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! Pacific Gas S Electric Company Page 5 <br /> E i <br />� <br /> L <br /> Stockton Service Center Stockton, California <br /> chain-of-custody proceee <br /> durs will bfollowed . The split-barrel' <br /> I L i <br /> sampler will be cleaned using a hot water ( steam ) washer between. <br /> sampling intervaIs , to minimize the potential for cross - <br /> I I� <br /> contamination . The lead auger and associated drilling equipment,; <br /> i #r: will be cleaned using the hot water,; ( steam) washer between' <br /> j <br /> borings . All field work associated with the collection of soil` <br /> L !' <br />{ ` samples from the project site will be supervised by an engineer <br /> from our firm. <br /> Each soil sample retained for laboratory analysis will be <br /> Lanalyzed for the presence and concentration of Total Volatile, <br /> I <br /> Organic Hydrocarbons , and oil and grease content using the. <br /> L 1i <br /> following test methods . I} <br /> Constituent iI Test Methods <br />! Total Volatile Organic I <br /> L Hydrocarbons SW-846 : Methods 5020 , 8015 <br /> Oil and Grease Method 503D , "Standard Methods <br /> Lfor the Analysis of Water and <br /> Wastewater" . <br /> LI Since the concentrations of PCBs Idetected in the original <br /> fsoil samples taken at the site ranged from non-detected to 1 . 0. <br /> L <br /> part per million ( ppm) , the soil samples obtained during this, <br />� If <br /> L investigation will not be analyzed for PCBs . <br /> * At the completion of the projectan enginerering report„ <br /> Il <br /> # presenting the scope of services provided and the results of the <br /> I <br /> chemical analysis of the soil samples will be prepared . <br /> L <br /> a ,� 07107 to �. P,�. <br /> Fresno Modesto Visalia Bakersfield <br /> t 1 <br />