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Entech <br /> Inc. CA E�APnu 222 <br /> 525 Del Rey Avenue, Suite E • Sunnyvale, CA 94086 • (408) 735-1550 • Fax (408) 735-1554 <br /> Clearwater Group,Inc. Date 12/16/98 <br /> 520 Third Street, Suite 104 Date Received 12/8/98 <br /> Oakland, CA 94607 Project C-178 <br /> Attn: Doug Guenther PO# <br /> Sampled By Client <br /> Certified Analytical Report <br /> Water Sample Analysis: <br /> Sample ID C-178W2 C-178W3 C-17SW1 <br /> Sample Date 12/8/98 12/8/98 1218198 <br /> Sample Time 1140 1205 12 15 <br /> Lab# E21956 E21957 E21958 <br /> Result DF DLR Result DF DLR Result DF DLRJ PQLI Method <br /> Results to µg/I..tter: <br /> Analysis Date 12/12/98 12/12/98 12/12/98 <br /> TPH-Gas ND 10 501 1,300 10 50 26,000 20 1000 50 8015M <br /> MTBE ND 10 5 01 13 1 0 5 0 140 20 1001 5 0 8020 <br /> Benzene 097 10 050 92 10 050 1,600 201 10 -0-50 8020 <br /> Toluene ND 10 050 095 10 050 11400 20 101 0 50 8020 <br /> Ethyl Benzene ND 10 0 50 9.3 10. 050 600 201 101 050 8020 <br /> Xylenes ND 10 050 ND 10 050 2,100 20 10 050 8020 <br /> Analysis Date 12/15/98 12/15/98 12/15/9$ <br /> tert-Butanol ND 10 20 ND 10 20 ND 1 20 4001 20 8240 <br /> MTBE ND 101 10 ND 10 10 ND 1 20 201 1 0 8240 <br /> Dusopropyl ether ND 10 50, ND 101 50 ND 1 20 1001 5 0 8240 <br /> Ethyl-te rt-butyl ether ND 10 5 0 ND 10 50 ND 1 20 1001 5 0 8240 <br /> tert-Amylmethyl ether ND 10 5 0 ND 1 0 501 ND 20 1001 5 0 8240 <br /> DF=Dilution Factor ND=None Detected above DLR PQL=Practical Quantitation Lunt DLR=Detection Reporting Lunit <br /> 1 Sample diluted due to high concentrations of non-target hydrocarbons <br /> 2 Report amended 12/16/98 <br /> 3 Analysis performed by Entech Analytical Labs, Inc (CA FLAP#2324) <br /> Michelle L Anderson,Lab Director <br /> Environmental Analysis Since 1983 <br />