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404 N Wiget Lane <br /> Sequoia Walnut Creek CA 94598 <br /> (925)988 9600 <br /> Analytical FAX equoalabs corn <br /> Gettler Rvan Inc -Dablin Project Tosco <br /> 6747 Sierra Cou•-t Suite J Project Number Tosco h 11 192 Reported <br /> Dublin CA 94568 Project Manager Doug Lee 04-Sep-01 07 28 <br /> Total Purgeable Hydrocarbons (C&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 1H24003- EPA 5030B P/T <br /> Blank(11324003-BLK1) Prepared&Analyzed 24-Aug-01 <br /> Purgeable Hvdrocarbons(C6-C12) ND 50 ug0 <br /> Benzene ND (1 50 " <br /> "toluene ND 050 " <br /> Eth,,lbenzcne ND 050 " <br /> X,lenes(total) ND 0 50 <br /> Methyl ten-bun I ether(MTBE) ND 25 <br /> Sur)ogate a a a-Tnfluo'otal.4ene 272 -- 300 90 % 70-130 <br /> Blank (I B24003-BLK2) Prepared&Anah zed 27-Aug-01 <br /> Pu*geabie H�drocarhnns f6-C 12} � _ � - -ND ----- 50— ug/l -------------�-_ �--�-------------- <br /> Benzene ND 050 " <br /> 0 <br /> e ND 050 <br /> " <br /> enzene ND 050 <br /> X}lenee notal) ND 050 <br /> Veth%I ter-butN I ether(MTBE) ND 25 <br /> 5urrogate a a a-Triruurotoluene - - _—28 S - -- -- -- — 300 ----- 950 _ -0-130 --- <br /> Blenk(1H24003-BLK3) Prepared&Anah zed 28-Aug-01 <br /> Purzeablc Hydrocarbons(C6-C12) - ND 50 ugl) <br /> Benzene ND 050 " <br /> Toluene ND 050 ' <br /> LthNlbenzene ND 050 <br /> Xvtenes(total) ND 050 " <br /> MethNI tet?-butyl ether(M ME) ND 2 5 " <br /> Surrogate a a a-Triliuorotolucre 286 300 953 70-130 <br /> Blank(1[-124003-BLK4) Prepared&Analyzed 29-Aug-01 <br /> Purgeable Hvdrocarnons(C6-C12}---------- ND —�� 50 ug/l — ------- - — <br /> Benzene ND 0 50 " <br /> roluene ND 0 50 <br /> Eth)Ibenzene ND 050 " <br /> X%lenes(total) ND 0 50 " <br /> Meth)I ten-bun i ether(MTBE) ND 2 5 " <br /> 5urrogate a a a TnJ1uo otoluene -_ - - 280 -_ -- ---- 300 93 3 70-130 — <br /> la Analytical - Walnut Creek The results to This report apply to the samples analyzed in accordance unh the chain of <br /> custony+document This analytical report must he reproduced to its entirety <br /> I <br /> Page 6 of 12 <br />