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_ ..__ <br />• - www.ene 6ob.corn - - -- Helena, MT 877- 472 -0711 - Billings, MT 800- 735 -4489 - Casper, WY 888- 235 -8515 <br />Auytlal6aeshowSA+ IAl Gillette, WY 866-6B6-7175 - 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 Report Date: 12/03/13 <br />Project: Schwartz SW 11/06/13 S27254 Work Order: C13110376 <br />Analyte Count Result Units RL /diEC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_131113A <br />Sample ID: ICV Initial Calibration Verification Standard 11/13/13 14:33 <br />Mercury 0.00504 mg /L 0.00010 101 90 110 <br />Method: E245.1 Batch: 131113A <br />Sample ID: IPC Instrument Performance Check Sample Run: CVAA_C203_131113A 11/13/13 14:37 <br />Mercury 0.00499 mg /L 0.00010 100 95 105 <br />Method: <br />E245.1 <br />Sample ID: <br />MB -39761 <br />Mercury <br />Sample ID: <br />LCS -39761 <br />Mercury <br />Sample ID: <br />013110376- 001DMS <br />Mercury <br />Sample ID: <br />013110376 -001 DMSD <br />Mercury <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Method Blank <br />ND mg /L <br />7E -05 <br />Laboratory Control Sample <br />0.00516 mg /L <br />0.00010 <br />Sample Matrix Spike <br />0.00491 mg /L <br />0.00010 <br />Sample Matrix Spike Duplicate <br />0.00510 mg /L <br />0.00010 <br />Run: CVAA_C203_131113A <br />Run: CVAA_C203_131113A <br />103 85 115 <br />Run: CVAA_C203_131113A <br />98 70 130 <br />Run: CVAA_C203_131113A <br />102 70 130 3.9 <br />ND - Not detected at the reporting limit. <br />Batch: 39761 <br />11/13/13 14:41 <br />11/13/13 14:43 <br />11/13/13 14:47 <br />11/13/13 14:49 <br />10 <br />Page 15 of 24 <br />