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1551 Industrial Read <br /> Sequoia �' '�'`A(6 �07�"' <br /> 50)2.32600 <br /> 4 4D FAX(650)Z32-9612 <br /> Analytical www seq"°la`abs`°m <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(1) Sampled 8/31/00 to 9/1/00 <br /> 6747 Sierra Court,Suite J Project Number Former Unocal SS#(0187) Received 9/l/00 <br /> Dublin,CA 94568 prow Manager Deanna Harding Reported 9/18/00 <br /> rNO "1� � fat daY� $n I <br /> Date Spike Sample QC Reporting Limit Rccov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0090060 Date Prepared- 9/12100 Extraction Method: EPA 5030E Wn <br /> Blank 0090060-BLKI <br /> Purgeable Hydrocarbons as Gasoline 9112100 ND 119/1 50.0 <br /> Benzene " ND " 0.500 <br /> Toluene ND 0 500 <br /> Ethylbenzene " ND 0.500 <br /> Xylenes(total) ND " 0.500 <br /> Methyl tert-butyl ether " ND ^ 5.00 <br /> Surrogate a,a,a-Trifluorotoluene 100 9 91 700-130 991 <br /> LCS 0090060-BSI <br /> Benzene 9112100 10 0 10 7 ug/l 70 0-130 107 <br /> B <br /> Toluene " 100 987 " 700-130 987 <br /> e " 100 985 ^ 700-130 985 <br /> —0-es(toi) " 300 299 700-130 997 <br /> Surrogate a,a,a-Tri luonotoluene 100 11 ! 700-130 111 <br /> LS 0090 2 <br /> Purgeable Hydrocarbons as Gasoline 9/12100 250 245 ug/I 700-130 980 <br /> Surrogate a,a,a-TnJluomtoluene 10 0 108 " 700-130 108 <br /> MR"Spike 0090060-M51 L009061-07 <br /> Benzene 9/12100 100 ND 107 ug/l 60 0-140 107 <br /> Toluene 100 ND 991 ^ 600-140 991 <br /> Ethylbenzene ^ 100 ND 9 99 600-140 99 9 <br /> Xylenes(total) 300 ND 308 00 600-140 103 <br /> Surrogate a,a,a-Tnfluorotoluene ff100 108 700-130 108 <br /> Matrix Spike Dun 0090060-MSD1 L009061-07 <br /> Benzene 9/13/00 100 ND 113 ug/l 600-140 113 25 0 5.45 <br /> Toluene 100 ND 103 600-140 103 25 0 3.86 <br /> Ethylbenzene 100 ND 105 600-140 105 25 0 498 <br /> Xylenes(total) " 300 ND 321 ^ 600-140 107 25 0 3.81 <br /> Surrogate a,a,a-Tnfluorotoluene 0100 110 700-130 110 <br /> Batch 0090066 Date Prepared, 9/13100 Extraction Method: EPA 5030B <br /> Blank 0090066-BLK1 <br /> Purgeable Hydrocarbons as Gasolme 9/13100 ND ug/l 50.0 <br /> Benzene ND " 0.500 <br /> Toluene 4wND 0.500 <br /> benzene " ND " 0.500 0.500 <br /> es(total) <br /> Sequoia Analytical-San Carlos *Refer to end of reportfor text of notes and definithons <br /> page 12 of 19 <br /> r� <br />