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ENERGY <br />Client: Cotter Corporation <br />Project: Schwartz GW 8/11/11 S25164 <br />Analyte <br />Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E903.0 <br />Sample ID: C11080593 -001 EMS <br />Radium 226 <br />www.energylab.com <br />Amity** fteir felt <br />Sample Matrix Spike <br />13 pCi /L <br />Sample ID: C11080593 -001 EMSD Sample Matrix Spike Duplicate <br />Radium 226 <br />Sample ID: MB -RA226 -5568 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS -RA226 -5568 Laboratory Control Sample <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />3 Method Blank <br />-0.007 pCi /L <br />0.10 pCi /L <br />0.2 pCi /L <br />Helene, MT 877- 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 - 686 -7175 • Rapid City, SD 888 - 672 -1225 • college Station, TX 888 -690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />15 pCi /L <br />Run: G542M_110819B <br />89 70 130 <br />Run: G542M_110819B <br />101 70 130 12 24.6 <br />Run: G542M_110819B <br />Radium 226 7.2 pCi /L 102 85 115 <br />Report Date: 09/22/11 <br />Work Order: C11080593 <br />Run: G542M_110819B 08/27/11 20:10 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Batch: RA226 -5568 <br />08/27/11 13:09 <br />Page 16 of 19 <br />08/27/11 13:09 <br />08/27/11 20:10 <br />U <br />