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www.energylab.com r Helens, MT 877- 472 -0711 - Billings, MT 800- 735 -4489 - Casper, WY 888 - 235 -0515 <br />Gillette, WY 866 -886 -7175 -Rapid City, SO 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 />Report Date: <br />07/16/13 <br />Project: Schwartz GW 6/20/1 <br />S27008 & S2009 <br />Work Order: <br />C13060813 <br />Analyte <br />Count Result Units <br />RL <br />%REC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E353.2 <br />Analytical Run: SUB- B207208 <br />Sample ID: ICV <br />Initial Calibration Verification Standard <br />06/27/13 09:47 <br />Nitrogen, Nitrate +Nitrite as N <br />22.1 mg /L <br />0.060 <br />101 <br />90 <br />110 <br />Method: E353.2 <br />Batch: B R207208 <br />Sample ID: MBLK <br />Method Blank <br />Run: SUB - 6207208 <br />06/27/13 09:49 <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />0.005 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: SUB- B207208 <br />06/27/13 09:50 <br />Nitrogen, Nitrate +Nitrite as N <br />1.01 mg /L <br />0.010 <br />101 <br />90 <br />110 <br />Sample ID: C13060813 -001G <br />Sample Matrix Spike <br />Run: SUB- B207208 <br />06/27/13 12 16 <br />Nitrogen, Nitrate +Nitrite as N <br />0.985 mg /L <br />0.010 <br />98 <br />90 <br />110 <br />Sample ID: C13060813 -001G <br />Sample Matrix Spike Duplicate <br />Run: SUB- B207208 <br />06/27/13 12:17 <br />Nitrogen, Nitrate +Nitrite as N <br />0.976 mg /L <br />0.010 <br />97 <br />90 <br />110 0.9 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 16 of 23 <br />