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www.enerdab.com Helena, MT 871472 -0711 • Billings, MT 800 - 7354488 • Casper, WY 888- 235 -0515 <br />AnAWN S°C° log J 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 <br />Project: Schwartz -GW 9/11/14 S27683 and S27684 <br />Analyte Count Result Units <br />Method: E200.7 <br />Report Date: 09/30/14 <br />Work Order: C14090497 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: ICP2- C_140917A <br />Lab ID: ICV <br />4 Initial Calibration Verification Standard <br />Aluminum <br />ND mg /L <br />09/17/14 11:43 <br />Aluminum <br />5.01 mg /L <br />0.10 <br />100 <br />95 <br />105 <br />Iron <br />5.04 mg /L <br />0.030 <br />101 <br />95 <br />105 <br />Manganese <br />4.97 mg /L <br />0.010 <br />99 <br />95 <br />105 <br />Zinc <br />1.00 mg /L <br />0.010 <br />100 <br />95 <br />105 <br />Lab ID: ICSA <br />4 Interference Check Sample A <br />4 Sample Matrix Spike Duplicate <br />Aluminum <br />2.6 mg /L <br />09/17/14 12:11 <br />Aluminum <br />508 mg /L <br />0.10 <br />102 <br />80 <br />120 <br />Iron <br />185 mg /L <br />0.030 <br />93 <br />80 <br />120 <br />Manganese <br />- 0.00200 mg /L <br />0.010 <br />Zinc <br />- 0.0102 mg /L <br />0.010 <br />Lab ID: ICSAB <br />4 Interference Check Sample AB <br />09/17/14 12:15 <br />Aluminum <br />507 mg /L <br />0.10 <br />101 <br />80 <br />120 <br />Iron <br />185 mg /L <br />0.030 <br />92 <br />80 <br />120 <br />Manganese <br />0.492 mg /L <br />0.010 <br />98 <br />80 <br />120 <br />Zinc <br />1.00 mg /L <br />0.010 <br />100 <br />80 <br />120 <br />Method: E200.7 <br />Lab ID: MB -42613 <br />4 Method Blank <br />Aluminum <br />ND mg /L <br />Iron <br />ND mg /L <br />Manganese <br />ND mg /L <br />Zinc <br />ND mg /L <br />Lab ID: LCS3 -42613 <br />4 Laboratory Control Sample <br />Aluminum <br />2.62 mg /L <br />Iron <br />2.55 mg /L <br />Manganese <br />2.56 mg /L <br />Zinc <br />0.518 mg /L <br />Lab ID: 014090454- 001CMS3 <br />4 Sample Matrix Spike <br />Aluminum <br />3.3 mg /L <br />Iron <br />3.2 mg /L <br />Manganese <br />3.2 mg /L <br />Zinc <br />0.69 mg /L <br />Lab ID: C14090454- 001CMSD <br />4 Sample Matrix Spike Duplicate <br />Aluminum <br />2.6 mg /L <br />Iron <br />2.6 mg /L <br />Manganese <br />2.6 mg /L <br />Zinc <br />0.56 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />S - Spike recovery outside of advisory limits. <br />Run: ICP2 -C 140917A <br />0.01 <br />0.005 <br />0.0003 <br />0.002 <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />21 <br />21 <br />22 <br />21 <br />Batch: 42613 <br />09/17/14 17:58 <br />09/17/14 18:02 <br />09/17/14 18:22 <br />S <br />S <br />09/17/14 18:26 <br />20 R <br />20 R <br />20 R <br />20 R <br />Page 9 of 25 <br />Run: ICP2- C_140917A <br />0.030 <br />105 <br />85 115 <br />0.030 <br />102 <br />85 115 <br />0.0010 <br />103 <br />85 115 <br />0.010 <br />104 <br />85 115 <br />Run: ICP2- C_140917A <br />0.030 <br />131 <br />70 130 <br />0.030 <br />128 <br />70 130 <br />0.0010 <br />128 <br />70 130 <br />0.010 <br />131 <br />70 130 <br />Run: ICP2- C_140917A <br />0.030 <br />105 <br />70 130 <br />0.030 <br />104 <br />70 130 <br />0.0010 <br />102 <br />70 130 <br />0.010 <br />105 <br />70 130 <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />21 <br />21 <br />22 <br />21 <br />Batch: 42613 <br />09/17/14 17:58 <br />09/17/14 18:02 <br />09/17/14 18:22 <br />S <br />S <br />09/17/14 18:26 <br />20 R <br />20 R <br />20 R <br />20 R <br />Page 9 of 25 <br />