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• / \ 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364 9233 <br /> Sequoia <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925}988-9600 FAX{925)988-9673 <br /> Analytical 819 Striker Avenue Suite$ Sacramento CA 95$34 {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 /> . 1551 Industrial Road San Carlos,CA 94070 4111 (650)23.2-9600 FAX(650)232-9612 <br /> Gettler-Ryan/Geostrategies(2) Project Tosco(l) Sampled 3/26/99 <br /> 3164 Gold Camp Dr #240 Protect Number Tosco 6981, 140124 Received 3/26/99 <br /> Rancho Cordova,CA 95670 Project Manager Steve Carter Reported 4f 11199 <br /> !yqPi urgega,;6rI�eHy�d_r...o�^car�bo��n'sP'(C- ,11 ?a^�&R�ift�°-slEy X b+j4a 9H <br /> 9 EfWr/,W#ii-ty;ryaC-u0-1r1s&-�x0 <br /> 5g� s C <br /> ��.,_...�wx,�.�,:8-� �w,,C��,.«� <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 90301126 Date Pre ared 3/29/99 Extraction Method EPA 5030B[P/T1 <br /> Blank 9030126-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 3/29/99 ND ug/1 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-Trfluorotoluene 100 10 1 600-140 101 <br /> LCS 9030126-BS 1 <br /> Benzene 3/29/99 10 0 10 1 ug/1 700-130 101 <br /> Toluene 10 0 983 11700-130 98 3 <br /> Ethylbenzene 10 0 10 5 It700-130 105 <br /> Xylenes(total) _ _ — 30 0 — 29 6 It 700-130 98 7 <br /> at0ogate a,a,a-Trlfluorotoluene 100 11 1 If60 0-140 111 <br /> I <br /> Mrix Spike 9030126-MS1 L903263-01 <br /> Benzene 3/29/99 100 ND 978 ug/1 600-140 978 <br /> Toluene 100 ND 954 600-140 954 <br /> Ethylbenzene 100 ND 998 600-140 998 <br /> _Xylenes(total) 300 ND 294 600-140 98 0 <br /> Surrogate a a a-Triflucrotoluene 100 10 1 600-140 101 <br /> Matrix Spike Du p 9030126-MSD1 L903263-01 <br /> Benzene 3/29/99 100 ND 10 1 ug/1 600-140 101 25 0 3 22 <br /> Toluene 100 ND 985 600-140 98 5 25 0 3 20 <br /> Ethylbenzene 100 ND 10 5 600-140 105 25 0 508 <br /> Xylenes(total) 300 ND 30 3 600-140 101 25 0 302 <br /> Surrogate a s a-Trifluorotoluene 10 0 993 600-140 993 <br /> I <br /> equoia Analytical-San Carlos *Refer to end of report far text of notes and defininons <br /> Page 3 of 4 <br />