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II <br /> -- E <br /> N�Iim re <br /> I ENO <br /> W <br /> O.H.A. - StOCktan Plating sae. <br /> 1 - E October 10, 1991 <br /> Fag; -7- <br /> 3.2 Soil Samples <br /> d . <br /> Three soil samples were collected from each boring for <br /> laboratory analyses (total 18 samples) . The soil samples were <br /> i <br /> t � W retained, undisturbed, in the brass liners. The liners were h <br /> sealad at the ends with aluminum foil, capped, wrapped with <br /> f;' plastic tape, and labeled. The samples were stored for shipment <br /> in a cooler chill6d with Blue Ice and delivered under chain-of <br />` custody procedures to GeoAnaljtical Laboratories, Inc. , in <br /> t. . <br /> Modesto, California. The samples were delivered to the s <br /> laboratory within 24 hours of collection and analyzed using U.S. <br /> �9 EPA Methods and California-approved methods. The samples were <br /> analyzed .for total petroleum hydrocarbons-gasoline (TPH-G) by F <br /> Method 5030iLUFT' for benzene toluene eth 1 benzene and <br /> r , . Y - xylene <br /> V. <br /> (BTEX) by EPA Method 8020, for total petroleum hydroca-:hons- <br /> diesel (TPH-D) by Method TEPHILUFT and for total lead (Pb) by <br /> I; <br /> Method 7420. <br /> L r <br /> 4 4.0 LABORATORY RESULTS <br /> Laboratory analyses indicate that TPH-G- (2$0 mg/kg and 2.6 <br /> :." <br /> mg/kg) and BTEX constituents were detected in SB3 at depths of 20 <br /> and 30 feet, respectively. Concentrations of BTEX were also <br /> L,. detected in soil boring SB2 at 20 feet ani-45 feel., and in soil *' <br /> :.� borings SB4,.,SB5, and SB5 at 45 feet. Diesel was detected at 26 <br /> s T - mg71�g--in-SBI-ata dtipt}i of 50 feet. - See Table l .for laboratory <br /> i. <br /> aw <br /> _ b <br /> 1 ti CONDOR <br /> ]j <br /> ,ti. <br />