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C� • <br /> 404 N Wget Lane <br /> Sequoia Walnut Creek CA 94598 <br /> (925)988-9600 <br /> Analytical FAX equo alabs corn <br /> Gettler Ryan, Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco#6981 Reported <br /> Dublin CA 94568 Project Manager Scott Polston 13-Aug-01 07 25 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analvte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1G27002 - EPA 5030B PJT <br /> Blank(IG27002-BLKI) Prepared&Analyzed 26-Jul-01 <br /> Purgeable HydrocarbonsT ND IO mg/m'Air <br /> Benzene ND 010 " <br /> Toluene ND 010 " <br /> Eth)[benzene ND 0 IO " <br /> Xytenes(total) ND 010 " <br /> Methyl tert-butyl ether ND 0 50 " <br /> Surrogate aaa-Tr:fluarotoluene 512 600 853 70-130 <br /> Blanc.(IG27002-BLK2) Prepared&Analyzed 27-Jul-Ol <br /> Purgeable Hvdrocarbonb _ ND 10 mg/tn'Air <br /> Benzene ND 010 " <br /> Toluene ND 010 • <br /> Ethylbenzene ND 010 " <br /> xylenes(total) ND 0 10 <br /> Methyl ter{-butyl ether ND 050 " <br /> Surrogate a a a-Trruorotoluene 7 72 11600 139 70-130 <br /> Blank(1G27002-BLK3) Prepared&Analyzed 02-Aug-0l <br /> Purgeable Hydrocarbons ND 10 mg/ml Air <br /> Benzene ND 010 <br /> Toluene ND 0 to " <br /> Ethylbenzene ND 010 " <br /> Xylenes(total) ND 010 " <br /> Methyl tert-butyl ether ND 050 " <br /> Surrogate a a a-Trflu <br /> oraroluene 502 600 83 7 70-130 <br /> LCS(iG27002-BSI) Prepared&Analyzed 26-Jul-OI <br /> Benzene 1 94 0 10 mg/m'Air 200 970 70-130 <br /> Toluene 1 88 0 10 200 940 70-130 <br /> Eth)lbenzene 1 84 0 l0 200 92 0 70-130 <br /> Xy lenes(total) 5 18 010 600 963 70-130 <br /> Surrogate a a a-Trifluorotoluene 536 A 600 893 70-130 <br /> Senuota Analytical - Walnut Creek The results in this report apply to the samples analy_ed in accordance with th�n of <br /> custody document This analytical report must be reproduced in it ety <br /> Page 5 of 9 <br />