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T - - <br /> f <br /> 404 N Wiget Lane <br /> Sequoia Walnut Creek CA 94598 <br /> (925)988-9600 <br /> 25) <br /> Analytical www sequFAX quoilabs alabs c 73 <br /> Cam <br /> Gettler Ryan, Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco <br /> #6981 Reported <br /> Dublin CA 94568 Project Manager Scott Polston 13-Aug-01 07 25 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX in Air by DHS LUFT- Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Lima Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1G27002- EPA 5030B PIT <br /> i <br /> LCS(IG27002-ES2) Prepared&Analyzed 27-Jul-01 <br /> Benzene _� <br /> 426 0 010 mglm'Air 400 106 65-120 <br /> Toluene 424 0 010 400 106 65-120 <br /> Ethylbenzene 428 0 010 400 107 65-120 <br /> Xylenes(total) 119 0 010 120 992 65-120 <br /> Surrogate a,a a-Tri luorotoluene 580 600 96 7 70-130 <br /> LCS(IG27002-BS3) Prepared&Analyzed 02-Aug-01 <br /> Benzene Y 4 04 0 010 mg/ml Air 400 I01 65-120 <br /> Toluene 396 0 010 400 990 65420 <br /> Ethylbenzene 4 04 0 010 400 101 65-120 <br /> Xylenes(total) 113 0 010 12 0 942 65-120 <br /> V <br /> ogate a a a-Trriuorotoluene )86 W 600 97 7 70-130 <br /> S aup(1G27002-BSD1) Prepared 26-Jul-01 Analyzed 02-Aug-01 <br /> Benzene 202 0 010 mg/ml Air 200 101 65-120 404 25 �� <br /> Toluene 1 98 0 010 200 990 65-120 5 18 25 <br /> Ethylbenzene 193 0 010 200 96 5 65-120 477 25 <br /> Xylenes(total) 5 44 0 010 600 90 7 65-120 490 25 <br /> Surrogate a a a-TrIuorotoluene _-- 5 46 -� -- --- 600 ----- 910 70-130—�—�- ---- <br /> �uota Analytical - Walnut Creek The results in this report apply to the samples analyzed to accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirely <br /> Page 8 of 9 <br />