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www.enereab.com i Helena, MT 877- 472 -0711 • Billings, W 860- 735 -4409 • Casper, WY 888- 235 -0515 <br />Aasrytlat hcabm ftca IM J Gillette, WY 866 -686 -7175 • Rapid City, SO 886- 672 -1225 • College Station, TX 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 12/05/13 <br />Project: Schwartz GW 11/12/13 S27218 Work Order: C13110612 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Analytical Run: ICPMS2- C_131122A <br />Sample ID: ICV 3 Initial Calibration Verification Standard 11/22/13 14:08 <br />Arsenic <br />0.0486 <br />mg /L <br />0.0010 <br />97 <br />Lead <br />0.0486 <br />mg /L <br />0.0010 <br />97 <br />Thallium <br />0.0485 <br />mg /L <br />0.0010 <br />97 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />0.0003 <br />3E -05 <br />0.0001 <br />90 110 <br />90 110 <br />90 110 <br />Batch: 39812 <br />Run: ICPMS2 -C 131122A 11/22/1315:10 <br />Run: ICPMS2- C_131122A 11/22/13 15:13 <br />0.0010 98 85 115 <br />0.0010 103 85 115 <br />0.00050 98 85 115 <br />Run: ICPMS2- C_131122A 11/22/13 15:38 <br />0.0010 98 70 130 <br />0.0010 105 70 130 <br />0.00050 100 70 130 <br />Run: ICPMS2- C_131122A 11/22/13 15:41 <br />0.0010 97 70 130 1.6 20 <br />0.0010 104 70 130 0.7 20 <br />0.00050 100 70 130 0.7 20 <br />ND - Not detected at the reporting limit. <br />Page 10 of 21 <br />Method: <br />E200.8 <br />Sample ID: <br />MB -39812 <br />3 <br />Method Blank <br />Arsenic <br />ND mg /L <br />Lead <br />ND mg /L <br />Thallium <br />ND mg /L <br />Sample ID: <br />LCS3 -39812 <br />3 <br />Laboratory Control Sample <br />Arsenic <br />0.492 mg /L <br />Lead <br />0.517 mg /L <br />Thallium <br />0.491 mg /L <br />Sample ID: <br />C13110616 -001 BMS3 <br />3 <br />Sample Matrix Spike <br />Arsenic <br />0.491 mg /L <br />Lead <br />0.525 mg /L <br />Thallium <br />0.501 mg /L <br />Sample ID: <br />C1 31 1 061 6 -001 BMSD3 <br />3 <br />Sample Matrix Spike Duplicate <br />Arsenic <br />0.483 mg /L <br />Lead <br />0.522 mg /L <br />Thallium <br />0.498 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />0.0003 <br />3E -05 <br />0.0001 <br />90 110 <br />90 110 <br />90 110 <br />Batch: 39812 <br />Run: ICPMS2 -C 131122A 11/22/1315:10 <br />Run: ICPMS2- C_131122A 11/22/13 15:13 <br />0.0010 98 85 115 <br />0.0010 103 85 115 <br />0.00050 98 85 115 <br />Run: ICPMS2- C_131122A 11/22/13 15:38 <br />0.0010 98 70 130 <br />0.0010 105 70 130 <br />0.00050 100 70 130 <br />Run: ICPMS2- C_131122A 11/22/13 15:41 <br />0.0010 97 70 130 1.6 20 <br />0.0010 104 70 130 0.7 20 <br />0.00050 100 70 130 0.7 20 <br />ND - Not detected at the reporting limit. <br />Page 10 of 21 <br />