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ENERGY <br />Ai -iOHA1 OHIE.S <br />Client: Cotter Corporation <br />Project: Schwartz GW 4/20/11 S25759- S25760 <br />Analyte <br />Count Result Units <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E900.0 <br />Sample ID: MB -GrAB -1077 <br />Gross Alpha <br />Gross Alpha precision ( ±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision ( ±) <br />Gross Beta MDC <br />www.energjriab.com <br />Mettles; Embers 1931 J I <br />6 Method Blank <br />- 2 <br />0.7 <br />1 <br />-0.7 <br />1 <br />2 <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />pCi /L <br />Sample ID: Th230 -GrAB -1077 Laboratory Control Sample <br />Gross Alpha 90.3 pCi /L <br />Sample ID: Cs137 -GrAB -1077 Laboratory Control Sample <br />Gross Beta 94.3 pCi /L <br />Sample ID: C11040710- 001AMS Sample Matrix Spike <br />Gross Alpha 107 pCi /L <br />Sample ID: C11040710- 001AMSD Sample Matrix Spike Duplicate <br />Gross Alpha 107 pCi /L <br />Sample ID: C11040710- 001AMS Sample Matrix Spike <br />Gross Beta 91.0 pCi /L <br />Sample ID: C11040710- 001AMSD Sample Matrix Spike Duplicate <br />Gross Beta 94.7 pCi /L <br />Sample ID: C11040774 -005ADUP 6 Sample Duplicate <br />Gross Alpha <br />Gross Alpha precision ( ±) <br />Gross Alpha MDC <br />Gross Beta <br />Gross Beta precision ( ±) <br />Gross Beta MDC <br />5.88 pCi /L <br />5.81 pCi /L <br />9.18 pCi /L <br />2.36 pCi /L <br />2.66 pCi /L <br />4.39 pCi /L <br />- The Sample and the Duplicate are both below the MDC; the RPD is acceptable. <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <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, 1X 888- 690 - 2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Run: G542M 110428A <br />Run: G542M_110428A <br />90 80 120 <br />Run: G542M_110428A <br />108 80 120 <br />Run: G542M_110428A <br />104 70 130 <br />Run: G542M_110428A <br />104 70 130 0.0 <br />Run: G542M_110428A <br />99 70 130 <br />Run: G542M_110428A <br />103 70 130 <br />Run: G542M_110428A <br />Report Date: 05/19/11 <br />Work Order: C11040679 <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />Batch: GrAB -1077 <br />05/04/11 00:02 <br />U <br />U <br />05/04/11 00:02 <br />05/04/11 00:02 <br />05/04/11 12:18 <br />05/04/11 12:18 <br />17.7 <br />05/04/11 12:18 <br />05/04/11 12:18 <br />4.0 15.8 <br />05/04/11 12:18 <br />2000 174.3 UR <br />500 299 UR <br />Page 17 of 23 <br />