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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> S e qu o 1 a 404 N Wiget Lane Walnut Creek CA 94598 (925)9W9600 FAX(925)988 9673 <br /> 819 Striker 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(650}232"962 <br /> Analytical 1 <br /> 1551 Industrial Road San Carlos CA 94070-4 1 1 1 (650)232-9600 <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 2123/99 <br /> Rancho Cordova,CA 95742 Pro ect Man---- Chas Brown Reported 3/9199 <br /> Volatile Oxygenate Compounds by EPA Metbod 8260A/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Anal e <br /> Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch, 9030031 Date Prep2Ifd. .3/2199 Ext ction Mpthod. EPA 5030 IP/11 <br /> Blah 9030031-BLKl <br /> Tert-butyl alcohol 312/99 ND ug/k 200 <br /> NB 200 <br /> Methyl tert-butyl ether 200 <br /> Dl-isopropyl ether ND " <br /> ND 200 <br /> Ethyl tert-butyl ether <br /> ND 200 <br /> Tert-amyl methyl ether <br /> ND 3000 <br /> Ethanol <br /> Surrogate 1,2-DCA-d4 or500 55 0 600-140 110 <br /> LCS 3/2/911 50 0 556 ug/l 700-130 111 <br /> Methyl tertbutyl ether 11600-140 110 <br /> Surrogate 1 2-DCA-d4 50 0 550 <br /> AL9,,,C 9030031-MSI 52423191 <br /> Methyl tert-butyl ether 3/2199 500 ND 544 ug/i 600-140 109 <br /> Surrogate 1 2-DCA-d4 50 0 482 to600-140 964 <br /> Matrix Spik 9030031-MSD1 S902301-01 <br /> Methyl tert-butyl ether 3/2199 500 ND 524 ug/1 600-140 105 25 0 3 74 <br /> Surrogate 1,2-DCA-d4 <br /> 500 460 600-140 920 <br /> 0 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> i� Page 13 of 14 <br /> Sandra R orison, Bent Services Representative <br />