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Pacific Gas & Electric Company <br /> Pag4%.11 <br /> StocktService Cente <br /> Stockton , California <br /> chain-of-custody procedures will be followed . The split-barrel <br /> sampler will be cleaned using a hot water ( steam) washer between <br /> sampling intervals to minimize the potential for cross <br /> - <br /> contamination . The lead auger and associated drilling equipment <br /> will be cleaned using the hot water ( steam) washer between <br /> r borings . All field work associated with the collection of soil <br /> ' samples from the project site will be supervised by an engineer <br /> r^ <br /> from our firm. <br /> I <br /> Each soil sample retained for laboratory analysis will be <br /> t^ <br /> analyzed for the presence and concentration of Total Volatile <br /> r- Organic Hydrocarbons , and oil and grease content using the <br /> following test methods . <br /> Constituent Test Methods <br /> r Total Volatile Organic <br /> Hydrocarbons SW-846 : Methods 5020 , 8015 <br /> ,.. Oil and Grease Method 503D , "Standard Methods <br /> for the Analysis of Water and <br /> Wastewater" . <br /> r-- <br /> Since the concentrations of PCBs detected in the original <br /> r soil samples taken at the site ranged from non-detected to 1 . 0 <br /> part per million ( ppm) , the soil samples obtained during this <br /> investigation will not be analyzed for PCBs . <br /> At the completion of the project , an enginerering report <br /> presenting the scope of services provided and the results of the <br /> chemical analysis of the soil samples will be prepared . <br /> r^ Fresno Modesto Visalia Bakersfield <br />