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Sequoia 8i9Sat am Sacramento uCA 95834 <br /> (916)921-9600 <br /> FAX(916)921-0100 <br /> Analytical vAvw sequotalabs Com <br /> Delta Environmental Consultants(Cameron Park) Project Arco 2I30, Stockton,CA <br /> 3330 Cameron Park Dr Ste 550 Project Number NIA Reported <br /> Cameron Park CA,95682 Project Manager Jay Johnson 09/26/01 1? 10 <br /> BTEX by EPA Method 8260B <br /> Sequoia Analytical- Sacramento <br /> Reporting <br /> Analyte - Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MWI-42' (5109169-01)Water Sampled 09/I2/0108 10 Received 09/12/01 10 55 <br /> Benzene ND 20 ugn I 1090217 09/21/01 09/21/01 EPA 8260E <br /> Toluene ND 20 " " ^ <br /> EthyIbenzene ND 20 <br /> Xylenes(total) ND 20 " ^ <br /> Sui rogate 1,1-DCA-d4 - 912% 60-140 1 " " <br /> Surrogate Toluene-d8 908% 60-140 11 ^ <br /> Suri ogate 4-BFB 784% 60-140 11 11 " <br /> Tert-butyl alcohol ND 200 " <br /> Methyl tert-butyl ether ND 20 n <br /> Di-isopropyl ether ND 20 ^ <br /> Ethyl tert-butyl ether ND 20 <br /> Tert-amyl methyl ether_ ND 20 <br /> I rogate 1 2-DCA-d4 - -- - -----� _ —-----_ 912% 60-140 11 11 - <br /> MW2-43' (5109169-02)Water Sampied 09112/0109 06 Received 09/12/0110 55 <br /> Benzene ND 20 ug/l 1 1090217 09/21/01 09/21/01 EPA.8260B <br /> Toluene ND 20 ^ <br /> Ethylbenzene ND 20 " <br /> Xylenes(total) _ _ ND 20 " <br /> Surrogate 12-DCA-d4 mm �- 906% 60-140 11 11 11 » <br /> Surrogate Toluene-d8 920% 60-140 11 11 11 1 <br /> Surrogate 4-3FB 810% 60-140 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 20 <br /> Di-isopropyl ether ND 20 ^ <br /> Ethyl tert-butyl ether ND 20 " R <br /> Tert-amyl methyl ether ND 20 " <br />' Surrogate 1 2-DCA-d4 ---- ----�� 906% � 60-140 <br /> 'orquoia Analytical- Sacramento The results in this report apply to the - <br /> samples anal ed in accordance P Y' with the chain of <br /> custody document Tits analytical report must be reproduced in its entirety <br /> 1041 Page 2 of I I <br />