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e <br /> r, <br /> August b, 1991 ---------- <br /> ARCO Station No. 548 <br /> Bated: dropped 30 inches. The <br /> 140-Pound hammer rep Y <br /> driven 18 inches with a standard e satnp <br /> ' ed to drive ler each successive 6-inch interval will be <br /> number of blows required <br /> -, ive an indication of soil consistency. <br /> counted and rc=orded to g <br /> evaluated a PID, which measures hydrocarbon concentrations <br /> Soil samples will be can <br /> a <br /> the <br /> ambient air or headspace above the soil sample• Field <br /> levels of hydr arbonvapors. <br /> be useful for providing a Preliminary assess:^cnt of the relative recision as <br /> ,rbe PID does not detect concentrations of hydrocarbons emical{analysihe s will be sealed <br /> possible <br /> anal ses. Soil samples selected for p laced <br /> laboratory Y s and tape. The samples will be labeled and p <br /> quickly with aluminum foih Plastic cap Chain of Custody Records will be illitiated <br /> in iced storage for transport to dhwill laboratory company the samples io the laboratory. <br /> Copies of <br /> by the geologist in the field a les of the field logs, the Chain <br /> {hese records will be presented in our final report. ExamP oC Boring are included <br /> of <br /> Custody Record, the Unified Soil Classification System. and Log <br /> in Appendix C. <br /> lactic sheeting and will <br /> "- generated during drilling will be stockpiled at the site on p 'these <br /> Cuttings <br /> lastic. Four soil samples will be collected from the dim cuttings.ointo one <br /> be covered with p roved laboratory to be c p <br /> samples will be submitted to an ARCO"app {ions of the <br /> zed. The analytical results will be used to evaluate disposal op <br /> sample and analy onsibility of ARCO <br /> cuttings. Disposal of the sail will remain the resp <br /> Monitorin - nstruct <br /> Well o <br /> ill be used to evaluate the ground"water flow direction and whether <br /> Monitoring wells v+ hydrocarbons and <br /> hydrocarbons are present in the ground water near suspected sources of <br /> 9 <br /> AGS 30004-4 <br />