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• ! 30 Chesapeake Drive Redwood City,C^63 (650)364-9600 FAX(650)36x3-9233 <br /> Sequoia .)4 N.Wiget Lane Walnut Creek,C. ,�„s�8 (925)988-9600 FAX(925}9F38-9673 # <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 /> Cambria Environmental Project: EQUILON, 1313 E.Charter Way,Stockton,CA Sampled: 4/29/99 <br /> 270 Perkins Street Project Number: NIA Received: 4/29/99 <br /> Sonoma,CA 95476 Project Manager: Aubrey Cool Reported: 5/4,7/99 <br /> r� <br /> Total Purgeable Hydrocarbons (C6-02),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 /> TS-E-15'(continued) 5204402-05 S4i1 i <br /> Methyl tert-butyl ether 9040339 4130/99 4/30/99 0.0500 ND mg/kg <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 96.0 % <br /> TS-F-14, S904402-06 <br /> Purgeable Hydrocarbons 9040339 4/30199 4/30199 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total).. 0.00500 0.0296 " <br /> Methyl tert-butyl ether 0.0500 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 95.0 <br /> DS-1-5' 5904402-07 592 <br /> Purgeable Hydrocarbons 9040339 4/30/99 4/30/99 1.00 ND miz�/cg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) " 0.00500 ND " <br /> Methyl tert-butyl ether 0.0500 ND " <br /> Sw-rogate: a,a,a-Tris luorotolueue 60.0-140 93.5 <br /> 125-2-4,5' 5904402-08 &i.l <br /> Purgeable Hydrocarbons 9040339 4/30/99 4/30/99 1.00 ND mg/,ka <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 ND " <br /> Methyl tert-butyl ether 0.0500 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 93.5 <br /> DS-3-4.5' 5904402-09 SO <br /> Purgeable Hydrocarbons 9040339 4!30199 4/30199 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND <br /> Ethylbenzene 0.00500 ND ' " <br /> Xylenes(tatat) 0.00500 0.0255 " <br /> Methyl ten-butyl ether 0.0500 J ND " <br /> Surrogate: a,a,a-Triuorotoluene 60.0-140 93.5 % <br /> -4-4' S904402-10 5211 <br /> Purgeable Hydrocarbons 9040339 4130/99 4/30/99 1.00 ND mg/kg <br /> Sequoia Analytical-Sacramento *Refer to end of report for test of notes and definirions. <br /> Sandra R. Hanson,Client Services Representative Page,3 of 15 <br />