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CALIFORNIA LABORATORY SERVICES <br /> Committed. Responsive. Flexible. <br /> Page 5 of 6 06/22/26 15:02 <br /> Terracon-Lodi Project: 11065 N Alpine Road <br /> 902 Industrial Way Project Number: [none] CLS Work Order#:26FO631 <br /> Lodi,CA 95240 Project Manager: Tony Mikacich COC#: <br /> EDB and DBCP by EPA Method 504.1 -Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2604852-EPA 504.1 <br /> Blank(2604852-BLKI) Prepared&Analyzed:06/15/26 <br /> Ethylene dibromide ND 0.020 µg/L <br /> 1,2-Dibromo-3-chloropropane ND 0.010 " <br /> LCS(2604852-BS1) Prepared&Analyzed:06/15/26 <br /> Ethylene dibromide 0.303 0.020 µg/L 0.286 106 70-130 <br /> 1,2-Dibromo-3-chloropropane 0.297 0.010 0.286 104 70-130 <br /> LCS Dup(2604852-BSD1) Prepared&Analyzed:06/15/26 <br /> Ethylene dibromide 0.299 0.020 µg/L 0.286 105 70-130 1 30 <br /> 1,2-Dibromo-3-chloropropane 0.308 0.010 0.286 108 70-130 4 30 <br /> Matrix Spike(2604852-MS1) Source:26FO572-01 Prepared&Analyzed:06/15/26 <br /> Ethylene dibromide 0.300 0.020 µg/L 0.286 ND 105 65-135 <br /> 1,2-Dibromo-3-chloropropane 0.293 0.010 0.286 ND 103 65-135 <br /> Matrix Spike Dup(2604852-MSD1) Source:26FO572-01 Prepared&Analyzed:06/15/26 <br /> Ethylene dibromide 0.294 0.020 µg/L 0.286 ND 103 65-135 2 30 <br /> 1,2-Dibromo-3-chloropropane 0.283 0.010 " 0.286 ND 99 65-135 4 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 www.colifornialab.com <br /> Small Business#2916 1 ELAP#1233 1 NAICS#541380 1 CA SWRCB ELAP Accreditation/Registration Number 1233 <br /> For regulatory purposes,please refer to www.californialab.com/certifications to find a list of approved analytes by method. <br />