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ENERGY <br />LABORATORIES <br />Client: Cotter Corporation <br />Project: Schwartz SW 7/27/11 S25889-S25896 <br />Analyte <br />Count Result Units <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: RA -05 <br />Sample ID: LCS- 228 -RA226 -5551 <br />Radium 228 <br />Sample ID: MB - RA226 - 5551 <br />Radium 228 <br />Radium 228 precision ( ±) <br />Radium 228 MDC <br />Sample ID: C11071095 002AMS <br />Radium 228 <br />Sample ID: C1 1 071 095 002AMSD <br />Radium 228 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />www.energyiab.com <br />Analytical Excellence Shemin.? <br />Laboratory Control Sample <br />6.89 pCi /L <br />3 Method Blank <br />-0.357 <br />0.599 <br />1.04 <br />pCi /L <br />pCi /L <br />pCi /L <br />Sample Matrix Spike <br />14.6 pCi /L <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Sample Matrix Spike Duplicate <br />14.9 pCi /L <br />Helena, MT 877- 472 -0711 • Billings, MT B00 -735 -4489 • Casper, WY 868- 235 -0515 <br />Gillette, WY 866 -686 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 -690 -2218 <br />Run: TENNELEC- 3_110808A <br />110. 80 120 <br />Run: TENNELEC- 3_110808A <br />Run: TENNELEC- 3_110808A <br />99 70 130 <br />Run: TENNELEC- 3_110808A <br />101 70 130 2.1 <br />Report Date: 09/06/11 <br />Work Order: C11071053 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Batch: RA228 -3839 <br />08/22/11 14:05 <br />Page 28 of 39 <br />08/22/11 14:05 <br />U <br />08/22/11 14:05 <br />08/22/11 14:05 <br />35 <br />