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< x <br /> i <br /> 1 <br /> SEQUOIA ANA[Y �IC � <br /> 4 AL <br /> 1900 Bates Avenue, suite suite 6860 Concord,Calilornla 9A520 <br /> i:� (510)686 9066 FA i <br /> ' ERM-West(Sacramento) Client Protect ID: Catellus Stockton #1221.07 <br /> 2001 P Street,Suite 200 <br /> Reported Sep 27. 1991 <br /> Sacramento,CA 95814 CC Sample Group: <br /> 1090775-80,1399-400 <br /> Anention: Shannon Sadler <br /> ., ©UALIV CONTROL DATA REPORT <br /> Chloro- <br /> Chloro- 7oWenO benzene(PID) <br /> ANALYTE Trlchlaroethene <br /> benzene- Benzene <br /> 1,1•Dichloroethene <br /> LY <br /> EPA 8010 EPA 8010 <br /> L ; EPA 6010 <br /> EPA 8010 EPABOtO Pannu <br /> A.Pannu S.Le/A.Pannu S.Le/A panne S.Le <br /> Method: EPA 8010 Pannu S. <br /> Le/A_ PPb ppb <br /> S.Le/A.Pannu S.Le/A ppb ppb <br /> At ppb 23. 1991 Sap 23, 1991 <br /> Reporting Units: ppb Sep 23, 1991 Sap 23, 1991 Sep 6 1 Se 109,0776 109-0776 <br /> Date Analyzed: <br /> Sep 23, 1991 1Q9-0776 109-0776 <br /> QC Sample#: 109'0776 <br /> N.D. N.D. <br /> N.D. N.D. N.D. N.D. <br /> Sample Cone.: <br /> 10 10 <br /> ' Spike Conc. i0 10 <br /> 10 10 <br /> Added: <br /> 1 <br /> ! Conc.Matrix 8.1 1 12 9.5 8.6 9.3 <br /> Spike: <br /> 86 93 <br /> Matrix Spike 81 110 120 95 <br /> %Recovery: <br /> 8.9 9.6 <br /> Conc.Matrix 6.8 12 12 9.7 <br /> Spike Dup.: <br /> Matrix Spike 37 89 96 <br /> p 68 pplicate 12C 120 <br /> %Recovery: <br /> 3.4 3.2 <br /> Relative 17 8.7 0 2.t <br /> 9%Dilierence: <br /> - - -- - -- — --— - ac:01 SamPIB -x 100 <br /> -- — -- - <br /> Cone.of M. nc.Added —- <br /> %Recovery: Spike CA <br /> SI:Q IA ANALyTiC x 100 <br /> Relative%Difference: Conc.of M.S.•('one.of M.S.D. <br /> lConc.of M.S.+cone.of M.S.D.)/2 1090773.L-RS �5� <br /> 1i R.Malerstein <br /> ect Manager <br />