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Sequoia <br /> 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> S 404 N Wlget Lane Walnut Creek CA 94598 (925}988 9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (9161 921-9600 FAX(916)92 1-0100 <br /> 41)— 1455 Analytical 155t Ind� rriallRoaad Noah Ste D San IumaCarlosCCA 94070-41 11 (650)232 9600A 94954 (77) 792-1865FAX(707)792-032 <br /> FAX(650►232-9612 <br /> r. <br /> Emcon- Pinnacle Project Arco 2168,Stockton,CA Sampled 5/25/99 <br /> 3939 Cambridge Road,Ste 202 Project Number 21775-234 004 Received 5/25/99 <br /> Cameron Park,CA 95682 Project Manager Dave Foley Reported 6/8/99 <br /> Total Purgeable Hydrocarbons (C6-C12),BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes <br /> MW-1 (53) 5905333-01 Water <br /> Purgeable Hydrocarbons 9060108 6/4/99 614/99 10000 22600 ug/l I,D <br /> Benzene 100 8410 D <br /> Toluene 100 291 D <br /> Ethylbenzene 100 854 D <br /> Xylenes(total) 100 1160 D <br /> Methyl tert-butyl ether " 1000 ND D <br /> Surrogate a,a,a-TriJluorotoluene " " 600-140 941 % <br /> MW-2(521 5905333-02 Water <br /> Purgeable hydrocarbons 9060108 6/4199 6/4/99 1000 1720 ug/l 1,13 <br /> Benzene 100 469 D <br /> Toluene 100 479 D <br /> Ethylbenzene loo 578 D <br /> Xylenes(total) loo 764 D <br /> JdUhyl tent-butyl ether 100 ND D <br /> gate a a a-Trifluorotoluene 600-140 961 % <br /> 1AWx._,53;f53) 5905333-03 Water <br /> Purgeable Hydrocarbons 9060108 614199 6/4/99 10000 24000 ug/l 2,13 <br /> Benzene 100 9320 D <br /> Toluene 100 356 D <br /> Ethylbenzene 100 2220 D <br /> Xylenes(total) 100 1070 D <br /> Methyl tert-butyl ether 1000 ND D <br /> Surrogate a a a-Tri luorotoluene 600-140 110 <br /> MW-4(58) S905333-04 Water <br /> Purgeable Hydrocarbons 9060109 614199 614/99 10000 53700 ug/l I'D <br /> Benzene 100 9870 D <br /> Toluene 100 4870 D <br /> Ethylbenzene 100 ND D <br /> Xylenes(total) 100 4600 D <br /> Methyl tert-butyl ether 1000 22200 D <br /> Surrogate a a a-Tnfluorotoluene 600-140 93 1 % <br /> MW-5(54) S905333-OS Water <br /> Purgeable Hydrocarbons 9060109 6/4/99 614/99 10000 11800 ug/l 1,D <br /> Benzene 100 2060 D <br /> Toluene 100 1060 D <br /> Ethylbenzene 100 ND D <br /> Xylenes(total) 100 1380 D <br /> is Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Ronald W Bobel,Client Services RepLesentative page 2 of 9 <br />