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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> S e qu o I a 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988 9673 <br /> 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Analytical <br /> 1551 Industnal Road San Carlos CA 94070-411 1 (650)232_9600 FAX(650)232 9612 <br /> � <br /> Pacific Environmental Group-Sac <br /> Project Chevron 1001621,Banta Fuel Terminal Sampled 2122199 <br /> Received 2/23!99 <br /> 11315 Sunnse Gold Circle St M Protect Number 920 002 2D <br /> Rancho Cordova,CA 95742 Project Manager Chris Brown Re orted 319199 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUST/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 /> LCS(continued)Methyl tert-butyl ether 2/26/992-BS1 70 0-130 92 2 <br /> 10 0 9 22 ug/1 <br /> Surrogate a,a,a-Triy7uorololuene 11100 947 600-140 947 <br /> Matrix Spike 2Q30012-9U $242310-08 <br /> Benzene 2126199 100 ND 101 ug/1 60 0-140 101 <br /> Toluene <br /> 100 ND 102 600-140 102 <br /> Ethylbenzene 100 ND 103 600-140 103 <br /> 30 0 ND 314 " 600-140 105 <br /> Xylenes(total) <br /> 10 0 ND 107 600-140 107 <br /> Methyl tert-butyl ether <br /> Surrogate a,a a-Trifluorotoluene <br /> 100 <br /> 9 98 60 0-140 99 8 <br /> Matrix Sv1ke Dut1 9030012-MSD1 5902310-0 <br /> e 2126/99 100 ND 9 98 ug/1 <br /> 60 0-140 99 8 25 0 l 20 <br /> 100 ND 103 " 600-140 103 25 0 0 976 <br /> e 600-140 105 250 1 92 <br /> Ethylbenzene 10 0 ND 10 5 <br /> Xylenes(total) 300 ND 314 �� 600-140 105 25 0 0 <br /> 10 0 ND 108 600-140 108 250 0 930 <br /> Methyl tett-butyl ether <br /> Surrogate a,a a-Trifluorotoluene <br /> 100 100 60 0-140 100 <br /> " <br /> Batch. 901= <br /> nateares Extraction Mrthod. EPA 5030B(P/T) <br /> Rink 9030 -BLK1 ND ug/1 02b500 <br /> Purgeable Hydrocarbons ND 0 500 <br /> Benzene PID 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 500 <br /> Methyl tert-butyl ether 999 600-140 999 <br /> Surrogate a,a a-Trtfluorotoluene 100 <br /> L <br /> 9030028-BSI 70 0-130 973 <br /> Benzene 10 0 3/1/99 too 9 73 ug/1 <br /> 101 700-130 101 <br /> Toluene 10 0 9 80 700-130 98 0 <br /> Ethylbenzene 300 29 2 700-130 97 3 <br /> Xylenes(total) 9 b4 700-130 96 4 <br /> Methyl tett-butyl ether 100 <br /> Surrogate a,a a-Tr�uorotoluene <br /> ' IO 0 101 60 0-140 102 <br /> Matrix Spike SSI 5902321-08 <br /> Benzene 311199 100 ND 964 ug/1 600-140 964 <br /> 100 ND 977 600-140 97 7 <br /> ene <br /> " 10 0 ND 9 64 60 0-140 96 4 <br /> lbenzene <br /> Sequoia Analytical-Sacramento *Refer to end of report far text of notes and definitions <br /> Page 10 of 14 <br /> Sandra'R Hanson,Client Services`lEepresentative <br />