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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite S Sacramento CA 95834 (916)921-9600 FAX(916)921-0104 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1865 FAX(707)792-0342 <br /> Gettler-Ryan-Sac Project Chevron 9-3232, Stockton,CA Sampled 10/29/98 to 10/30/98 <br /> 3164 Gold Camp Dr,Ste 240 Project Number 346463 01 Received 10/30/98 <br /> Rancho Cordova CA 95670 Project Manager Todd Del Frate Reported 11./10/98, 11/13/98 <br /> Total Put geable Hydrocarbons (C6-C12), 131 EX and MTBE by DHS LUFT <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analy7ed Limits Limit Result Units Notes* <br /> MW-1-54.5 S810352-11 sad <br /> Methyl tert-butyl ethei 8110061 1115198 11/5/98 00500 ND mg/kg <br /> Surrogate a a a-Trifluorololucne " 600-140 100 % <br /> M W_2-,4,0 S810352-13 sn-11 <br /> Purgeable Hydrocai bons 8110061 1115/98 1 115198 1 00 ND mg/kg <br /> Benzene 000500 ND " <br /> Toluene 000500 ND " <br /> Ethylbensene 000500 ND " <br /> Xylenes(total) 000500 ND <br /> Methyl tert-butyl ether 00500 ND <br /> Surrogate a a a-Trrfhrorotoluene 600-140 995 YQ <br /> MW-2-20.5 S81035215 6911 <br /> geable Hydrocaibons 8110061 11/5198 11/5/98 1 00 ND mg/kg <br /> rene 000500 ND <br /> Toluene 000500 ND <br /> Ethylbenzene 000500 ND <br /> Xylenes(total) 000500 ND <br /> Methyl tert-butyl ether 00500 ND <br /> Surrogate a a a-Trlhrorotoluene " 600-140 100 <br /> M W-2-30.5 5810352-17 SVA <br /> Purgeable Hydrocarbons 8110084 11/6/98 11/9198 1 00 294 ing/kg l <br /> Benzene 000500 0 184 <br /> Toluene 000500 ND " <br /> Ethylben7ene 000500 0 187 <br /> Xylenes(total) 000500 0 579 <br /> Methyl tert-butyl ether 00500 ND " <br /> Surrogate a a a-Trrflumotoluene 600-140 105 <br /> MW-2-44,5 581035219 sad <br /> Purgeable Hydrocarbons 8110084 11/6198 11/9/98 200 14 8 mg/kg 1,13 <br /> Benzene 00100 0 742 D <br /> Toluene 00100 00338 D <br /> Ethylbenxene 00100 0 338 „ D <br /> Xylenes(total) 00100 1 45 D <br /> Methyl tert-butyl ether 0 100 ND D <br /> .Surrogate a a a-Trrflumotolueue 600-140 103 <br /> MW-2-505 5810352-21 S(W <br /> rgcable Hydrocarbons 8110156 11/12/98 11/12/98 20 0 593 mg/kg 2,D <br /> —Sequoia Analytical-Sacramento *Rcfer 10 enc/of e eport for text of noles and definilrons <br /> r <br /> J in a C Schneider,Laboratory Director Page 3 of 9 <br />