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0680 Chesapeake Drive Redwood City CA 94063 (650)3649600 FAX(650)3649233 <br /> Sequoia 404 N Wiget 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)921-0100 <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 94070-4111 (650) 232 9600 FAX(650)232-9612 <br /> Sequoia Analytical-San Carlos Project N/A Sampled 4/14/99 <br /> 1551 Industrial Blvd Project Number (WO#L904195) Received 4/20199 <br /> San Carlos,CA 94070 Project Manager Mike Gregory Reported 4/30/99 <br /> Total Purgeable Hydrocarbons(C&C12),BTEX and MTBE by DHS LUFT <br /> Sequota_Analy-tical=Sacramento <br /> Ratti, rlate T).tg C�,-rnanta RPnr% Ina, <br /> (Analyte Number Prepared Analyzed Limits Limit Result _- Units _- _ Notes* <br /> L904125-01 (RWI) 5904259-01 Water <br /> Purgeable Hydrocarbons 9040231 4/20/99 4/20/99 500 ND ug/1 <br /> Benzene 0 500 ND " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Methyl tent-butyl ether 500 ND " <br /> Surrogate a,a a-Triuorotoluene 600-140 123 % <br /> L904195-02 (RW2) 5904259-02 Waiex <br /> Purgeable Hydrocarbons 9040248 4/21/99 4/21199 500 NO ug/l <br /> Benzene 0 500 ND <br /> Toluene 0 500 ND <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Methyl tert-butyl ether 500 344 " <br /> Surrogate a a a-Trtfluorotoluene 600-140 116 % <br /> L904195-03 (MMWI) S904259-03 Water <br /> Purgeable Hydrocarbons 9040248 4/21/99 4/21/99 50 0 ND ug/l <br />---Benzene - — 0-500 0 585 <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Surrogate a,a,a-Trtfluorotoluene 600-140 104 % <br /> Methyl tert-butyl ether 500 944 ug/l D <br /> Surrogate a a a-Trtfluorotoluene 600-140 113 % <br /> L904195-04(MW2) 5904259-04 Water <br /> Purgeable Hydrocarbons 9040248 4/21/99 4121/99 50 0 ND ug/l <br /> Benzene 0 500 ND " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Methyl tert-butyl ether 500 393 " <br /> Surrogate a a a-Trtfluorotoluene 600-140 102 % <br /> L904195-05(MM3) 5904259-05 Water <br /> Purgeable Hydrocarbons 9040248 4121/99 4/21/99 500 ND ug/l <br /> Benzene 0 500 ND " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and defort <br /> i� a ZZZZ�— X�-J <br /> Sandra R Hanson,Client Services Representative p Page 2 of 10 <br /> `eco' <br />