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CALIFORNIA LABORATORY SERVICES <br /> 06/26/12 09:37 <br /> Environmental Cost Management,Inc. Project: 5725 Hall 2009 CLS Work Order#•CVE1013 <br /> 3525 Hyland Ave.,Suite 200 Project Number: [none] COC#: 130951 <br /> Costa Mesa CA,92626 Project Manager: Binayak Acharya <br /> Conventional Chemistry Parameters by APHA/EPA Methods - Quality Control <br /> CLS Labs <br /> Reporting Spike Source %REC RPD <br /> Analyte Result MDL Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CV03470-General Preparation <br /> Blank(CV03470-BLK1) Prepared&Analyzed:05/25/12 <br /> Nitrate as N ND 0.053 0.50 mg/L <br /> LCS(CV03470-BS1) Prepared&Analyzed:05/25/12 <br /> Nitrate as N 0.478 0.053 0.50 mg/L 0.451 106 80-120 J <br /> LCS Dup(CV03470-BSD1) Prepared&Analyzed:05/25/12 <br /> Nitrate as N 0.465 0.053 0.50 mg/L 0.451 103 80-120 3 20 J <br /> Matrix Spike(CV03470-MS1) Source:CVE1001-03 Prepared&Analyzed:05/25/12 <br /> Nitrate as N 0.471 0.053 0.50 mg/L 0.451 ND 104 80-120 J <br /> Matrix Spike D (CV03470-MSDI) Source:CVE1001-03 Prepared&Analyzed:05/25/12 <br /> Nitrate as N 0.473 0.053 0.50 mg/L 0.451 ND 105 80-120 0.5 20 J <br /> Batch CV03485-General Preparation <br /> Blank(CV03485-BLK1) Prepared:05/25/12 Analyzed:05/29/12 <br /> Total Dissolved Solids ND 10 10 mg/L <br /> Duplicate(CV03485-DUPI) Source:CVE0989-03 Prepared:05/25/12 Analyzed:05/29/12 <br /> Total Dissolved Solids 654 10 10 mg/L 674 3 20 <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 />