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r Trust our People.Trust our Data. Billings.MT800.735.4489•Casper,WY888.235.0515 <br /> College Station,TX 888.690.2218•Gillette,WY 866.686.7175•Helena,MT 877.472.0711 <br /> QA/QC Summary Report <br /> Prepared by Casper,WY Branch <br /> Revised Date: 09/29/16 <br /> Client: Cotter Corporation Report Date: 08/25/16 <br /> Project: Schwartz- GW 8/10/16 S29185 Work Order: C16080554 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.8 Analytical Run:ICPMS4-C_160818A <br /> Lab ID: ICV 7 Initial Calibration Verification Standard 08/18/16 14:08 <br /> Aluminum 0.0495 mg/L 0.0010 99 90 110 <br /> Antimony 0.0507 mg/L 0.0010 101 90 110 <br /> Boron 0.983 mg/L 0.0010 98 90 110 <br /> Chromium 0.0505 mg/L 0.0010 101 90 110 <br /> Copper 0.0494 mg/L 0.0010 99 90 110 <br /> Silver 0.0184 mg/L 0.0010 92 90 110 <br /> Thallium 0.0497 mg/L 0.0010 99 90 110 <br /> Method: E200.8 Batch:48124 <br /> Lab ID: MB-48124 7 Method Blank Run: ICPMS4-C_160818A 08/18/16 15:32 <br /> Aluminum 0.001 mg/L 0.0001 <br /> Antimony ND mg/L 5E-05 <br /> Boron ND mg/L 0.0010 <br /> Chromium ND mg/L 2E-05 <br /> Copper 0.0004 mg/L 3E-05 <br /> Silver ND mg/L 5E-05 <br /> Thallium ND mg/L 2E-05 <br /> Lab ID: LCS3-48124 7 Laboratory Control Sample Run: ICPMS4-C_160818A 08/18/16 15:39 <br /> Aluminum 2.54 mg/L 0.030 101 85 115 <br /> Antimony 0.536 mg/L 0.0010 107 85 115 <br /> Boron 0.523 mg/L 0.050 105 85 115 <br /> Chromium 0.509 mg/L 0.0050 102 85 115 <br /> Copper 0.498 mg/L 0.0050 100 85 115 <br /> Silver 0.0436 mg/L 0.0010 87 85 115 <br /> Thallium 0.544 mg/L 0.00050 109 85 115 <br /> Lab ID: C16080532-001AMS3 7 Sample Matrix Spike Run:ICPMS4-C_160818A 08/18/16 16:56 <br /> Aluminum 2.46 mg/L 0.030 98 70 130 <br /> Antimony 0.600 mg/L 0.0010 120 70 130 <br /> Boron 0.525 mg/L 0.050 99 70 130 <br /> Chromium 0.504 mg/L 0.0050 101 70 130 <br /> Copper 0.623 mg/L 0.0050 125 70 130 <br /> Silver 0.0478 mg/L 0.0010 96 70 130 <br /> Thallium 0.553 mg/L 0.00050 111 70 130 <br /> Lab ID: C16080532-001AMSD 7 Sample Matrix Spike Duplicate Run: ICPMS4-C_160818A 08/18/16 17:02 <br /> Aluminum 2.51 mg/L 0.030 100 70 130 2.0 20 <br /> Antimony 0.605 mg/L 0.0010 121 70 130 0.8 20 <br /> Boron 0.542 mg/L 0.050 102 70 130 3.1 20 <br /> Chromium 0.524 mg/L 0.0050 105 70 130 4.0 20 <br /> Copper 0.628 mg/L 0.0050 126 70 130 0.8 20 <br /> Silver 0.0509 mg/L 0.0010 102 70 130 6.2 20 <br /> Thallium 0.562 mg/L 0.00050 112 70 130 1.5 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 6 of 13 <br />