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CALIFORNIA LABORATORY SERVICES <br /> 09/22/04 10 07 <br /> ENSR-Sacramento Project Former Unocal 5098,5400 PP&VorE 8rodc N"EA10426 <br /> 10411 Old Placerville Rd,Suite 210 Proje,-t Number 06940-293-130 COC# 41209 <br /> Sacramento,CA 95827-2508 Project Manager Ben I Henmgburg <br /> IConventional Chemistry Parameters by APHA/EPA Methods -Quality Control <br /> e Reporting Spike Source %REC CCPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Linut Notes <br /> Batch CN07076-6010AINe Digestion <br /> Blank(CN07076-BLK1) Prepared 09/14/04 Analyzed 09!16104 <br /> Calcium ND 10 mg/L <br /> Magnesium ND 10 <br /> Potassium ND 10 <br /> Sodium ND 10 <br /> Hardness as CaCO3 ND 1 0 " <br /> iLCS(CN07076-BSI) Prepared 09/14/04 Analyzed 09/16/04 <br /> Calcium 118 10 mg/L too 118 80-120 <br /> Magnesium 111 10 100 Ill 80-120 <br /> Potassium 103 1 0 " too 103 80-120 <br /> Sodium 108 1 0 too 108 80-120 <br /> LCS Dup(CN07076-BSDI) Prepared 09/14/04 Analyzed 09/16/04 <br /> Calcium 117 10 mg/L 100 117 80-120 0 S5l 20 <br /> Magnesium 109 1 0 100 109 80-120 182 20 <br /> Potassium 106 1 0 too 106 80 120 287 20 <br /> Sodium 107 10 100 107 80-120 0 930 20 —— <br /> M_atr_tx S_pike7076_-MSI) _ Source CN10357-01 Prepared 09/14/04 Analyzed 09/16/04� __ <br /> Calcium ` ' 256 10 mg1L 100 14 116 75 125 <br /> Magnesium 1 8 1 1 0 " too 66 115 75-125 <br /> Potassium 136 to too 27 109 75-125 <br /> Sodium 309 1 0 too 20 109 75 125 <br /> Mafrix Spike Dup(CN07076-MSDI) - Source CN10357-01 - Prepared 09/14/04 Analyzed 09/16/04 <br /> Calcium 257 1 0 mglL 100 14 117 75-125 0 390 25 <br /> Magnesium 191 10 100 66 115 75-125 000 25 <br /> Potassium 129 10 too 27 102 75-125 528 25 <br /> Sodium 31 0 1 0 100 20 Ho 0 75-125 0 323 25 <br /> CA DORS ELAP Aecredltatlon/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www californlalab com 916-638-7301 Fax. 916-638-4510 <br />