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y <br /> 404 N Wiget Lane <br /> Sequoia Walnut Geek,CA 94598 <br /> 4 (925)988-9600 <br /> ID Analytical FAX(925)988-9673 <br /> ttler Ryan,Inc -Dublin Project Unocal <br /> ,5747 Sierra Court Suite J Project Number Unocal SS# 5886 Reported <br /> Dubhn CA,94568 Project Manager Deanna L Harding 14-Sep-99 17 49 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Luntt Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-9I(W908373-17)Water Sampled 16-Aug-99 15 10 Received- 18-Aug-99 14 00 <br /> Ethanol ND 500 ug/l 1 9H31o05 30-Aug-99 30-Aug-99 EPA 8260A <br /> tert-Butyl alcohol ND 100 <br /> Methyl tert-butyl ether ND 20 " <br /> Di-isopropyl ether ND 20 <br /> Ethyl tett-butyl ether ND 20 " <br /> tert-Amyl methyl ether ND 20 <br /> Surrogate Dibromofluoromethane 102% 50-150 " <br /> Surrogate 12-Dtchloroethane-l4 980% 50-150 " <br /> MW-9D (W908373-18)Water Sampled 16-Aug-99 15 38 Received 18-Aug-99 14 00 <br /> Ethanol ND 500 ug/1 1 9H31005 30-Aug-99 30--kug 99 EPA 8260,E <br /> [ tert-Butyl alcohol ND 100 " <br /> Methyl tert-bUtV1 ether ND 2 0 " <br /> Dt-t2,opropv1 ether ND 20 <br /> l-tr,I tt-rt-but,,I ether ND 2() <br /> jW-Amvl meth%I ether ND 2 0 <br /> arrogate Dthtnmofhioromerhane 102% 50-150 <br /> Srutogate 1 3-Drchlotoethane-d4 104% 50-150 <br /> MW-10S(W908373-19)Water Sampkd 16-Aug-99 13 37 Rtcened 18-Aug-99 14 00 A-0I <br /> Ethanol ND 500 ug/1 l 9H31005 30-Aug-99 30--kug-99 EPA8260A <br /> tort-Sutvl ali.ohol ND 100 31-Aug-99 <br /> Meth%I tort-hut%I ether 69 2 0 <br /> Di-tsopropvt ether ND 2 0 <br /> Ethl,1 t,.rt-hutvI ether ND 20 <br /> test-Amvl MOON i ether ND 20 " <br /> Surrogate Dthtonroflttoromeihane 106% 50-150 " <br /> Surrogate 1 2-Dtehloroethane-cN 104310 50-130 <br /> Sequoia Analytical - Walnut Creek The newhr in da v mIN)rt apply to t1w rrmrples rmalyzed i n uecardrmee wrth the c/ran of <br /> castodp doctrnrent Thos unalyacul mpewt nu tit he reprm1uced rn r tr ennreiv <br /> 0 <br /> u c 'eg ey Project anag JL11 <br /> Pagc 1 i of if, <br />