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819 Striker Avenue Suite 8 <br /> Sequoia Sacramento C 95834 <br /> (916)922 1 9600 <br /> FAX(916)921-0 10o <br /> Analytical www sequ--0 <br /> oialabs com <br /> Gettler-Rvan-Rancho Cordova Project Unocal 0187, Stockton,CA Sampled 11/2/00 <br /> 3164 Gold Camp Dr Ste 240 Project Number N/A Received 11/3/00 <br /> Rancho Cordova CA 95670 Protect Manager David Herzog Reported 11/13100 <br /> Total Purgeable Hydrocarbons(C6-Cl2),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analvie Analyzed Level Result-- Result _Units Recov Limits % Limit % Notes"' <br /> Batch 0110069 Date Prepared 1116100 Extraction Method EPA 5030E MeQ I <br /> Blank 0110069-RLK1 <br /> Purgeable Hydrocarbons 1116/00 ND mg/kg 100 <br /> Benzene ND 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND 000500 <br /> Xvlenes(total) ND 000500 <br /> Methvl tert-butyl ether ND 00500 <br /> Surrogate a a a-Trifluorotoluene 0200 0 238 600-140 119 <br /> LCS 0110069-BSI <br /> Benzene 11/6/00 0200 0 198 mg/kg 700-130 990 <br /> Toluene 0200 0 215 700-130 108 <br /> Ethylbenzene 0200 0 225 700-130 112 <br /> -� Xylenes(total) - - - - -' - ^- - 0 600 -- 0583- " - 700-130 972 <br /> Methyl tert-butyl ether 0200 0 198 700-130 990 <br /> Surrogate a a a-Trifluorotoluene 0200 0 228 600-140 114 <br /> Matrix Spike 0110069-MSI SOI IO15-03 <br /> Benzene- - -- - - ---1118100----0 200— ----ND- -0 162 =_=mg/kg= - -60 0-140 810 <br /> Toluene 0200 ND 0 181 600-140 905 <br /> Ethylbenzene - �- l - 0 200"-—ND—- -0 195 - "- - -60 0-140 - 975 - <br /> Xylenes(total) 0 600 ND 0 508 600-140 847 <br /> Methyl tert-butyl ether 0200 ND 0 156 600-140 78 0 <br /> Surrogate a a a-Trifluorotoluene 0200 0 224 600-140 112 <br /> Matrix Spike Dun 0110069-MSDI S011015-03 <br /> Benzene 1118/00 0200 ND 0 168 mg/kg 600-140 840 25 0 3 64 <br /> Toluene 0200 ND 0 185 600-140 92 5 250 2 19 <br /> Ethylbenzene 0200 ND 0201 600-140 101 250 3 53 <br /> Xylenes(total) 0 600 ND 0 518 600-140 863 250 187 <br /> Methvl tent-butyl ether 0200 ND 0 163 600-140 815 25 0 439 <br /> Surrogate a a a-Trifluorotoluene 0200 0 225 600-140 112 <br /> Batch 0110085 Date Prepared 1117/00 Extraction Method EPA_5030BM( e0H) <br /> Blank 0110085-BLK1 <br /> Purgeable Hydrocarbons 1117100 ND mg/kg 100 <br /> Benzene ND 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND 000500 <br /> Xylenes(total) ND 000500 <br /> Methvl tert-butyl ether ND 00500 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 3 of 5 <br />