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y, v+ww.energylab.wm i Halana, Idi 877-472-0711 a Billings, MT 800-735-4489 = Casper, WY 888435-0515 <br />..? N ar+ahtrrsterceoeucestnce 1852 1 Gillette, WY 866-686-7175 V Rapid City, SO 888-672-1225 a College Station, TX 88B-690-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation <br />Project: Schwartzwaider Water Monitoring Program-Discharge <br />Analyte Count Result Units <br />Method: E903.0 <br />Sample ID: C10090967-001AMS Sample Matrix Spike <br />Radium 226 20 pCi/L <br />Sample ID: 010090967-001AMSD Sample Matrix Spike Duplicate <br />Radium 226 17 pCi/L <br />Sample ID: MB-RA226-4857 3 Method Blank <br />Radium 226 -0.1 pCi/L <br />Radium 226 precision (±) 0.08 pCi/L <br />Radium 226 MDC 0.2 pCi/L <br />Sample ID: LCS-RA226-4857 Laboratory Control Sample <br />Radium 226 8.6 pCi/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum delectable concentration <br />Revised Date: 10/26/10 <br />Report Date: 10/21/10 <br />Work Order: 010090967 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: RA226-4857 <br />Run: BERTHOLD 770-2_101005C 10117/10 10:53 <br />109 70 130 <br />Run: BERTHOLD 770-2.101005C 10117110 10:53 <br />92 70 130 15 24.4 <br />Run: BERTHOLD 770-2101005C 10/17/1010:53 <br />U <br />Run: BERTHOLD 770-2_101005C 10/17110 10:53 <br />111 70 130 <br />ND - Not detected at the reporting limit. <br />U - No[ detected at minimum detectable concentration <br />Page 5 of 9