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404 N Wiget Lane <br /> Sequoia Walnut Creek,CA 94598 <br /> 98 .9600 <br /> ' (925)988-9600 <br /> FAX(925)988-%73 <br /> Analytical www seq'i°'alabs com <br /> rr , <br /> Gettler Ryan,Inc -Dublin r Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco# 11194 Reported <br /> Dublin CA,94568 Project Manager W Skip McIntosh 05-Sep-00 08 13 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source °/aREC RPD <br /> Analyte Result Limit Umts Level Result %REC Limits RPD Lumt Notes <br /> Batch OH30003-EPA 5030B[PIT] s <br /> Blank(OH30003-BLKI) Prepared&Analyzed 30-Aug-00 <br /> Purgeable Hydrocarbons ND 50 ugll <br /> Benzene ND 0 50 " <br /> Toluene ND 0 50 " <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 " <br /> Surrogate a aa-Tr7fluorotoluene 295 300 98.3 70-130 <br /> LCS(OB30003-BSI) - _ Prepared&Analyzed 30-Aug-00 _ <br /> Benzene 19 3 0 50 ug/1 200 96 5 70-130 <br /> Toluene 194 0 50 200 970 70-130 <br /> Ethylbenzene 196 4 0 50 200 990 70-130 - <br /> Xylenes(total) - 569 030 600 948 70-130 <br /> Surrogate n,q a-Trrfluorotoluerw 290 300 967 70-130 <br /> Matrix Spike(OH30003-MS1) Source W008473-02 Prepared&Analyzed 30-Aug-00 <br /> Benzene _ 182 050 ug/l 200 ND 910 70-130 <br /> Toluene - � 18 2 050 200 ND 910 90-130 <br />�Ethylbenzene _ _ _ _ _ 18 4 _ 050 _ 200 __ND 920 70-130 <br /> Xylenes(total) 529 0 50 600 ND 882 70-130 <br /> Surrogate aaa-Tnfluorotoluene— -----191,--— ' -- 30 0 -- --- --970=x-70-130 - ------ <br /> Matrix Spike Dup(OH30003-MSDl) Source W008473-02 Prepared&Analyzed 30-Aug-00 <br /> Benzene 184 0 50 ug/1 200 ND 92 0 70-130 109 20 <br /> Toluene 185 0 50 200 ND 92 5 70-130 163 20 <br /> Ethylbenzene 18 7 050 200 ND 935 70-130 162 20 <br /> Xylenes(total) 53 6 0 50 600 ND 993 70-130 131 20 <br /> Surrogate ema-Tnfluorotoluene 18.1 300 937 70-130 <br /> Sequoia Analytical-Walnut Creek The results to Iks report apply to the samples analyzed to accordance with the char <br /> custody document This analytical report must be reproduced in its erntn <br /> Page 3 of 4 <br />