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ENERGY <br />Analyte <br />Client: Cotter Corporation <br />Project: Schwartz SW 10/18/2012 S26648 &S26649 &S26650 <br />Method: E903.0 <br />Sample ID: C12100885- 002CMS <br />Radium 226 <br />Sample ID: 012100885- 002CMSD Sample Matrix Spike Duplicate <br />Radium 226 15 pCi /L <br />Sample ID: MB -RA226 -6332 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />www.energylab.com <br />Aeelytyesl Etrellance Since 1952 <br />Count Result Units <br />Sample Matrix Spike <br />15 pCi /L <br />3 Method Blank <br />-0.05 <br />0.2 <br />0.3 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />pCi /L <br />pCi /L <br />pCi /L <br />Sample ID: LCS -RA226 -6332 Laboratory Control Sample <br />Radium 226 3.7 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, SD 888 -672 -1225 • College Station, Tx 888-6911-2218 <br />Run: BERTHOLD 770- 1_121026A <br />106 70 130 <br />Run: BERTHOLD 770- 1_121026A <br />Run: BERTHOLD 770- 1_121026A <br />59 80 120 <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 />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Report Date: 11/26/12 <br />Work Order: C12100885 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: RA226 -6332 <br />11/02/12 08:34 <br />Run: BERTHOLD 770- 1_121026A 11/02/12 08:34 <br />108 70 130 2.0 30 6 <br />11/02/12 11:59 <br />U <br />11/02/12 11 <br />S <br />Page 5of9 <br />