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CALIFORNIA LABORATORY SERVICES <br /> Committed. Responsive. Flexible. <br /> Page 4 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 /> Conventional Chemistry Parameters by APHA/EPA Methods -Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2604747-General Prep <br /> Blank(2604747-BLK1) Prepared&Analyzed:06/11/26 <br /> Nitrate as N ND 0.40 mg/L <br /> LCS(2604747-BS1) Prepared&Analyzed:06/11/26 <br /> Nitrate as N 5.01 0.40 mg/L 5.00 100 80-120 <br /> LCS Dup(2604747-BSD1) Prepared&Analyzed:06/11/26 <br /> Nitrate as N 4.99 0.40 mg/L 5.00 100 80-120 0.4 20 <br /> Matrix Spike(2604747-MS1) Source:26FO588-01 Prepared&Analyzed:06/11/26 <br /> Nitrate as N 4.91 0.40 mg/L 5.00 0.0838 97 80-120 <br /> Matrix Spike(2604747-MS2) Source:26FO603-01 Prepared&Analyzed:06/11/26 <br /> Nitrate as N 5.66 0.40 mg/L 5.00 1.14 90 80-120 <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 />