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ENERGY <br />A1- 3(.}44AI OFQ I�'3 <br />tom' <br />Client: Cotter Corporation <br />Project: Schwartz -SW 9/05/12 S26562 <br />Analyte Count <br />Method: E903.0 <br />Sample ID: C12090061- 001EMS <br />Radium 226 <br />Sample ID: C12090061- 001EMSD <br />Radium 226 <br />Sample ID: MB -RA226 -6217 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS -RA226 -6217 Laboratory Control Sample Run: BERTHOLD 770- 1_120907A 09/26/12 13:53 <br />Radium 226 8.1 pCi /L 129 80 120 S <br />- LCS response is outside of the acceptance range for this analysis Since the MB. MS, and MSD are acceptable the batch is approved <br />Method: E903.0 <br />Sample ID: C12090138 -001 FMS <br />Radium 226 <br />Sample ID: C12090138 -001 FMSD <br />Radium 226 <br />Sample ID: MB -RA226 -6223 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS -RA226 -6223 <br />Radium 226 <br />www.energylab.com <br />Analytical Erc deco siac. aria <br />Result Units <br />Sample Matrix Spike <br />28 pCi /L <br />Sample Matrix Spike Duplicate <br />26 pCi /L <br />3 Method Blank <br />-0.06 <br />0.1 <br />0.2 <br />pCi /L <br />pCi /L <br />pCi /L <br />Sample Matrix Spike <br />12 pCi /L <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />3 Method Blank <br />0.1 <br />0.09 <br />0.1 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />Sample Matrix Spike Duplicate <br />11 pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />Laboratory Control Sample <br />6.4 pCi /L <br />Helena, MT 877 472 - 0711 • Billings, MT 800 - 735 - 4489 • Casper, WY 888 235 - 0515 <br />Gillette, WY 866 - 686 - 7175 • Rapid City, SO 888 672 - 1225 • College Station, TX 888 - 690 - 2218 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Run: BERTHOLD 770- 1_120907A <br />92 70 130 <br />Run: BERTHOLD 770- 1_120907A 09/26/12 10:25 <br />74 70 130 8.6 21.9 <br />Run: BERTHOLD 770- 1_120907A <br />Run: BERTHOLD 770- 1_120911A <br />95 70 130 <br />Run: BERTHOLD 770- 1_120911A <br />87 70 130 9.7 <br />Run: BERTHOLD 770- 1_120911A <br />Run: BERTHOLD 770- 1_120911A 09/19/12 02 <br />100 80 120 <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Report Date: 10/02/12 <br />Work Order: C12090140 <br />Batch RA226 -6255 <br />09/26/12 10:25 <br />09/26/12 13:53 <br />U <br />Batch: RA226 -6223 <br />09/19/12 00:10 <br />09/19/12 02.07 <br />25.2 <br />09/19/12 02:07 <br />U <br />Page 24 of 28 <br />