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` Sequoia 40 ,laopeake"'"'e Redwood City,CA 940 / (650)364-9600 FAX(650)364-9233 <br /> 4 N Wlget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)468-9673„ <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell BW North,Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 940704111 (650)232-9600 FAX(650)232-9612 <br /> Sequoia-Redwood City Project Kayvan Kunyai Sampled 2126199 <br /> 680 Chesapeake Dnve Project Number 9903085-(Cambna) Received 3/3/99 <br /> Redwood City,CA 94063 Pro ect Manager- Kayvan Kimym Laertied 3/16199 <br /> Date Spike Sample QC Reporting Lunit Recov RPD RPD <br /> e AnAUEd Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9030033 Date Prepared 3/9199 Extraction Method. EPA 5030B 1P/71 <br /> Blank 9030033-BLKI <br /> Purgeable Hydrocarbons as Gasoline 3/9/99 ND ug/1 500 <br /> Benzene " ND to 0 500 <br /> Toluene " ND It 0 500 <br /> Ethylbenzene ND to 0 500 <br /> Xylenes(total) ND 0 500 <br /> Surrogate a,aa-Tri luorotoluene <br /> 100 104 600-140 104 <br /> LCS 90030033-BSI <br /> Purgeabie Hydrocarbons as Gasoline 3/9/99 250 204 ug/1 700-130 816 <br /> Surrogate a,a,a-Tri luorotoluene 100 136 66 0-140 136 1 <br /> Matrix Spike 9030033-MSI L903012-01 <br /> Purgeable Hydrocarbons as Gasoline 319/99 250 220 u9/1 600-140 <br /> ate a,a,a-Tnfluorotoluene 10 0 992 to600-140 99_2 <br /> Matrix Spike]D;uv 9030033-MSDI L903012-01 <br /> Pur eable Hydrocarbons as Gasolme 3/9/99 250 233 119/1 600-140 250 <br /> Surrogate aa,a-Tnfluorotoluene " 100 961 IT 600-140 961 <br /> Batch- 9030041 Date Pre ared 110199 Extraction Method EPA 5030E iPM <br /> Blank 9030041-BLK1 <br /> Purgeabie Hydrocarbons as Gasoline 3110199 ND u9/1 50 0 <br /> Benzene ND TM 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) of ND 0 500 <br /> Surrogate a,a,a-Trrfluorotoluene N 100 953 600-140 95 3 <br /> LCS 9030041-BS1 <br /> Benzene 3110199 100 877 ug/] 700-130 877 <br /> Toluene 100 873 It 700-130 873 <br /> Ethylbenzene 100 8 74 700-130 874 <br /> Xylenes(total) " 300 261 700-130 870 <br /> Surrogate aa,a-Tnfluomtoluene 100 886 600-140 886 <br /> Matrix Spike 9030041-MSI L903022-04 <br /> Benzene 3/10199 10 0 ND 927 ug/1 600-140 92 7 <br /> Toluene 100 ND 922 600-140 92 2 <br /> Ethylbenzene 100 ND 925 600-140 925 <br /> Xylenes(total) 300 ND 277 600-140 92.3 <br /> Sa Analytncal-San Carlos *Refer to end of report for text of motes and definitions <br /> Page 8 of 1 l <br /> .PQ <br />