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• r Trust our People.Trust our Data. Billings,MT800.735.4489• Casper,WY 888.235.0515 <br /> 1 `'`0r' F 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 /> Client: Cotter Corporation Report Date: 09/20/16 <br /> Project: Schwartz GW 8-25-16 S29070 Work Order: C16081049 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.8 Analytical Run: ICPMS4-C_160831A <br /> Lab ID: ICV 4 Initial Calibration Verification Standard 08/31/16 16:06 <br /> Aluminum 0.0503 mg/L 0.0010 101 90 110 <br /> Antimony 0.0515 mg/L 0.0010 103 90 110 <br /> Copper 0.0506 mg/L 0.0010 101 90 110 <br /> Silver 0.0190 mg/L 0.0010 95 90 110 <br /> Method: E200.8 Batch:48221 <br /> Lab ID: MB-48221 3 Method Blank Run:ICPMS4-C_160831A 09/01/16 03:25 <br /> Aluminum 0.001 mg/L 0.0001 <br /> Antimony ND mg/L 5E-05 <br /> Silver 0.0009 mg/L 5E-05 <br /> Lab ID: LCS3-48221 3 Laboratory Control Sample Run: ICPMS4-C_160831A 09/01/16 03:31 <br /> Aluminum 2.3 mg/L 0.10 91 85 115 <br /> Antimony 0.55 mg/L 0.0010 110 85 115 <br /> Silver 0.046 mg/L 0.010 90 85 115 <br /> Lab ID: C16081057-001AMS3 3 Sample Matrix Spike Run: ICPMS4-C_160831A 09/01/16 06:35 <br /> Aluminum 2.4 mg/L 0.10 95 70 130 <br /> Antimony 0.57 mg/L 0.0010 115 70 130 <br /> Silver 0.046 mg/L 0.010 93 70 130 <br /> Lab ID: C16081057-001AMSD 3 Sample Matrix Spike Duplicate Run: ICPMS4-C_160831A 09/01/16 06:40 <br /> Aluminum 2.4 mg/L 0.10 95 70 130 0.5 20 <br /> Antimony 0.57 mg/L 0.0010 115 70 130 0.2 20 <br /> Silver 0.050 mg/L 0.010 101 70 130 8.3 20 <br /> Method: E200.8 Analytical Run: ICPMS4-C_160906A <br /> Lab ID: ICV Initial Calibration Verification Standard 09/06/16 12:22 <br /> Thallium 0.0486 mg/L 0.0010 97 90 110 <br /> Method: E200.8 Batch:48242 <br /> Lab ID: MB-48242 Method Blank Run: ICPMS4-C 160906A 09/06/16 14:39 <br /> Thallium ND mg/L 2E-05 <br /> Lab ID: LCS3-48242 Laboratory Control Sample Run:ICPMS4-C_160906A 09/06/16 14:46 <br /> Thallium 0.481 mg/L 0.00050 96 85 115 <br /> Lab ID: C16081088-004AMS3 Sample Matrix Spike Run:ICPMS4-C_160906A 09/06/16 16:31 <br /> Thallium 0.445 mg/L 0.00050 89 70 130 <br /> Lab ID: C16081088-004AMSD Sample Matrix Spike Duplicate Run: ICPMS4-C_160906A 09/06/16 16:36 <br /> Thallium 0.464 mg/L 0.00050 93 70 130 4.1 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 5 of 13 <br />