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• www.enerdab.com I Helena, MT 877- 472 -0711 • Billings, W 808 -735 -4489 • Casper, WY 888 - 235 -6515 <br />�r EmNnes S m 1132 Gillette, WY 866 -666 -7175 • Rapid City, SO 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 />Project: Schwartz GW 5/20/13 S26987 & S26988 <br />Analyte <br />Count Result Units <br />Method: E353.2 <br />Sample ID: MBLK -1 <br />Method Blank <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />Sample ID: LF13-3 <br />Laboratory Fortified Blank <br />Nitrogen. Nitrate +Nitrite as N <br />2.03 mg /L <br />Sample ID: C13050751- 001CMS <br />Sample Matrix Spike <br />Nitrogen, Nitrate +Nitrite as N <br />2.28 mg /L <br />Sample ID: C13050751- 001CMSD <br />Sample Matrix Spike Duplicate <br />Nitrogen, Nitrate +Nitrite as N <br />2.30 mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Report Date: 06/13/13 <br />Work Order: C13050760 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: R173956 <br />Run: TECHNICON_130523A 05/23/13 10:37 <br />0.02 <br />Run: TECHNICON_130523A 05/23/13 10:42 <br />0.10 104 90 110 <br />Run: TECHNICON_130523A 05/23/13 10:47 <br />0.10 107 90 110 <br />Run. TECHNICON_130523A 05/23/13 10:50 <br />0.10 108 90 110 0.9 10 <br />ND - Not detected at the reporting limit. <br />Page 17 of 24 <br />