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a- ) <br /> 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wlget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(016)921=1jioo <br /> qW 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Cambria Environmental Project EQUILDN,420 Kettlemen LN Lodi,CA Sampled 1/22/99 <br /> 270 Perkins Street Project Number N/A Received 1/22/99 <br /> Sonoma,CA 95476 Project Manager Aubrey Cool Reported 1126,27,28199 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limsts Limit Result Units Nates* <br /> PL-1-2.5(continued) 5901263-05 &11 <br /> Tert-amyi methyi ether 9010284 1127199 1127199 5 00 ND mg/kg D <br /> Surrogate 12-DCA-d4 600-140 956. % D <br /> PL-2-2.5 5901263-06 5911 <br /> Tert-butyl alcohol 9010284 1/27/99 1/27/99 too ND mg/kg <br /> Methyl tert-butyl ether 0 100 ND " <br /> Di-isopropyl ether 0 100 ND <br /> Ethyl Cert-butyl ether 0 100 ND " <br /> Tert-amyl methyl ether 0 100 ND " <br /> Surrogate 12-DCA-d4 " 600-140 844 % <br /> PL73-2.0 5901263-07 5911 <br /> Tert-butyl alcohol 9010284 1/27/99 1/27/99 400 ND mg/kg D <br /> Methyl tert-butyl ether 0 400 370 " <br /> Di-isopropvl ether 0 400 ND D <br /> Ethyl tert-butyl ether 0 400 ND D <br /> Tert-amyl methyl ether " 0 400 ND D <br /> Surrogate 12-DCS]-d4 60 0-fin 91 2 D <br /> PL-I-3 0-3 0 5941363-08 5911 <br /> Tert-butyl alcohol 9010201 1125199 1125/99 too ND mg-kg <br /> Methyl tent-butyl ether 0 100 106 " <br /> Di-isopropyl ether 0 100 ND " <br /> Ethyi tert-butyl ether 0 100 ND " <br /> Tert-amyl methyl ether 0 100 0 108 " <br /> Surrogate 1,2-DCA-d4 600-140 888 % <br /> P_L-5-2.0 5901263-09 5911 <br /> Tert-butyl alcohol 9010201 1125199 1/25/99 100 ND mg/kg <br /> Methyi tert-butyl ether 0 100 ND " <br /> Di-isopropyl ether 0 100 ND " <br /> Ethyl tert-butyl ether 0 100 ND " <br /> Tert-amyl methyl ether - 0 100 ND <br /> Surrogate 12-DCA-d4 " 600-140 940 % <br /> Sequoia Analytical -Sacramento *Refer to end of report for text of notes and def> <br /> /645 -7 <br /> Sandra R anson, Client Services Representative Page 15 of 27 <br />