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®n www.energylab.com Helena, W 677-472 -0711 • Billings, W 800- 735 -4489 • Casper, WY 688 -235 -0515 <br />MiryticslErcaq reSlnce tail 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 Report Date: 02/06/13 <br />Project: Schwartz GW 1/22/13 SSTF: S26783 Work Order: C13010694 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E353.2 Analytical Run: SUB - 13198847 <br />Sample ID: ICV Initial Calibration Verification Standard 01/25/13 09:03 <br />Nitrogen, Nitrate +Nitrite as N 22.0 mg /L 0.060 101 90 110 <br />Method: E353.2 <br />Batch: B_R198847 <br />Sample ID: MBLK <br />Method Blank <br />Run: SUB - 13198847 <br />01/25/13 09:04 <br />Nitrogen, Nitrate +Nitrite as N <br />ND mg /L <br />0.003 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: SUB - 13198847 <br />01/25/13 09:05 <br />Nitrogen, Nitrate +Nitrite as N <br />1.02 mg /L <br />0.010 <br />104 90 110 <br />Sample ID: C13010694 -001E <br />Sample Matrix Spike <br />Run: SUB - 6198847 <br />01/25/13 11:23 <br />Nitrogen, Nitrate +Nitrite as N <br />1.52 mg /L <br />0.010 <br />100 90 110 <br />Sample ID: C13010694 -001E <br />Sample Matrix Spike Duplicate <br />Run: SUB - 6198847 <br />01/25/13 11:25 <br />Nitrogen, Nitrate +Nitrite as N <br />1.52 mg /L <br />0.010 <br />101 90 110 <br />0.2 10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 13 of 19 <br />