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F C R
<br /> Heath and Safety
<br /> Prior to fieldwork, a Site-Specific Health and Safety Plan (SHSP) was prepared as required by the
<br /> Occupational Health and Safety Administration (OSHA) Standard "Hazardous Waste Operations and
<br /> Emergency Response" guidelines (29 CFR 1910.120) and by California Occupational Health and
<br /> Safety Administration (Cal-OSHA) "Hazardous Waste Operations and Emergency Response"
<br /> guidelines (CCR Title 8, Section 5192). The project manager, field staff, and contractors reviewed
<br /> the SHSP prior to beginning field operations.
<br /> Well Destruction Procedure
<br /> The nine on-site groundwater monitoring wells (MW-1, MW-2, MW-4, MW-9, MW-9A, MW-9S, and
<br /> MW-10, MW-11, and MW-12) and four on-site ozone sparge well pairs (OS-1 S/1 D, OS-2S/2D, OS-
<br /> 3S/3D, and OS-4S/4D) were destroyed in accordance with San Joaquin County Well Standards
<br /> section 13.17.
<br /> Soil Sampling Procedures for Removal of Site Facilities
<br /> Soil samples were collected by advancing 2-inch diameter brass sample liners into undisturbed soil
<br /> with an impact (slide hammer) sampler. Soil samples selected for chemical analysis were retained in
<br /> the brass liners, labeled, and capped with Teflon sheets and plastic end caps. The samples were
<br /> then sealed in zip-lock bags, placed on ice, and transported to a laboratory accompanied by the
<br /> appropriate chain-of-custody documentation.
<br /> Laboratory Procedures for Removal of Site Facilities
<br /> iSoil samples collected beneath the product lines and USTs were analyzed for the presence of total L"
<br /> petroleum hydrocarbons as gasoline (TPHg) by EPA Method 8015 and benzene, toluene, ethyl-
<br /> benzene, total xylenes (BTEX), methyl tertiary butyl ether (MtBE), tertiary butyl alcohol (TBA), di-;
<br /> isopropyl ether (DIPE), ethyl tertiary-butyl ether (EtBE), tertiary-amyl methyl ether (TAME), 1,2-
<br /> dibromomethane (EDB), and 1,2-dichloroethane (1,2-DCA) by EPA Method 8260. Samples
<br /> collected beneath the waste oil UST were analyzed for the presence of TPHg and TPH as diesel 4n'V,
<br /> (TPHd) by EPA method 8015, BTEX, MtBE, TBA, DIPS, EtBE, TAME, 1,2-DCA by EPA Method
<br /> 8260, Cadmium (Cd), Chromium ill and VI (Cr), Lead (Pb), Zinc (Zn), and Nickel (Ni) by EPA Method t ;-
<br /> 6010, and poly chlorinated biphenyls (PCBs) by EPA Method 8270.
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