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wwwAnergyleb.som <br />AUAp"fecMiwarAw IAV _ <br />8J7 X72-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0513 <br />1?k15Y!'Rapid CO, So OBB-672-1225 • College Station, TX 888-6110-2215 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Sampling Program Discharge <br />Analyte Count Result Units <br />Method: RA-05 <br />Sample ID: LCS-228-RA226-5057 Laboratory Control Sample <br />Radium 228 8.1 pCi/L <br />Sample ID: MB-RA226-5057 3 Method Blank <br />Radium 228 0.14 pCi/L <br />Radium 228 precision (±? 0.62 pCi/L <br />Radium 228 MDC 1.0 pCi/L <br />Sample ID: 010120237-001GMS Sample Matrix Spike <br />Radium 228 17 pCi/L <br />Sample ID: C10120237-001GMSD Sample Matrix Spike Duplicate <br />Radium 228 17 pCi/L <br />Report Date: 12/28/10 <br />Work Order: C10110696 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: RA228-3525 <br />Run: TENNELEC-3_101213C 12/17/10 11:39 <br />111 70 130 <br />Run: TENNELEC-3_101213C 12/17/10 11:39 <br />U <br />Run: TENNELEC-3 101213C 12/17/10 11:39 <br />94 70 130 <br />Run: TENNELEC-3_101213C 12/17/10 11:39 <br />98 70 130 2.9 31.5 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration U - Not detected at minimum detectable concentration <br />Page 6 of 8