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1 SS 1 lndustriat Road <br /> S Sequoia �^ •6 72111 <br /> -9 <br /> FAX(650)Z32-%12 <br /> Analytical viww squolatabs <br /> Gaoler-RyMVCM0strateWes(1) Project. Tosco(5) Sampled 6126/00 <br /> = 6747 Stara Court.Suite J— = Project Number_ Tosoo(Unocal)SS#6981 - _ _ _ _ _ _Rec_mv_ed.- 6_/27/0_0 = <br /> Dublin,CA 94568 Project Manager Deanna Hardwg Reported 7/12100 <br /> e <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Anal Analyzed Level Result Result Units Recov Lm uts % Lmut % Notes* <br /> Batch- 0070031 Date Pre ared• 717100 ExtmctioMethod: EPA 5030B FPM <br /> Bek 00700 1-BLKI <br /> Ethanol 7/7100 ND ug/l 1000 <br /> 1,2-Dibromoethane ND 2.00 <br /> 1,2-Dichloroethane ND 2.00 <br /> Di-isopropyl ether " ND 2.00 <br /> Ethyl tert butyl ether ND " 2.00 <br /> Methyl tert-butyl ether ND 2.00 <br /> Tart-amyl methyl ether ND 2.00 <br /> Tert-butyl alcohol ND " 100 <br /> Surrogate 1,2 I)ichloroethane-d4 " Soo 452 760-114 904 <br /> Surrogate Toluene-d8 500 452 880-110 904 <br /> Blank 0070031 BLK2 <br /> Ethanol 7110100 ND ug/l 1400 . <br /> 1,2-Dibromoethane " ND 2.00 <br /> 1,2-Dlchloroethane " ND " 2.00 <br /> Di-isopropyl dher ND 2.00 <br /> Ethyl tat-butyl ether " ND " 2.00 <br /> Methyl tent-butyl ether ND " 2.00 <br /> Tat-amyl mdhyl ether ND 2.00 <br /> Tert-butyl alcohol " ND 100 <br /> Surrogate 1,2 Dwhloroethane-d4 Soo 534 760-114 107 <br /> Surrogate Toluene-d8 500 515 880-110 103 <br /> Blank 0070031-BLK3 <br /> Ethanol 7/10/00 ND ug/l 1000 <br /> 1,2-Dibromoethane " ND 2.00 <br /> 1,2-Dichlomethane ND 2.00 <br /> D:-isopropyl ether ND " 2.00 <br /> Ethyl tert-butyl ether ND 2.00 <br /> Methyl tert-butyl ether ND " 2.00 <br /> Tert-amyl methyl ether ND 2.00 <br /> Tort-vutyl alcohol ND 100 <br /> Surrogate 1,2Dhchloroethane-d4 500 540 N760-114 108 <br /> Surrogate Toluene-& N500 503 ff880-110 101 <br /> 0070031-BSI <br /> Meth 1 tert-butyl ether 7/7/00 Soo 494 ug/l 700-130 988 <br /> Surrogate 1,2-Dtchlornethane-d4 500 464 " 760-114 92 8 <br /> Surrogate Toluened8 Soo 450 " 880-110 900 <br /> Sequoia Andybeal-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 25 of 30 <br />