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L303 South Cherokee Lane TL A91701.01 <br /> March 10, 1995 Page 6 <br /> L <br /> L Three soil borings will be hand augered to approximately five feet BSG at former soil <br /> sample location #'s 7, 8, and 10 (Drawing 2). One soil sample will be collected from the <br /> bottom of each soil boring. Each soil boring will be backfilled with bentonite neat cement. <br /> LDrill cuttings will be stored on and covered by plastic. Soil samples from each boring and <br /> the resulting soil stockpile will be preserved and retained for laboratory analysis. Soil <br /> Ldisposal will be the responsibility of the client. <br /> Drilling activities will be supervised by a Twining geologist. The Twining geologist will be <br /> Lworking under the direct supervision of a California registered geologist. <br /> 4.2 Analytical Procedures <br /> Soil samples collected during this investigation will be submitted to Twining's California <br /> L certified(Certificate No. 1371)analytical laboratory in Fresno,California. Selected samples <br /> will be analyzed for TPH-D, TPH-G, and BTEX. Proposed preparation and analytical <br /> methods for the laboratory analyses are summarized in Table 1. A description of laboratory <br /> quality assurance/quality control procedures proposed for the analyses are described in the <br /> SOPS presented in Appendix A. <br /> %:-;CF:ii ii �R}F <br /> ;...a............. <br /> cif' ~ ..-�:+C••]i:iti�ii: :i{.hoc <br /> ....................... <br /> .......................::::.:::::...:.:.. <br /> ..................................... <br /> �ky■�� �1( kv <br /> :i•:SLi;.}}}'viiii::•i':}}}};v:�ii}ii;y:4:;•}.. <br /> .................................... :................. .................................................::::::•:•::•vv::•::;vii}}}:•:;n}•::.:'......:...:.vn}}:••;:::}:-:iii::ii:}::::.v. <br /> v :::::......:..:.. ........ ................:...:::;....;............,...... ..:v::.:v.v:::p::::: :: v......:.;...::::::::.ir:::i:L:i::i::;:i TGi'}.�•ii}i:'•!'•''}}'r'-n• .:�::ii:.:.�v:nvi. <br /> ......................... : .:::::::hi•i}:y..:..t....a:.;tib'•}i;:::::::.v.. :. ..,. <br /> Total Petroleum Hydrocarbons- 5030 _ GC/FID2 <br /> Gasoline <br /> Benzene,Toluene, 5030 80201 <br /> L Ethylbenzene,Total Xylznes <br /> Total Petroleum Hydrocarbons- 33501 GC/F1D2 <br /> Diesel <br /> 5030 - Purge&Trap <br /> GC/FID - Gas Chromatography/Flame Ionization Detection <br /> L1 United States Environmental Protection Agency, March 1983,Methods for Chemical Analysis of Water and Waste,Second <br /> Edition. <br /> L 2 California State Water Resources Control Board,February 1988, Gas Chromatography/Flame Ionization Detection,Draft <br /> Method for Total Petroleum Hydrocarbons,Hazardous Material Laboratory,Department of Health Services,Reproduced from <br /> the Leaking Underground Fuel Tank(LUPI)Field Manual. <br /> L <br />