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.fir t Y .'.rte �y � �, � -"- � � -�." <br /> -02 <br /> , <br /> a <br /> SEQUOIA IA ANALYTICAL <br /> 1900 Bates Avenue suite LM • Concord,Ca',+fernia 94520 <br /> :101 5oc 9Q66 SAX 15101 686.9689 <br /> ERM-West(Sacramento) Client Project 10: Catellus-Stockton #1221.07 <br /> 2001 P Street.Suite 200 <br /> Sacramento.CA 95814 Reported: Sep 27. <br /> Attention: Shannon SaJler QC Sample Group: 1099775-80-1399-400 - <br /> QUALITY CONTROL DATA REPORT <br /> Ettir <br /> ANALYTE <br /> 9enzene <br /> Toluene [3emena Xylanos <br /> Method: cPAS01518020 EPW15/8020 EPAS01518020 EPAS01515020 <br /> Analyst: R.Halsne R.Halsne R.Halsne R.Halane <br /> Reporting Units: Vg/L ua/L pg/L pg <br /> /L <br /> Date Analyzed* Sep 13, 1991 Sep 13. 1991 "a '3. -,991 Sep 13, 1991 <br /> QC Sample#: 1.1avix Blank matrix stank Matrix 61ank Matrix Blank <br /> Sample Conc.: <br /> N.D. N.D. N.D. N.D. <br /> Spika Cone. 20 20 60 <br /> Added: 20 <br /> Cone.Matrix 75 <br /> Spike: 23 2t 23 <br /> 1 <br /> Matrix Spike <br /> '/o Recovery: 120 i 10 t 20 130 <br /> Cone.Matrix 23 25 81 <br /> Spike Dup.: 25 <br /> Matrix Spike <br /> Duplicate 140 <br /> %Recovery: 130 120 130 <br /> Relative 7.7 <br /> %Difference: 8.3 8'3 8.3 <br /> -- -- -- x-100 <br /> ---- -- <br /> %Retover�: --- --- <br /> SEQUOIA ANALYTICAL Spika Cone.AdtleC <br /> L. �e�lln <br /> Relative%Oitterenra: Canc.ai M.S.•Cane.a!M.S.tI. <br /> x,00 <br /> ulla tt.MaerKana. 10qoJ75.ERS <» <br /> roj t Manager <br />