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www.eweiab.com � Helena, MT 817- 472 -0711 - Billings, NT 808- 735 -4482 a Casper, WY 888 - 235 -0515 <br />g"&I Enabowe Am IZ2 Gillette, WY 866 -686 -7175 - Rapid City, SO 886- 672 -1215 - College Station, T% 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz -SW 8/7/13 S27022 <br />Analyte <br />Count Result Units <br />Method: E353.2 <br />Sample ID: MBLK <br />Method Blank <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Nitrogen, Nitrate +Nitrite as N <br />1 06 mg /L <br />Sample ID: B13081089 -001 CMS <br />Sample Matrix Spike <br />Nitrogen, Nitrate +Nitrite as N <br />2.22 mg /L <br />Sample ID: B13081089 -001 CMSD <br />Sample Matrix Spike Duplicate <br />Nitrogen, Nitrate +Nitrite as N <br />2.20 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Revised Date: 09/12/13 <br />Report Date: 09/05/13 <br />Work Order: C13080331 <br />RL ° /6REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: B R210119 <br />Run: SUB- B210119 08/16/13 08:09 <br />0.001 <br />Run: SUB- B210119 <br />0.010 106 90 110 <br />Run: SUB- B210119 <br />0.010 108 90 110 <br />Run- SUB- B210119 <br />0.010 107 90 110 <br />ND - Not detected at the reporting limit. <br />08/16/13 08:10 <br />08/16/13 08:34 <br />08/16/13 08:35 <br />0.5 10 <br />Page 19 of 26 <br />