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www.eneriylab.com Helena,MT 877-472-0711 •Billings,MT 800-735-4489•Casper,WY 888-235-0515 <br /> D.W.A=1952 Gillette,WY 866-686-7175•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: 08/21/14 <br /> Project: Schwartz-GW 7/29/14 S27612 Work Order: C14071021 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.8 Analytical Run: ICPMS4-C_140806A <br /> Lab ID: ICV 2 Initial Calibration Verification Standard 08/06/14 11:55 <br /> Arsenic 0.0494 mg/L 0.0010 99 90 110 <br /> Lead 0.0501 mg/L 0.0010 100 90 110 <br /> Method: E200.8 Batch:42147 <br /> Lab ID: C14071023-001CMS3 2 Sample Matrix Spike Run: ICPMS4-C_140806A 08/06/14 17:22 <br /> Arsenic 0.50 mg/L 0.0010 100 70 130 <br /> Lead 0.51 mg/L 0.0010 102 70 130 <br /> Lab ID: C14071023-001CMSD 2 Sample Matrix Spike Duplicate Run: ICPMS4-C_140806A 08/06/14 17:26 <br /> Arsenic 0.50 mg/L 0.0010 100 70 130 0.3 20 <br /> Lead 0.50 mg/L 0.0010 101 70 130 0.8 20 <br /> Lab ID: MB-42147 2 Method Blank Run: ICPMS4-C 140806A 08/06/14 15:15 <br /> Arsenic ND mg/L 0.0010 <br /> Lead ND mg/L 0.0050 <br /> Lab ID: LCS3-42147 2 Laboratory Control Sample Run: ICPMS4-C_140806A 08/06/14 15:20 <br /> Arsenic 0.51 mg/L 0.0010 102 85 115 <br /> Lead 0.50 mg/L 0.0010 100 85 115 <br /> Method: E200.8 Analytical Run: ICPMS4-C_140813A <br /> Lab ID: ICV 2 Initial Calibration Verification Standard 08/13/14 12:18 <br /> Antimony 0.0517 mg/L 0.0010 103 90 110 <br /> Silver 0.0213 mg/L 0.0010 106 90 110 <br /> Method: E200.8 Batch:42147 <br /> Lab ID: MB-42147 2 Method Blank Run: ICPMS4-C 140813A 08/13/14 22:14 <br /> Antimony 0.0002 mg/L 0.0002 <br /> Silver 0.0006 mg/L 0.0002 <br /> Lab ID: LCS3-42147 2 Laboratory Control Sample Run: ICPMS4-C_140813A 08/13/14 22:18 <br /> Antimony 0.516 mg/L 0.0010 103 85 115 <br /> Silver 0.0576 mg/L 0.0010 114 85 115 <br /> Lab ID: C14071023-001CMS3 2 Sample Matrix Spike Run: ICPMS4-C_140813A 08/13/14 22:57 <br /> Antimony 0.516 mg/L 0.0012 103 70 130 <br /> Silver 0.0417 mg/L 0.0010 83 70 130 <br /> Lab ID: C14071023-001CMSD 2 Sample Matrix Spike Duplicate Run: ICPMS4-C_140813A 08/13/14 23:01 <br /> Antimony 0.529 mg/L 0.0012 106 70 130 2.4 20 <br /> Silver 0.0511 mg/L 0.0010 102 70 130 20 20 R <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration R-RPD exceeds advisory limit. <br /> Page 12 of 22 <br />