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Attachment 1 V" <br /> FIELD AND LABORATORY PROCEDURES <br /> Chevron Service Station 9-0557, 139 South Center Street, Stockton, <br /> California <br /> Health and Safety <br /> In accordance with Occupational Health and Safety Administration (OSHA) Standard "Hazardous <br /> Waste Operations and Emergency Response" guidelines (29 CFR 1910.120), and by California <br /> Occupational Health and Safety Administration (Cal-OSHA) "Hazardous Waste Operations and <br /> Emergency Response" guidelines (CCR Title 8, Section 5192), SECOR will prepare, a Site-Specific <br /> Health and Safety Plan for use during fieldwork. The field staff and contractors will review, the Site- <br /> Specific Health and Safety Plan before beginning field operations at the site. <br /> Soil Sampling <br /> Soil samples will be collected by advancing 2-inch-diameter brass sample liners into undisturbed soil <br /> with an impact (slide hammer) sampler. Soil samples for chemical analysis will be retained in the <br /> brass liners, labeled, and capped with Teflon sheets and plastic end caps. The samples will then be <br /> sealed in zip-lock bags, placed on ice, and transported to a laboratory accompanied by the <br /> appropriate chain-of-custody documentation. <br /> Laboratory Analysis of Soil Samples <br /> Soil samples collected will be analyzed, at a minimum, for the presence of total petroleum <br /> hydrocarbons quantified as. gasoline (TPHg), total petroleum hydrocarbons quantified as diesel <br /> (TPHd), and total petroleum hydrocarbons quantified as motor oil (TPHmo) by EPA Method 8015, <br /> benzene, toluene, ethylbenzene, xylenes (BTEX) and the fuel oxygenates methyl tertiary butyl ether <br /> (MtBE), tertiary butanol (TBA), di-isopropyl ether (DIPE), ethyl tertiary-butyl ether (EtBE), tertiary- <br /> amyl methyl ether (TAME), 1,2-dibromomethane (EDB), 1,2-dichloroethane (1,2-DCA), and ethanol <br /> by EPA Method 8260, and total lead by EPA Method 7420. <br /> Soil Stockpiling and Sampling <br /> Upon excavation, soil will be stockpiled onsite and covered with plastic sheeting. Four samples of <br /> the stockpiled soil will be collected and composited for analysis per 100 cubic yards of soil, or as <br /> required by the licensed receiving facility or San Joaquin County. Chevron's waste management <br /> contractor will haul impacted soil excavated from the site to an appropriate waste disposal facility. <br /> The anticipated period of time in which excavated soil will remain stockpiled onsite prior to offsite <br /> disposal will be approximately four to six weeks. i <br />