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AN <br /> F Y PRE-TAK SITE ASSESWBfT 4ORULAM <br /> E 1605 S. EL Dorado, Stockton, CA <br /> Aegis Project No. 90-205 <br /> Page 4 <br /> f� of and <br /> All drill cuttings will bet stored temporarily abortory on site <br /> analysisp of the <br /> covered by plastic sheeting pending of the stockpiled <br /> f:t boring samples. Additional sampling and testing <br /> soil may be required in order to Vent landfiii disthe drill sal criteria. <br /> Following receipt of the laboratory results, an <br /> will be transported from the mite,,by a state-licensed hauler to <br /> appropriate disposal facility. ter_k t'VC- <br /> Ling, the bore hales will be backfilled with <br /> Upon completion of dril <br /> 9-sank slur�.y. The`-slurry will not--free f&I-1---more-than ateeter <br /> feet. The slurry will be placed by-tram <br /> than Y <br /> ANALYTICAL L7IBORAT0RX AND DETECTION LIMITS <br /> The laboratory to be used for the analyses discussed above is <br /> ied as Analytical Services of <br /> I ' tentatCalifornia,idenestate-certified-araiytica?11 laboratory. <br /> Napa, <br /> } ' The detection limits for the soil analyses are as follows: <br /> So' - <br /> r a) for TPH, as gasoline, the detection limit is 1.0 ppm; <br /> \�\ b for BTX&E the detection limits are 0.005 )app: <br /> C) for EDB the detection limit is `U.045 ppm; <br /> d) for Total Lead the detection limit is 5 ppr. <br /> e same and <br /> .� be <br /> In addition, a spike peak, surrogat1it rolstandards <br /> of will <br /> the <br /> run to ensure quality <br /> assurance/nqu Y <br /> an <br /> (SOP-5, Apped x <br /> € + PERHITTXITG <br /> ' Application for a Permit to drill exploratory borings from the <br /> SJCPHSD will be required for the work proposed herein. In <br /> E ired <br /> addition, review of th)iation la by SZTCPHSD staff The SJCPHSD review 1ll be and permitting <br /> prior to drilling init working days to <br /> Process is expected to take up to ten (10) g <br /> provided Exxon authorizes "Priority Review," in writing. <br /> complete, understood to be sixty to ni:Tety <br /> Standard review time is currently <br /> ._days. ----- ------------------ <br /> 90-205A.WPN <br /> i <br /> 90-205.WP <br />