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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364 9233 <br /> 1 Sequoia 404 N Wlget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988 9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0Io0 <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 94070-4111 (650)232 9600 FAX(650)232 9612 <br /> Pinnacle-C P Project ARCO 6020,Manteca,CA Sampled 5/20/99 <br /> 3939 Cambridge Road,Ste 220 Project Number N/A Received 5120/99 <br /> Cameron Park,CA 95682 Project Manager Joel Coffman Reported 614199 e <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX by DHS LUFT <br /> Sequoia Analytical-Sacramento ' <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units- Notes* <br /> VL-1 5905343-01 sad 1 <br /> Purgeable Hydrocarbons 9050335 5128199 5/27/99 1 00 ND mg/kg <br /> Benzene 000500 ND " <br /> Toluene 000500 ND <br /> Ethylbenzene 000500 ND " <br /> Xylenes(total) 000500 ND " <br /> Surrogate a a a-Tr fluorotoluene 600-140 85 0 % <br /> yi,-2 S905343-02 S" <br /> Purgeable Hydrocarbons 9060069 611/99 611/99 1 00 ND mg/kg <br /> Benzene " " " 000500 ND <br /> Toluene _ _ " 000500 ND " <br /> Ethylbenzene 000500 ND " <br /> Xylenes(total) 000500 - ND " <br /> Surrogate a a a-Trifluorotoluene 600-140 93 5 % <br /> yt-3 5905343-03 SAW <br /> Purgeable Hydrocarbons 9060069 6/1199 6/1/99 100 ND mg/kg <br /> Benzene 000500 ND <br /> -Toluene 0 00500- - -ND- _ <br /> Ethylbenzene 000500 ND " <br />----Xylenes(total)- - -- — _ - _ --_ _ _- _ _0 00500 _-ND <br /> Surrogate a a,a-Trifluorotoluene 600-140 93 S % <br /> V L-4 S90534394 5411 1 <br /> Purgeable Hydrocarbons 9060069 611199 6/1/99 l 00 ND mg/kg <br /> Benzene 000500 ND " <br /> Toluene 000500 ND " <br /> Ethylbenzene 000500 ND <br /> Xylenes(total) 000500 ND " <br /> Surrogate a a a-Trtfluorototuene " " " 600-140 93 5 % <br /> 1 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and def natons <br /> 74 <br /> Ronald W Bobel,Client Services Repr sentative Page 2 of 9 <br />