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819 Striker Avenue Suite 8 <br /> lx� Sequoia Sacramento, CA 95834 <br /> (916)921-9600 <br /> w 4iAnalytical FAXequo 921-0100 <br /> www squotalabs corn <br /> Delta Environmental Consultants-Cameron Park Project ARCO 548, Stockton, CA Sampled 9128100 <br /> 3330 Cameron Park Dr Project Number N/A Received 9/28/00 <br /> Cameron Park;CA 95682 Project Manager Jay Johnson Reported 9/29/00 <br /> =� x Total°Pur eable HJdrocarbons CG"C12 B - <br /> 1 g y _( ) TEX WiidFMT-1�E-iiF:%� b DHS�L'1TF <br /> ' _• x- y - TI uaht Conti � T <br /> `���`r ;' r•+p^ a: •s r i ,..: Y_T OIC, ? o <br /> ".».Sequoia-Ailalyt�al f Saerarnento-.—.'s <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0090293 Date Prepared 9/28/00 Extraction Method EPA 5030B McOH <br /> Blank 0090293-BLKI <br /> Purgeable Hydrocarbons 9128/00 ND mg/ml Air 100 <br /> Benzene ND " <br /> 00500 <br /> Toluene ND 00500 <br /> Ethylbenzene ND 00500 <br /> Xylenes(total) ND 00500 <br /> Metbyl tert-butyl ether ND 0 500 <br /> Surrogate a,a,a-Tnfluorotoluene 200 202 600-140 101 <br /> LCS 0090293-BSI <br /> Benzene 9/28/00 2 00 1 97 mg/ml Air 700-130 98 5 <br /> Toluene 200 200 1. 700-130 100 <br /> Ethylbenzene 200 200 700-130 100 <br /> ries(total) 600 5 52 " 700-130 920 <br /> yl tert-butyl ether 2 00 _ 2 59 700-130 129 <br /> Surrogate a,a,a-Triuorotoluene 200 2 08 600-140 104 <br /> LCS Dup 0090293-BSDI <br /> Benzene 9128/00 2 00 1 89 mg/ml Air 700-130 945 250 4 15 <br /> Toluene 200 192 700-130 960 25 0 4 08 <br /> Ethylbenzene 200 1 92 700-130 960 250 408 <br /> Xylenes(total) 600 532 700-130 88 7 25 0 365 <br /> _Methyl tert-butyl ether 200 2 59 700-130 129 250 0 <br /> Surrogate a,a,a-Trifluorotoluene 200 2 00 600-140 100 <br /> Batch 0090331 Date Prepared 9/29/00 Extraction Method EPA 5030E(MeOH) <br /> Blank 0090331-BLK 1 <br /> Purgeable Hydrocarbons 9/29/00 ND mg/m'Air 100 <br /> Benzene ND 00500 <br /> Toluene ND 00500 <br /> Ethylbenzene ND 00500 <br /> Xylenes(total) ND 00500 <br /> Methyl tent-butyl ether ND 0 500 <br /> Surrogate a,a,a-Try7uorotoluene 200 224 60 0-140 112 <br /> LCS 0090331-BSI <br /> Benzene 9/29/00 200 205 mg/ml Air 700-130 102 <br /> Toluene 200 202 700-130 101 <br /> Ethylbenzene 200 2 10 700-130 105 <br /> Xylenes(total) 600 6 26 700-130 104 <br /> 1 tAa <br /> l ether 2 00 2 23 ����� <br /> Sequoia ical-Sacramento *Refer to end of report for text If notes and def mons <br /> Page 4 of 7 <br /> I <br /> I <br />