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680 Chesapeake Drive Redwood City <br /> CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988%73 <br /> Sequoia <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 /> Pacific Environmental Group-Sac Project Chevron 1001621,Banta Fuel Terminal Sampled 2122199 <br /> 11315 Sunrise Gold Circle St M Project Number 920 002 2D Received 2123199 <br /> Rancho Cordova,CA 95742 Project Manager Chris Brown Reported 319199 <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch. 9020313 nate Prepared, 2/25/99 ExtractigD Method, PA 550-1013(PZI) <br /> Blank 902 o313-BLK1 <br /> Purgeable Hydrocarbons 2125199 ND ug/l 50 0 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Surrogate a,a,a-Tnfluorotoluene 100 102 600-140 102 <br /> ILS 9020313-BSI <br /> Benzene 2125199 100 9 47 ug/l 70 0-130 94 7 <br /> 9 43 70 0-130 943 <br /> Toluene 100 <br /> Ethylbenzene 100 947 ,1 700-130 947 <br /> YAlfts(total) 30 0 284 700-130 947 <br /> ate a,o,a-Trifluorotoluene 100 987 600-140 98 7 <br /> Matrix Spike 9020313-MSI 990'2310-04 <br /> Benzene 2125199 100 ND 956 ug/l 60 0-140 45 6 <br /> Toluene <br /> 100 ND 940 600-140 940 <br /> Ethylbenzene 100 ND 9 51 600-140 951 <br /> Xylenes(total) 300 ND 28 4 600-140 947 <br /> Surrogate a a,a-Trifluorotoluene 100 9 65 600-140 965 <br /> 5902310-04 <br /> Benzene 2125199 100 ND 9 05 ug/l 60 0-140 90 5 25 6 5 48 <br /> Toluene <br /> 100 ND 8 84 600-140 884 25 0 6 14 <br /> 100 ND 8 87 600-140 88 7 25 0 696 <br /> Ethylbenzene <br /> 60 0 140 $9 7 25 0 5 42 <br /> Xylenes(total) 300 ND 269 <br /> Surrogate a,a a-Trifluorotoluene 100 7 61 60 0-140 76 I <br /> is <br /> Sequoia Analytical-Sacramento *Refer to end of report for test of notes and definitions <br /> L�Client <br /> ����ntativeSandra R anso , Page 7 of 14 <br />