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Strier Avenue Suite 8 <br /> Sequoia 819Sackamento CA 95834 <br /> Y ` (916) 921-9600 <br /> Analytical FAX(916)921-0100 <br /> Gettler-Ryan-Rancho Cordova Project Unocal 0123,Tracy,CA Sampled 1112100 <br /> 3164 Gold Camp Dr, Ste 240 Project Number NIA Received 1112100 <br /> Rancho Cordova,CA 95670 Project Manager David Herzog Reported 1/19,27/00 <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0010131 Date Prepared 1113100 Extraction Method EPA 5030E McOH <br /> Blank 0010131-BLKI <br /> Purgeable Hydrocarbons 1113100 ND mg/kg 100 <br /> Benzene ND 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene toND 000500 <br /> Xylenes(total) 1. ND 000500 <br /> Surrogate a,a,a-Trifluorotoluene 110200 0 199 600-140 995 <br /> LCS 0010131-BSI <br /> Benzene 1113/00 0200 0 177 mglkg 700-130 885 <br /> Toluene 0200 0 177 700-130 88 5 <br /> Ethylbenzene 0200 0 176 700-130 880 <br /> Xylenes(total) 0 600 0 526 700-130 877 <br /> 0rogate a a,a-Trifluorotoluene 0200 0 192 600-140 960 <br /> 1oCatrix Spike 0010131-MSI 5001115-01 <br /> Benzene 1113100 0200 ND 0 173 mg/kg 600-140 865 <br /> Toluene 0200 ND 0 175 600-140 87 5 <br /> Ethylbenzene 0200 ND 0 175 600-140 875 <br /> Xylenes(total) 0 600 ND 05241 o I, 600-140 873 T <br /> Surrogate a a,a-Trifluorotoluene 0200 0195600-140 975 <br /> Matrix Spike Dup 0010131-MSDI SOOI115-01 <br /> Benzene 1113100 0200 ND 0 165 mg/kg 600-140 82 5 25 D 4 73 <br /> Toluene 0200 ND 0 166 600-140 830 250 528 <br /> Ethylbenzene 0200 ND 0 169 600-140 84 5 250 349 <br /> Xylenes(total) 0 600 ND 0 506 600-140 843 250 350 <br /> Surrogate a a a-Trifluorotoluene 0200 0 184 600-140 92 0 <br /> Batch 0010133 Date Prepared 1113100 Extraction Method EPA 5030B McOH <br /> Blank 0010133-BLKI <br /> Purgeable Hydrocarbons 1/13100 ND ug/l 50 0 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Surrogate a,a a-Triuoratoluene 100 105 600-140 105 <br /> LCS 0010133-BSI <br /> Benzene 1/13100 100 9 12 ug/l 700-130 91 2 <br /> Zmahlene I. <br /> too 9 16 700-130 91 6 <br /> equoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 8 of 17 <br />