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www.eneriDlab.com <br />( <br />Helena, MT 877 -472 -0711 - Billings, W 600 -735 -4469 - Casper, WY 888- 235 -0515 <br />Gillette, WY 866- 686 -7175 - <br />Rapid City, SD 888 - 672 -1225 - College Station, TX 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY <br />Branch <br />Client: Cotter Corporation <br />Report Date: <br />02/26/14 <br />Project: Schwartz - GW 2/5/14 S27350 <br />Work Order: <br />C14020159 <br />Analyte <br />Count Result Units <br />RL <br />° /.REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: <br />E200.8 <br />Analytical Run: ICPMS2- C_140221A <br />Sample ID: <br />ICV <br />3 Initial Calibration Verification Standard <br />02/21/14 13:29 <br />Antimony <br />0.0522 mg /L <br />0.0010 <br />104 <br />90 110 <br />Copper <br />0.0495 mg /L <br />0.0010 <br />99 <br />90 110 <br />Thallium <br />0.0493 mg /L <br />00010 <br />99 <br />90 110 <br />Method: <br />E200.8 <br />Batch: R183881 <br />Sample ID: <br />LRB <br />3 Method Blank <br />Run: ICPMS2 -C 140221A <br />02/21/14 14:15 <br />Antimony <br />0.0001 mg /L <br />6E -05 <br />Copper <br />ND mg /L <br />0.0001 <br />Thallium <br />ND mg /L <br />9E -06 <br />Sample ID: <br />LFB <br />3 Laboratory Fortified Blank <br />Run. ICPMS2- C_140221A <br />02/21/14 14:18 <br />Antimony <br />0.0481 mg /L <br />0.0010 <br />96 <br />85 115 <br />Copper <br />0.0533 mg /L <br />0.0010 <br />107 <br />85 115 <br />Thallium <br />0.0532 mg /L <br />0.0010 <br />106 <br />85 115 <br />Sample ID: <br />C14020159- 001CMS4 <br />3 Sample Matrix Spike <br />Run: ICPMS2- C_140221A <br />02/21/14 21:28 <br />Antimony <br />0.0608 mg /L <br />0.0010 <br />121 <br />70 130 <br />Copper <br />0.0514 mg /L <br />0.0050 <br />94 <br />70 130 <br />Thallium <br />0.0531 mg /L <br />0.00050 <br />106 <br />70 130 <br />Sample ID: <br />C14020159- 001CMSD4 <br />3 Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_140221A <br />02/21/14 21:32 <br />Antimony <br />0.0620 mg /L <br />0.0010 <br />123 <br />70 130 1.8 <br />20 <br />Copper <br />0.0527 mg /L <br />0.0050 <br />96 <br />70 130 2.6 <br />20 <br />Thallium <br />0.0544 mg /L <br />0.00050 <br />109 <br />70 130 2.5 <br />20 <br />Method: <br />E200.8 <br />Analytical Run: ICPMS4- C_140213A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />02/13/14 16 20 <br />Silver <br />0.0187 mg /L <br />0.0010 <br />94 <br />90 110 <br />Method: <br />E200.8 <br />Batch: 40564 <br />Sample ID: <br />MB -40564 <br />Method Blank <br />Run: ICPMS4- C_140213A <br />02/14/14 01:07 <br />Silver <br />ND mg /L <br />0.0002 <br />Sample ID: <br />LCS3 -40564 <br />Laboratory Control Sample <br />Run: ICPMS4- C_140213A <br />02/14/14 01.11 <br />Silver <br />0.0475 mg /L <br />0.0010 <br />95 <br />85 115 <br />Sample ID: <br />C14020127 -001 DMS3 <br />Sample Matrix Spike <br />Run: ICPMS4- C_140213A <br />02/14/14 01:28 <br />Silver <br />0.0415 mg /L <br />0.0010 <br />83 <br />70 130 <br />Sample ID: <br />C14020127 -001 DMSD3 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_140213A <br />02/14/14 01:31 <br />Silver <br />00422 mg /L <br />0.0010 <br />84 <br />70 130 1.6 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 11 of 20 <br />