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ATTACHMENT B <br /> FIELD AND LABORATORY PROCEDURES <br /> Chevron Service Station 9-2033, 508 West Charter Way, Stockton, CA <br /> HEALTH AND SAFETY <br /> As required by the Occupational Health and Safety Administration (OSHA) Standard <br /> "Hazardous Waste Operations and Emergency Response" guidelines (29 CFR <br /> 1910 120), and by California Occupational Health and Safety Administration <br /> (Cal-OSHA) "Hazardous Waste Operations and Emergency Response" guidelines (CCR <br /> Title 8, Section 5192), SECOR will prepare a Site-Specific Health and Safety Plan for <br /> use during fieldwork The field staff and contractors will review the Site-Specific <br /> Health and Safety Plan before beginning field operations at the site <br /> EXPLORATORY DRILLING <br /> The soil borings will be drilled using an 8-inch hollow-stem auger drilling equipment to <br /> depths to be determined by field logs A SECOR representative using the Unified Soil <br /> Classification System and standard geologic techniques will log continuous samples <br /> from each boring Soil samples for logging will be collected continuously using either a <br /> 5-foot dry core or using a California-modified split-spoon sampler The sampler will be <br /> driven a maximum of 18 inches using a 140-pound hammer with a 30-inch drop All <br /> soil samples for chemical analysis will be retained in brass liners, capped with Teflon <br /> squares and plastic end caps, and sealed in clean zip-lock bags The samples will be <br /> placed on ice for transport to the laboratory accompanied by chain-of-custody record <br /> • Down-hole drilling and sampling equipment will be steam-cleaned prior to and <br /> following completion of each sample interval <br /> LABORATORY PROCEDURES FOR SOIL SAMPLES <br /> Soil samples selected will be analyzed for the presence of TPHg, BTEX, and MtBE, <br /> DIPE, TAME, EtBE, TBA, EDB, 1,2-DCA, ethanol, and methanol by EPA Method <br /> 8260B <br /> LABORATORY PROCEDURES FOR GROUNDWATER SAMPLES <br /> Groundwater samples will be analyzed for the presence of TPHg, BTEX, MtBE, DIPE, <br /> TAME, EtBE, TBA, EDB, 1,2-DCA, ethanol, and methanol by EPA Method 8260B <br /> SOIL CUTTINGS AND RINSATE WATER <br /> Soil cuttings generated during drilling operations will be temporarily stored onsite and <br /> covered with plastic sheeting pending characterization and disposal Chevron's disposal <br /> contractor will remove soil cuttings to an appropriate disposal facility Water generated <br /> during steam cleaning will be temporarily stored in DOT-approved 55-gallon drums <br /> pending transport by Chevron's disposal contractor to an appropriate disposal or <br /> treatment facility <br /> Soil cuttings and rinsate water drums will be temporarily stored onsite for <br /> approximately 4 to 8 weeks <br /> I <br /> C IWIND0WS\Desktopl9-2033 SA CPT WPFA doc <br />