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PEW <br />J, www energylab.com f Helena, 141877- 472 -0711 •Billings, MT 800- 735 -4489 •Casper, WY 888- 235 -0515 <br />r ° IM Gillette, WY 866 - 686 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />4 Sample Matrix Spike <br />Batch: 37569 <br />Report Date: <br />06/18/13 <br />Project: Schwartz GW 5/15/2013 S26920 & S26921 <br />2.76 mg /L <br />Run: ICP4- C_130528A 05/28/13 18:36 <br />Aluminum <br />Work Order: <br />C13050697 <br />Analyte <br />Count Result Units <br />RL <br />° /.REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.7 <br />ND mg /L <br />0.0002 <br />0.0010 <br />100 <br />Analytical Run: ICP4- C_130528A <br />Sample ID: ICV <br />4 Initial Calibration Verification Standard <br />Zinc <br />0.541 mg /L <br />Sample ID: LCS3 -37569 <br />05/28/13 11:12 <br />Aluminum <br />5.01 mg /L <br />0.10 <br />100 <br />95 <br />105 <br />109 <br />Iron <br />5.06 mg /L <br />0.030 <br />101 <br />95 <br />105 <br />Manganese <br />Manganese <br />4.84 mg /L <br />0.010 <br />97 <br />95 <br />105 <br />0.010 <br />Zinc <br />0.976 mg /L <br />0.010 <br />98 <br />95 <br />105 <br />99 <br />Sample ID: ICSA <br />4 Interference Check Sample A <br />20 <br />Zinc <br />0.544 mg /L <br />0.010 <br />05/28/13 11:26 <br />Aluminum <br />497 mg /L <br />010 <br />99 <br />80 <br />120 <br />Iron <br />177 mg /L <br />0.030 <br />88 <br />80 <br />120 <br />Manganese <br />0.00778 mg /L <br />0.010 <br />Zinc <br />0.0189 mg /L <br />0.010 <br />Sample ID: ICSAB <br />4 Interference Check Sample AB <br />05/28/13 11 30 <br />Aluminum <br />491 mg /L <br />0.10 <br />98 <br />80 <br />120 <br />Iron <br />180 mg /L <br />0.030 <br />90 <br />80 <br />120 <br />Manganese <br />0.460 mg /L <br />0.010 <br />92 <br />80 <br />120 <br />Zinc <br />0.862 mg /L <br />0.010 <br />86 <br />80 <br />120 <br />Method: E200.7 <br />4 Sample Matrix Spike <br />Batch: 37569 <br />Sample ID: MB -37569 <br />4 Method Blank <br />Aluminum <br />2.76 mg /L <br />Run: ICP4- C_130528A 05/28/13 18:36 <br />Aluminum <br />ND mg /L <br />0.01 <br />Iron <br />Iron <br />ND mg /L <br />0.004 <br />70 130 <br />Manganese <br />ND mg /L <br />0.0002 <br />0.0010 <br />100 <br />Zinc <br />0.004 mg /L <br />0.001 <br />Zinc <br />0.541 mg /L <br />Sample ID: LCS3 -37569 <br />4 Laboratory Control Sample <br />70 130 <br />Run: ICP4- C_130528A 05/28/13 18:39 <br />Aluminum <br />2.72 mg /L <br />0.030 <br />109 <br />85 115 <br />Iron <br />2.58 mg /L <br />0.030 <br />103 <br />85 115 <br />Manganese <br />2.53 mg /L <br />0.0010 <br />101 <br />85 115 <br />Zinc <br />0.499 mg /L <br />0.010 <br />99 <br />85 115 <br />Sample ID: C13050693- 001CMS3 <br />4 Sample Matrix Spike <br />Run: ICP4- C_130528A <br />05/28/13 19:09 <br />Aluminum <br />2.76 mg /L <br />0.030 <br />109 <br />70 130 <br />Iron <br />2.75 mg /L <br />0.030 <br />102 <br />70 130 <br />Manganese <br />2.50 mg /L <br />0.0010 <br />100 <br />70 130 <br />Zinc <br />0.541 mg /L <br />0.010 <br />96 <br />70 130 <br />Sample ID: C13050693 -001 CMSD3 <br />4 Sample Matrix Spike Duplicate <br />Run: ICP4- C_130528A <br />05/28/13 19:12 <br />Aluminum <br />2.69 mg /L <br />0.030 <br />106 <br />70 130 <br />2.7 <br />20 <br />Iron <br />2.72 mg /L <br />0.030 <br />100 <br />70 130 <br />1.3 <br />20 <br />Manganese <br />2.48 mg /L <br />0.0010 <br />99 <br />70 130 <br />0.7 <br />20 <br />Zinc <br />0.544 mg /L <br />0.010 <br />97 <br />70 130 <br />0.7 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 9 of 24 <br />