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www.enerdab.com Helena, MT 877 - 472 -0711 • Billings, MIT 800- 735 -4488 • Casper, WY 888 - 235 -0515 <br />ANOW&CAftm Al IN2 Gillette, WY 866 - 686 -1175 • Rapid City, SD 888 - 672.1225 • College Station, TX 888 -680 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -GW 9/10/14 S27680,S27681 <br />Analyte Count Result Units <br />Method: E200.8 <br />Report Date: 09/30/14 <br />Work Order: 014090456 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: ICPMS2- C_140923A <br />Lab ID: ICV Initial Calibration Verification Standard 09/23/14 13:47 <br />Silver 0.0204 mg /L 0.0010 102 90 110 <br />Method: <br />E200.8 <br />Lab ID: <br />MB -42613 <br />Method Blank <br />Run: ICPMS2 -C 140923A <br />Silver <br />ND mg /L <br />2E -05 <br />Lab ID: <br />LCS3 -42613 <br />Laboratory Control Sample <br />Run: ICPMS2- C_140923A <br />Silver <br />0.0511 mg /L <br />0.0010 <br />102 85 115 <br />Lab ID: <br />C14090454- 001CMS3 <br />Sample Matrix Spike <br />Run: ICPMS2- C_140923A <br />Silver <br />0.0620 mg /L <br />0.0010 <br />124 70 130 <br />Lab ID: <br />014090454- 001CMSD <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_140923A <br />Silver <br />0.0500 mg /L <br />0.0010 <br />100 70 130 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />Batch: 42613 <br />09/23/14 15:41 <br />09/23/14 15:44 <br />09/23/14 16:29 <br />09/23/14 16:32 <br />21 20 R <br />Page 12 of 25 <br />