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Sequoia , aoa N wlA 598 <br /> Walnut Geek CA 98598 <br /> 41)41 (925)988-9600 <br /> � Analytical wFAX(925) 73 <br /> www sequolalabs alabs c coin <br /> f " <br /> Gettler Ryan,Inc -Dublin Project Chevron , <br /> 6747 Sierra Court Suite J Project Number Chevron# 9-9840' Reported <br /> 7 <br /> Dublin CA,94568 Project Manager Deanna L Harding 16-Oct-00 08 25 <br /> Total Purgeabie Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> S Sequoia Analytical - San-Carlos - <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Lumts RPD Limit Notes <br /> Batch 0100034- EPA 5030B [P/Tl °' ' , - - r I- - - - - - <br /> Blank(0100034-BLKI) Prepared&Analyzed 08-Oct-00 <br /> Purgeabie Hydrocarbons as Gasoline ND 500 ug/l <br /> Benzene ND 0 500 " <br /> Toluene ND 0 500 " <br /> Ethylbenzene ND 0 500 " <br /> Xylenes(total) ND 0 500 " <br /> Methyl tett-butyl ether ND 500 " <br /> Surrogate q a a-Wuorotoluene 108 100 108 700-130 <br /> LCS(0100034-BSI) - Prepared&Analyzed 08-Oct-00 - - <br /> Benzene 107 0 500 ug/1 to 0 107 700-130 <br /> Toluene 100 0 500 100 100 700-130 ` <br /> Ethylbenzene 943 - 0 500 "V 100 943 700-130 _ W -• <br /> xylenes(total) _ _ _ _ 288 __ _ 0 500 _____ _300- _-_ _960- -700-130-Surrogate 4%g a-Trifluorotoluene 115 100 115 70 0.130 <br /> LCS(0100034-BS2) Prepared&Analyzed 08-Oct-00 <br /> Purgeable Hydrocarbons as Gasoline 241 500 ug/1 250 804 700-130 <br /> _Surrogate 4I%a-T?7j7uorotoluene 108 100 1018 700-130 <br /> Matrut Spike(0100034=MS1)=-- ---Soiree-L009196-06 --Prepared Analyzed-08-OEt-00-- ---— — T- ---------�- <br /> Benzene 105 0 500 ug/1 100 ND _ 105 600-140 <br /> Toluene --�---� ----��- _n=� 9 92 ,--. 0500 �'� 100 ND �—992 600-140 <br /> Ethylbenzene 9 53 0 500 100 ND 95 3 600-140 <br /> Xylenes(total) 289 0 500 300 ND 963 600-140 <br /> Surrogate a,q a-Tri luorotoluene 106 100 106 700-130 <br /> Matrts Spike Dup (0100034-MSD1) Source L009196-06 Prepared&Analyzed 08-Oct-00 <br /> Benzene 121 0 500 ug/I too ND 121 600-140 142 25 0 <br /> Toluene _ 116 0 500 100 ND 116 600-140 156 25 0 <br /> Ethylbenzene 11 1 0 500 100 ND lit 600-140 152 250 <br /> Xylenes(total) 340 0 500 300 ND 113 600-140 160 250 <br /> Surrogate Aga-Tri/luorotoluene 107 100 107 700-130 <br /> Sequoia Analytical-Walnut Creek The results to this report apply to the samples analyaed to accordance with the chain <br /> custody document This analytical report must be reproduced in its entire <br /> Page 7 of 10 <br />