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CALIFORNIA LABORATORY SERVICES <br /> Committed, Responsive. Flexible. <br /> Page 3 of 4 12/05/19 12:41 <br /> Precision Enviro-Tech Project: 9112504 <br /> 3935 N.Coronado Ave Project Number: [none] CLS Rork Order#:19K1313 <br /> Stockton,CA 95204 Project Manager: Jonathan HV Lee COC#: <br /> EDB and DBCP by EPA Method 504.1 -Quality Control <br /> Reporting Spike Source °/6REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Note; <br /> Batch 1910013-EPA 504.1 <br /> Blank(1910013-BLK1) Prepared&Analyzed: 11/27/19 <br /> Ethylene dibromide ND 0.020 µg/L <br /> 1,2-Dibromo-3-chloropropane ND 0.010 " <br /> LCS(1910013-BS1) Prepared&Analyzed: 11/27/19 <br /> Ethylene dibromide 0.309 0.020 µg/L 0.286 108 70-130 <br /> 1,2-Dibromo-3-chloropropane 0.296 0.010 0.286 103 70-130 <br /> LCS Dup(1910013-BSDI) Prepared&Analyzed: 11/27/19 <br /> Ethylene dibromide 0.306 0.020 119/1, 0.286 107 70-130 0.9 30 <br /> 1,2-Dibromo-3-chloropropane 0.300 0.010 0.286 105 70-130 1 30 <br /> Matrix Spike(1910013-MSI) Source:19K1249-01 Prepared&Analyzed: 11/27/19 <br /> Ethylene dibromide 0.317 0.020 µg/L 0.286 ND Ill 65-135 <br /> 1,2-Dibromo-3-chloropropane 0.313 0.010 0.286 ND 109 65-135 <br /> Matrix Spike Dup(1910013-MSDI) Source:19K1249-01 Prepared&Analyzed: 11/27/19 <br /> Ethylene dibromide 0.321 0.020 Rg/L 0.286 ND 112 65-135 1 30 <br /> 1,2-Dibromo-3-chloropropane 0.317 0.010 0.286 ND Ill 65-135 1 30 <br /> 3249 Fitzgerald Road,Rancho Cordova,CA 95742 1 800.638.7301 1 Tel:916.638.7301 x102 I Fax:916.638.4510 1 vwvw.californialab.com <br /> Small Business#2916 1 ELAP#1233 1 NAICS#541380 1 CA SWRCB ELAP Accreditation/Registration Number 1233 <br />