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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-92333 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos CA 94070-41 11 (650)232-9600 FAX(650)Z32-9612 <br /> innacle-C P Project ARCO 6020, Manteca,CA Sampled 5120199 <br /> 3939 Cambridge Road,Ste 220 Project Number NIA Received 5120199 <br /> ameron Park,CA 95682 Project Manager Joel Coffman Reported 6/2/99 <br /> Total Pnrgeable 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 /> Inalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch, 9050249 Date Prepared. 5/20199 ExtrUtign Method, EPA 5030B(MeOH) <br /> �1311k 9050249-BLKI <br /> Purgeable Hydrocarbons 5120/99 ND mg/kg 100 <br /> nzene ND 000500 <br /> tluene <br /> ND 000500 <br /> Ethylbenzene ND 000500 <br /> ylenes(total) ND 000500 <br /> rrogate a s a-Trifluorotoluene 0200 0 165 600-140 825 <br /> 1CS 2050249-BSI <br /> tnuene <br /> zene 5/20/99 0200 0 196 mg/kg 700-130 980 <br /> 0200 0202 700-130 101 <br /> Ethylbenzene 0200 0202 700-130 101 <br />.Xylens(total) 0 600 0 604 700-130 101 <br /> gale a a a-Trtfluorotoluene 0200 0160 600-140 800 <br /> MatriX pig 9050249-MSI 5905241-23 <br /> Ienzene 5120199 0200 ND 0 157 mg/kg 600-140 785 <br /> oluene 0200 ND 0 165 600-140 825 <br /> thylbenzene 0200 ND 0 167 600-140 83 5 <br /> ylenes(total) 0 600 ND 0 504 600-140 840 <br /> itrrogate a a a-Triuorololuene 0200 0 162 600-140 810 <br /> Matrix Spike Dun 9050249-MSD1 5905241-23 <br /> Ienzene 5120/99 0200 ND 0 157 mg/kg 600-140 78 5 250 0 <br /> oluene 0200 ND 0 162 600-140 81 0 25 0 183 <br /> thylbenzene 0200 ND 0 167 600-140 83 5 250 0 <br /> Xylenes(total) 0 600 ND 0 499 600-140 83 2 250 0 957 <br /> urrogate a a a-Triuorotoluene 0200 0 161 600-140 805 <br /> Jequoia Analytical-Sacramento *Refer to end of report for text of notes and def nitrons <br /> ----mac-- ✓� <br /> onald W Bobel, <br /> Page 5 of 8 <br /> Client Services R presentative <br />