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CALIFORNIA LABORATORY SERVICES <br /> ` Page 6 of 12 12/22/11 15:54 <br /> Kleinfelder(Stockton) Project: DSS-Tracy <br /> 2001 Arch-Airport Road,suite 100 Project Number: 29131 CLS Work Order#:CUL0724 <br /> Stockton CA,95206 Project Manager: Joseph D.Zilles COC#: 15614 <br /> V Conventional Chemistry Parameters by APHA/EPA Methods - Quality Control <br /> l` Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CU09104-General Preparation <br /> Blank(CU09104-13LKI) _ Prepared&Analyzed: 12/16/11 <br /> Specific Conductance(EC) ND 1.0 µmhos/cm <br /> Batch CU09109-General Prep <br /> fp <br /> Blank(CU09109-BLKI) _ Prepared&Analyzed: 12/16/11 <br /> Nitrate as NO3 ND 0.50 mg/L <br /> Sulfate as SO4 ND 0.50 " <br /> Chloride ND 0.50 " <br /> LCS(CU09109-BSI) Prepared&Analyzed: 12/16/11 <br /> Sulfate as SO4 5.07 0.50 mg/L 5.00 101 80-120 <br /> ` Nitrate as NO3 2.07 0.50 " 2.00 104 80-120 <br /> Chloride 1.97 0.50 2.00 98 80-120 <br /> LCS Dup(CU09109-BSDI) Prepared&Analyzed: 12/16/11 <br /> LSulfate as SO4 5.09 0.50 mg/L 5.00 102 80-120 0.4 20 <br /> Chloride 2.01 0.50 2.00 100 80-120 2 20 <br /> Nitrate as NO3 2.08 0.50 2.00 104 80-120 0.3 20 <br /> LMatrix Spike(CU09109-MS1) Source:CUL0724-01 Prepared&Analyzed: 12/16/11 <br /> Sulfate as SO4 55.6 0.50 mg/L 5.00 47.1 170 75-125 QM4X <br /> Chloride 72.2 0.50 2.00 78.8 NR 75-125 QM4X <br /> Nitrate as NO3 30.4 0.50 2.00 29.4 48 80-120 QM-4X <br /> L Matrix Spike Dup(CU09109-MSDI) Source:CUL0724-01 Prepared&Analyzed: 12/16/11 <br /> Chloride 73.4 0.50 mg/L 2.00 78.8 NR 75-125 2 25 QM-4X <br /> Nitrate as NO3 31.1 0.50 2.00 29.4 82 80-120 2 20 <br /> L Sulfate as SO4 56.8 0.50 5.00 47.1 194 75-125 2 25 QM4X <br /> L <br /> 1pV <br /> 4 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> IL 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />