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1 <br /> CALIFORNIA LABORATORY SERVICES ' <br /> 04-06-09 09:40 ' <br /> Geocon Consultants Project: Former Vintage Car Wash <br /> 3160 Gold Valley Dr.Suite#800 Project Number: S9183-06-01 CLS Work Order#:CSCIO53 , <br /> Rancho Cordova CA,95742 Project Manager: Kevin Brown COC#: 103393 <br /> Conventional Chemistry Parameters by APHA/EPA Methods -Quality Control t <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes ' <br /> Batch CS02367-General Pre <br /> Blank(CS02367-BLK1) Prepared&Analyzed:03-31-09 , <br /> Hexavalent Chromium ND 1.0 pg/L. <br /> LCS(CS02367-BSI) Prepared&Analyzed:03-31-09 <br /> Hexavalent Chromium 4.68 1.0 gg/L 5.00 94 80-120 , <br /> LCS Dup(CS02367-BSDI) Prepared&Analyzed:03-31-09 <br /> Hexavalent Chromium 4.89 1.0 pg/L 5.00 98 80-120 4 20 <br /> Matrix Spike(CS02367-MSI) Source:CSC1057-01 Prepared&Analyzed:03-31-09 ' <br /> Hexavalent Chromium 4.90 1.0 gg/L 5.00 ND 98 75-125 <br /> Matrix Spike Dup CS02367-MSDl) Source:CSC1057-01 Prepared&Analyzed:03-31-09 <br /> Hexavalent Chromium 4.88 1.0 pg/L 5.00 ND 98 75-125 0.3 25 , <br /> ALIf 47 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova,CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />