at a remote portion of the site. <br /> ' Laboratory Analyses <br /> Since the type(s) of contamination that may be present are generally unknown at this time, <br /> type of analysis will be determined following exploration. Considering that fuels, oils, and <br /> or solvents are anticipated analyses would include: total petroleum hydrocarbons for gas <br /> ' (EPA8020), total petroleum hydrocarbons for diesel and motor oils (mod. EPA8015), and <br /> halogenated hydrocarbons (EPA8010), Cam 8 metals (EPA 6010, Total Threshold Limit <br /> Concentrations). A two week sample turn-around time is standard. <br /> 1 <br /> 1 <br /> ' 4 <br /> ' kV ESPANA GEOTECHNICAL CONSULTING <br />