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DECON PROCEDURES <br /> The augers, samplers or any other devices that will enter the borings will be steamed cleaned prior <br /> to being used, between sample points and at the end of the drilling/sampling activities. The <br /> samplers and sample sleeves will be washed in water containing Tri Sodium Phosphate (TSP) and <br /> then rinsed in clean water prior to and after use. All rinseate will be temporarily stored on site in <br /> the 1000 gallon ConVault, for later disposal. <br /> SAMPLE PRESERVATION <br /> The sample sleeve containing the soil sample will be sealed with teflon sheets and plastic end caps <br /> to prevent the loss of VOC's (volatile organic compounds). The plastic end caps will be sealed to <br /> the brass sleeve with duct tape and the sleeve labeled with site ID, sample ID, date and time <br /> sampled, name of sampler, and laboratory analysis needed. Once labeled, the sample will be <br /> placed into a ziplock bag, sealed and placed into an ice chest containing ice to keep the sample cool <br /> until delivery to the analytical laboratory. <br /> A Chain of Custody (CofC) will be completed documenting the site ID, sample ID's, date and time <br /> samples were obtained, the laboratory analysis needed, and the name of the sampler. The CofC <br /> accompanies the samples to document their handling progress through analysis the California <br /> Certified Laboratory,North State Environmental ELAP Certificate No. 1753. <br /> SAMPLE ANALYSIS <br /> The three UST's contained unleaded gasoline. San Joaquin County Health and the State of <br /> California require that the soil samples be analyzed for Total Petroleum Hydrocarbons as gasoline <br /> (TPHg) using EPA methods 8015 or 8260, for Benzene, Toluene, Ethylbenzene and Xylenes using <br /> EPA methods 8020 or 8260 and the fuel oxygenants (MTBE, TBA, DIPE, ETBE and TAME) using <br /> EPA methods 8260. <br /> PERMITS <br /> Drilling permits will be obtained from the San Joaquin County Health and permit fees paid prior to <br /> any drilling activities. <br /> NOTIFICATIONS <br /> Underground Service Alert (USA), the City of Stockton Fire Department and San Joaquin County <br /> Health will be notified 48 hours in advance of any drilling at the site. <br /> 3 R-603 UST WP 2/23/99 <br />