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A � <br /> Sequoia 404 N WiLane <br /> Walnut Creek CAA 94598 <br /> ,!TNFAX (925)988-99673 <br /> 600 <br /> m,ff Analytical WWW sequoialabs com <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> _6747 Sierra-Court-Suite J Project Number Chevron 4 9-6171 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 31-Jul-01 07 59 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW 10(W107262-10)Water Sampled 12-Jul-01 11 39 Received 13-.Tui-01 17 35 <br /> Purgeable Hydrocarbons 130 50 ug/I I IG20003 24-Jul-01 24-Jul-Ol EPA D-06 <br /> 8015M/8020 <br /> Benzene ND 0 50 " <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 ^ <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 2 5 ^ <br /> Surrogate a,a,a-Trifluorotoluene 105% 70-130 <br /> MW 11D(W107262-11)Water Sampled- 12-Jul-01 15 56 Received 13-Jul-01 17 35 <br /> Purgeable Hydrocarbons 100 50 ugfl I 1G20003 24-Jul-01 24-Jul-01 EPA D-06 <br /> 8015M/8020 <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 25 <br /> Surrogate a,a a-Trt,Jluorotoluene 100% 70-130 " <br /> MW 12(W107262-12)Water Sampled. 12-Jul-01 09 36 Received. 13-Jul-01 17 35 <br /> Purgeablc Hydrocarbons ND 50 ug/l I 1G20003 24-Jul-01 24-Jul-01 EPA <br /> _ 8015M/8020 <br /> Benzene - ND _ 050 - <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " ^ <br /> Mcthyl tort-butyl ether ND 25 <br /> Surrogate a,a,a-Trifluorotoluene 963% 70-130 " <br /> Sequoia Analytical- Walnut Creek The results in this report apply to the samples analyzed to accordance with thec <br /> custody document This analytical report must be reproduced in its e m <br /> Page 5 of 18 <br /> r� <br />