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www.ane &ob.com Helena, MT 877- 472 -0711 a Billings, MT 600- 735 -4469 a Casper, WY 888 -235 -8515 <br />Gillette, WY 888 -686 -7175 a Rapid City, SD 888- 672 -1225 a College Station, T% 888- 690 -2218 <br />QA / QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />10/15/13 <br />Project: Schwartz SW 9/10/13 S27157 <br />Work Order: <br />C13090392 <br />F alyte <br />Count Result Units <br />RL <br />° /GREC <br />Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: E353.2 <br />Analytical Run: SUB - 13211759 <br />Sample ID: ICV <br />Initial Calibration Verification Standard <br />09/17/13 10:11 <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 R211759 <br />Sample ID: MBLK <br />Method Blank <br />Run: SUB - 13211759 <br />09/17/13 10 12 <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />0.001 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: SUB- B211759 <br />09/17/13 10:13 <br />Nitrogen, Nitrate +Nitrite as N <br />0.994 mg /L <br />0.010 <br />99 <br />90 <br />110 <br />Sample ID: B13091112- 001AMS <br />Sample Matrix Spike <br />Run: SUB - 13211759 <br />09/17/13 12:41 <br />Nitrogen, Nitrate +Nitrite as N <br />1.63 mg /L <br />0.010 <br />101 <br />90 <br />110 <br />Sample ID: B13091112- 001AMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB - 13211759 <br />09/17/13 12:43 <br />Nitrogen, Nitrate +Nitrite as N <br />1.64 mg /L <br />0.010 <br />101 <br />90 <br />110 0.3 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 19 of 26 <br />