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• ra www.energylab.com r Helena, MY 977- 472 -0711 • Billings, W DOD- 735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -666 -7175 • Rapid City, SD 886 -672 -1225 • College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: 05/06/13 <br />Project: Schwartz GW 4/11/13 S26889 Work Order: C13040486 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDL1mit Qual <br />Method: E200.8 <br />Analytical Run: ICPMS4- C_130425A <br />Sample ID: ICV <br />Initial Calibration Verification Standard 04/25/13 13:37 <br />Silver <br />00200 mg /L 0.0010 100 90 110 <br />Method: E200.8 <br />Batch: 37226 <br />Sample ID: MB -37226 <br />Method Blank Run: ICPMS4- C_130425A 04/25/13 19:59 <br />Silver <br />ND mg /L 8E -05 <br />Sample ID: LCS3 -37226 <br />Laboratory Control Sample Run: ICPMS4- C_130425A 04/25/13 20:03 <br />Silver <br />0.0540 mg /L 0.0010 108 85 115 <br />Sample ID: 013040547 -001 CMS3 <br />Sample Matrix Spike Run: ICPMS4- C_130425A 04/25/13 20:24 <br />Silver <br />0.0486 mg /L 0.0010 97 70 130 <br />Sample ID: C13040547 -001 CMSD <br />Sample Matrix Spike Duplicate Run: ICPMS4- C_130425A 04/25/13 20:28 <br />Silver <br />0.0505 mg /L 0.0010 101 70 130 3.8 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 12 of 21 <br />