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wwwsne #ab.com ? Helena','?dT 877-472-0711 • Billings, MT 800-735-4489 + Casper, YYy 888-235-05115 <br />Au faMasaSMu llSY cilletfe,,#y 866-686-71.75 • Rapid City, So 888-671-1225 • College Station, TX 868-690-1218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 09/14/10 <br />Project: Schwartzwalder Water Monitoring Program Work Order: C10080538 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E353.2 Analytical Run: SUB-6152660 <br />Sample ID: ICV Initial Calibration Verification Standard 08/20/10 09:30 <br />Nitrogen, Nitrate+Nitrite as N 29.2 mg/L 0.20 99 90 110 <br />Method: E353.2 Batch: 6_13152660 <br />Sample ID: MBLK Method Blank Run: SUB-13152660 08/20/10 09:31 <br />Nitrogen, Nitrate+Nitrite as N ND mg/L 0.01 <br />Sample ID: LFB Laboratory Fortified Blank Run: SUB-B152660 08/20/10 09:32 <br />Nitrogen, Nitrate+Nitrite as N 0.985 mg/L 0.010 101 90 110 <br />Sample ID: 810081557-002DMS Sample Matrix Spike Run: SUB-6152660 08/20/10 09:38 <br />Nitrogen, Nitrate+Nitrite as N 0.987 mg/L 0.010 99 90 110 <br />Sample ID: 810081557-002DMSD Sample Matrix Spike Duplicate Run: SUB-13152660 08/20/10 09:40 <br />Nitrogen, Nitrate+Nitrite as N 0.993 mg/L 0.010 100 90 110 0.6 10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 21 of 31