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i CALIFORNIA LABORATORY SERVICES <br /> Page 6 of 11 12/09/05 11 36 <br /> APEX Envirotech Inc -Gold River Project Flag City New West#1003 <br /> 11244 Pyrites Way Project Number NWP01 004 CLS Work Order# COL0196 <br /> Gold River,CA 95670 Project Manager Jennifer Worsley <br /> Conventional Chemistry Parameters by APHAIEPA Methods - Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch C009200-General Prep <br /> Blank(CO09200-BLKI) Prepared&Analyzed 12/06/05 <br /> Chloride ND 050 mg/t. <br /> Fluoride ND 010 " <br /> Nitrate as NO3 ND 20 " <br /> Sulfate as SO4 ND 050 " <br /> LCS(CO09200-BS1) Prepared&Analyzed 12/06/05 <br /> Chloride 195 050 mg/L 200 975 80-120 <br /> Fluonde 220 0 10 200 110 80-120 <br /> Nitrate as NO3 2 10 20 200 105 80-120 <br /> Nitrate as N 0 475 050 0 451 105 80-120 <br /> u1fate as SO4 5 13 050 500 103 80-120 <br /> CS Dup(CO09200-BSDI) Prepared&Analyzed 12/06/05 <br /> Chloride 196 050 mg/L 200 980 80-120 0 512 20 <br /> Fluonde 2 18 0 10 200 109 80-120 0 913 20 <br /> Nitrate as NO3 2 12 20 200 106 80-120 0 948 20 <br /> Nitrate as N 0 479 050 0 451 106 80-120 0 839 20 <br /> Sulfate as SO4 5 18 050 500 104 80-120 0 970 20 <br /> Matrix Spike(CO09200-MSI) Source COL01.82-01 Prepared&Analyzed 12/06/05 <br /> Chlonde 708 050 mg/L 200 49 109 75-125 <br /> Fluoride 240 010 200 021 110 75-125 <br /> Nitrate as NO3 910 20 200 75 800 75-125 <br /> Nitrate as N 205 050 0 451 1 7 776 75-125 <br /> Sulfate as SO4 6 51 050 Soo 1 6 982 75-125 <br /> Matrix Spike Dup(CO09200-MSD1) Source COL0182-01 Prepared&Analyzed 12/06/05 <br /> Chloride 709 050 mg/L 200 49 110 75-125 0 141 25 <br /> Fluoride 241 010 200 021 110 75-125 0 416 25 <br /> Nitrate as NO3 9 It 20 200 75 805 75-125 0 1 1 0 25 <br /> Nitrate as N 206 050 0 451 17 798 75-125 0 487 25 <br /> Sulfate as SO4 653 050 500 16 986 75-125 0 307 25 <br /> CA DOHS FLAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova,CA 95742 www californialab.com 916-638-7301 Fax 916-638-4510 <br />