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To Tom Ballard Fran Jennifer Riley 362-090 Wed 2 Oct 2002 12 58 57 page 4 <br /> Analytical Laboratory Division <br /> Mobile Laboratory ©ivision <br /> ` Scientific Division <br /> Tech ,Inc <br /> t,"V7',1 l,""— sT 'rest Certificate of Analysis <br /> Client ID GHH Engineering Workorder ID 5187 9C 7AMAR <br /> Workorder# 15093 Sampled 09/26/02 <br /> Laboratory ID 15093001 Received 09/27/02 <br /> SampleID MWl Reported 10/02/02 <br /> Matrix Water <br /> 8260B Oxygenates-8260B <br /> Parameter Prep Date Analyzed Result RL Units Dilution <br /> Tertiary butanol 09/30/02 09/30/02 ND 10000 ug/L 1 2000 <br /> Methyl-tert-butyl-ether 09/30/02 09/30/02 20000D 1000 ug/L 1:2000 <br /> Di-isopropyl ether 09/30/02 09/30/02 ND 10000 ug/L 1 2000 <br /> Ethyl Cert-butyl ether 09/30/02 09/30/02 ND 10000 ug/L 1 2000 <br /> Tertiaryamyl methylether 09/30/02 09/30/02 ND 10000 ug/L 1 2000 <br /> 1,2-DCA 09/30/02 09/30/02 ND 4000 ug/L 1 2000 <br /> Benzene 09/30/02 09/30/02 29000 1000 ug/L 1-2000 <br /> Toluene 09/30/02 09/30/02 ND 1000 ug/L 1 2000 <br /> Ethylbenzene 09/30/02 09/30/02 NII 1000 ug/L 1 2000 <br /> Xylene (Total) 09/30/02 09/30/02 1400 1000 ug/L 1:2000 <br /> Surrogates Result Recovery Luruts <br /> Dzbromodifluoromethane 51 3 ug/L 103 % [76 - 135] <br /> Cerhitca4on No 1614 4 of 34 <br /> Pap <br /> -P4 a FAX i�:�i j62,094? <br /> s Wit, . `y- ,t c.s ~✓` <br />