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IU/28/20114 111:11 y1 bb:384510 CLS LABS NAGE 14 <br /> CALIFORNIA LABORATORY SERVICES <br /> 10/28/04 10:19 <br /> CH2M Hill Project: PG&E-Lathrop <br /> CLS Work Order#:CN80313 <br /> 155 Grand Ave.;Suite 1000 Project Number: 283984.01 <br /> Oakland CA,94612 Project Manager: Bob Noyes COC M 43743 <br /> GasBTEX by GC PIDTID- Quality Control <br /> Reporting Spikc Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit NotN <br /> Batch CN01081 -EPA 5030 Soil GC <br /> Blank(CN01081-BLKI) Prepared&Analyzed:02/10/04 <br /> Gssolinc ND 1000 µg/kg — -- _ <br /> Benzene ND 5.0 " <br /> Toluene ND 5-n ^ <br /> Ethylbenzene ND 5-0 " <br /> Xylcnc-,(total) ND 10 " <br /> Srarrogate o Chlorotnlaene(Gas) 104 " 100 106 70-130 <br /> LCS(CN01081-BSI) Prepared&Analysed:02/10/04 <br /> Senzene 102 5.0 itg/kg 100 102 69-120 <br /> Tolucnc 103 5.0 100 103 74-120 <br /> Etbylbenzene 101 5.0 100 101 76,-121 <br /> Xytencs(total) 283 10 300 94.3 81-121 <br /> $urrnpate o-Chloroto1114'tte(BTEC 106 " 100 106 70 130 <br /> Surrogate-:o-Chlnrotaluene(Gas) 110 100 110 70-130 <br /> LCS Dap(CN01081-BSD1) Prepared&Analyzed:02/10/04 <br /> Benzene 113 5.0 pg/kg la0 113 69.120 10.2 30 <br /> Tolucnc 115 5.0 100 115 74-120 11-0 30 <br /> Ethylbenzene 113 5.0 100 113 76-121 11-2 30 <br /> Xylcncs(tote{) 315 10 300 105 81-121 10.7 30 <br /> Surrogate;;;7C—idarwoluerre(BTEX) 106 100 106 70-130 <br /> Sttrrogttle.;0-C7j10rot0l1?ene(Gac) 109 100 109 70-130 <br /> Matrix Spike(CN01081-MSI) Source:CNB0313-01 Prepared&Analyzed:02/10/04 <br /> 13cn7cnc Ill 5.0 gg/kg 100 ND 111 51-123 <br /> Toluene 113 5-0 too ND 113 61-123 <br /> Ethy1bcn7cnc Ill 5.0 100 ND til 65-124 <br /> Xylenes(total) 311 10 300 ND 104 66-125 <br /> Surrogate:o-ChlorotoFlmne(BTEA) 104 100 104 70-130 <br /> 5ltrrogate.•o-Chlnrotolue-ne(Gas) 108 100 108 70-130 <br /> CA DOHS FLAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova,CA 95742 www.califfornialab.com 916-638-7301 Fax: 916-638-4510 <br />