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r .. w*vAne sbxom 1111 077-472-07111 • Billings, UT 600-135.4499 a Casper, WY 888-235-1515 <br />0b <br />AfieatiieNslwtAft . <br />7175,e Rapid City; SD 81B-672-1225 • College Station, TX 811-61D-1215 <br /> QA/QC Sum mary Report <br /> Prepared by Casper, WY Branch <br /> Report Date: 03/21 /11 <br />Client: Cotter Corporation <br />Project: Schwartz SW 2/17/11 S25626-S25633 Work Order: C11020554 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Analytical Run: SUB-B161810 <br />Method: E353.2 03/01/11 10:12 <br />Sample ID: ICV Initial Calibration Verification Standard <br />Nitrogen, Nitrate+Nitrite as N 31.1 mg/L 0.20 106 90 110 <br /> Batch: 1313161810 <br />Method: E353.2 <br />Sample ID: B1 1021557-001 AMSD <br />Sample Matrix Spike Duplicate <br />Run: SUB-6161810 03/01/11 10:38 <br />Nitrogen, Nitrate+Nitrite as N 1.80 mg/L 0.010 102 90 110 0.4 10 <br />Sample ID: 811021557-001AMS Sample Matrix Spike Run: SUB-13161810 03/01/11 10:37 <br />Nitrogen, Nitrate+Nitrite as N 1.80 mg/L 0.010 102 90 110 <br />Sample ID: LFB Laboratory Fortified Blank Run: SUB-B161810 03/01/11 10:14 <br />Nitrogen, Nitrate+Nitrite as N 1.05 mg/L 0.010 107 90 110 <br />Sample ID: MBLK Method Blank Run: SUB-6161810 03/01/11 10:13 <br />Nitrogen, Nitrate+Nitrite as N ND mg/L 0.10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 24 of 39