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Trust our People.Trust our Data. Billings, MT 800.735.4489 • Casper. Wy 888.235.0515 <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 />Client: Cotter Corporation <br />Project: Schwartz -SW 3/3/15 S28121,S28124 <br />Analyte Count Result Units <br />Method: E200.8 <br />Report Date: 03/30/15 <br />Work Order: C15030087 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: ICPMS2-C_150309A <br />Lab ID: ICV 6 Initial Calibration Verification Standard 03/09/15 15:06 <br />Aluminum <br />0.0506 <br />mg/L <br />0.0010 <br />101 <br />90 <br />110 <br />Antimony <br />0.0487 <br />mg/L <br />0.0010 <br />97 <br />90 <br />110 <br />Chromium <br />0.0505 <br />mg/L <br />0.0010 <br />101 <br />90 <br />110 <br />Copper <br />0.0520 <br />mg/L <br />0.0010 <br />104 <br />90 <br />110 <br />Silver <br />0.0200 <br />mg/L <br />0.0010 <br />100 <br />90 <br />110 <br />Thallium <br />0.0502 <br />mg/L <br />0.0010 <br />100 <br />90 <br />110 <br />Method: <br />E200.8 <br />Lab ID: <br />MB -44088 <br />6 Method Blank <br />Aluminum <br />0.002 mg/L <br />Antimony <br />ICPMS2-C <br />ND mg/L <br />Chromium <br />03/09/1518:14 <br />0.0006 mg/L <br />Copper <br />ND mg/L <br />Silver <br />0.0002 mg/L <br />Thallium <br />0.001 mg/L <br />Lab ID: <br />LCS3-44088 <br />6 Laboratory Control Sample <br />Aluminum <br />0.0002 <br />2.38 mg/L <br />Antimony <br />0.528 mg/L <br />Chromium <br />0.488 mg/L <br />Copper <br />0.452 mg/L <br />Silver <br />0.0494 mg/L <br />Thallium <br />0.523 mg/L <br />Lab ID: <br />C15030087-001CMS3 <br />6 Sample Matrix Spike <br />Aluminum <br />0.0001 <br />2.36 mg/L <br />Antimony <br />0.536 mg/L <br />Chromium <br />0.495 mg/L <br />Copper <br />Run: <br />0.442 mg/L <br />Silver <br />0.0474 mg/L <br />Thallium <br />95 <br />0.523 mg/L <br />Lab ID: <br />C15030087-001CMSD <br />6 Sample Matrix Spike Duplicate <br />Aluminum <br />0.0010 <br />2.34 mg/L <br />Antimony <br />85 <br />0.540 mg/L <br />Chromium <br />0.492 mg/L <br />Copper <br />0.445 mg/L <br />Silver <br />0.0482 mg/L <br />Thallium <br />90 <br />0.516 mg/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 8 of 18 <br />Batch: 44088 <br />Run: <br />ICPMS2-C <br />150309A <br />03/09/1518:14 <br />0.0005 <br />0.0002 <br />0.0002 <br />0.0004 <br />2E-05 <br />0.0001 <br />Run: <br />ICPMS2-C_150309A <br />03/09/1518:18 <br />0.030 <br />95 <br />85 <br />115 <br />0.0010 <br />106 <br />85 <br />115 <br />0.0050 <br />97 <br />85 <br />115 <br />0.0050 <br />90 <br />85 <br />115 <br />0.0010 <br />98 <br />85 <br />115 <br />0.00050 <br />104 <br />85 <br />115 <br />Run: <br />ICPMS2-C_150309A <br />03/09/1519:18 <br />0.030 <br />94 <br />70 <br />130 <br />0.0010 <br />107 <br />70 <br />130 <br />0.0050 <br />99 <br />70 <br />130 <br />0.0050 <br />88 <br />70 <br />130 <br />0.0010 <br />95 <br />70 <br />130 <br />0.00050 <br />105 <br />70 <br />130 <br />Run: <br />ICPMS2-C_150309A <br />03/09/1519:35 <br />0.030 <br />93 <br />70 <br />130 <br />0.9 <br />20 <br />0.0010 <br />108 <br />70 <br />130 <br />0.8 <br />20 <br />0.0050 <br />98 <br />70 <br />130 <br />0.7 <br />20 <br />0.0050 <br />89 <br />70 <br />130 <br />0.8 <br />20 <br />0.0010 <br />96 <br />70 <br />130 <br />1.6 <br />20 <br />0.00050 <br />103 <br />70 <br />130 <br />1.3 <br />20 <br />ND - Not detected at the reporting limit. <br />Page 8 of 18 <br />