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819 Strilcer Avenue Suite 8 <br /> Sequoia Sacramento,CA 95834 <br /> (916)921-9600 <br /> . FAX 00Analytical www sequoialabscom <br /> Delta Environmental Consultants(Cameron Park) Project Arco 2130, Stockton,CA <br /> 3330 Cameron Park Dr Ste 550 Project Number N/A Reported <br /> Cameron Park CA, 95682 ProjectManager Jay Johnson 09/26/01 17 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 /> MW5-43' (5109169-05)Water Sampled 09/12/0107 34 Received 09/12/01 10 55 <br /> Benzene ND 20 ua/I t 1090217 09121/01 09[21101 FPA 8260B <br /> Toluene ND 20 " <br /> Ethylbenzene ND 20 ^ ^ <br /> Xylenes(total) ND 20 ^ <br /> Surrogate 12-DC4-d4- — 942% 60-140 <br /> Surrogate Toluene-d8 932% 60-140 " <br /> Surrogate 4-BFB 776% 60-140 " <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether 29 20 ^ <br /> Di-isopropyl ether ND 20 ° ^ <br /> Ethyl tert-butyl ether ND 20 <br /> Tert-amyl methyl eth_er ND 20 _ ^ <br /> rrogate 1 2-DCA-d4- ------ --___ —_ 942% 60-140 -- <br /> W6-42' (5109169-06)Water Sampled 09/12/0108 30 Received 09/12/01 10 55 <br /> Benzene ND 20 ug/l 1 1090238 09/24/03 09/24/01 EPA 8260B <br /> Toluene ND 20 " <br /> Ethylbenzene ND 20 " <br /> Xylenes(total) _ ND 20 ^ <br /> Surrogate 12-DCA-d4 103% ' 60-140 ^ " <br /> Surrogate Toluene-d8 110% 60-140 <br /> Surrogate 4-BFB 992% 60-140 " <br /> Tert-butyl alcohol ND 200 <br /> Methyl tent-butyl ether ND 20 <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 " ^ <br /> Tert-amyl methyl ether ND 20 ^ <br /> Surrogate 1 2-DCA-d4 -- �_` _----- -- 103% 60-140 � - ----�-W_-��—�--�--�� �-------�--- <br /> e uoia Analytical- Sacramento - <br /> q y The results in this report Apply to the samples analyzed ac in accordance with the chain of <br /> custody document nis analytical report must be reproduced to its entirety <br /> Page 4 of 11 <br />