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ENERGY , + TrustourPeople.TrustourAata. r Billings,MT 800.735.4489•Casper,WY 888.235.0515 <br /> �-�- l College Station.TX 888.690.2218•Gillette,WY 866.686.1115•Helena,MT 877.412.0111 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 02/26/16 <br /> Project: Schwartz- SW 02/05/16 S28653-S28656 Work Order: C16020243 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.8 Analytical Run. ICPMS4-C_160217A <br /> Lab ID: ICV 5 Initial Calibration Verification Standard 02/17/16 12.53 <br /> Antimony 0.0484 mg/L 0.0010 97 90 110 <br /> Chromium 0.0502 mg/L 0.0010 100 90 110 <br /> Copper 0.0510 mg/L 0.0010 102 90 110 <br /> Silver 0.0218 mg/L 0.0010 109 90 110 <br /> Thallium 0.0494 mg/L 0.0010 99 90 110 <br /> Lab ID: ICV 5 Initial Calibration Verification Standard 02/18/16 11.59 <br /> Antimony 0 0483 mg/L 0.0010 97 90 110 <br /> Chromium 0.0509 mg/L 0.0010 102 90 110 <br /> Copper 0 0514 mg/L 0.0010 103 90 110 <br /> Silver 0.0215 mg/L 0.0010 108 90 110 <br /> Thallium 0.0493 mg/L 0.0010 99 90 110 <br /> Method: E200.8 Batch'46811 <br /> Lab ID: MB-46811 5 Method Blank Run• ICPMS4-C 160217A 02/17/16 23:50 <br /> Antimony 0.0001 mg/L 5E-05 <br /> Chromium 0.0001 mg/L 2E-05 <br /> Copper 0.0002 mg/L 2E-05 <br /> Silver ND mg/L 5E-05 <br /> Thallium ND mg/L 2E-05 <br /> Lab ID: LCS3-46811 5 Laboratory Control Sample Run: ICPMS4-C_160217A 02/17/16 23:55 <br /> Antimony 0.525 mg/L 0.0010 105 85 115 <br /> Chromium 0.518 mg/L 0.0050 104 85 115 <br /> Copper 0.545 mg/L 0.0050 109 85 115 <br /> Silver 0.0487 mg/L 0.0010 97 85 115 <br /> Thallium 0.468 mg/L 0.00050 94 85 115 <br /> Lab ID: C16020256-010AMS3 5 Sample Matrix Spike Run' ICPMS4-C_160217A 02/18/16 00:21 <br /> Antimony 0 546 mg/L 0.0010 109 70 130 <br /> Chromium 0.512 mg/L 0.0050 102 70 130 <br /> Copper 1.17 mg/L 0.0050 96 70 130 <br /> Silver 0.0486 mg/L 0 0010 97 70 130 <br /> Thallium 0.466 mg/L 0 00050 93 70 130 <br /> Lab ID: C16020256-010AMSD 5 Sample Matrix Spike Duplicate Run: ICPMS4-C_160217A 02/18/16 00:26 <br /> Antimony 0.551 mg/L 0.0010 110 70 130 0.8 20 <br /> Chromium 0.509 mg/L 0.0050 102 70 130 0.7 20 <br /> Copper 1.15 mg/L 0.0050 93 70 130 1.6 20 <br /> Silver 0.0489 mg/L 0.0010 98 70 130 0.6 20 <br /> Thallium 0.458 mg/L 0.00050 92 70 130 1.8 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 9 of 20 <br />