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www.***ab.com <br />Awaryftai,f?ew SiNrrf!!t <br />1711 • Billings, MT 800-735-4415 ? Gaaper, WT 51 <br />pid City, so 8BB-672-1225 • College Station, TX 81 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 12/17/10 <br />Project: Schwartzwalder Water Monitoring Program-Discharge Work Order: C10110468 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: HACH 8000 Analytical Run: HACH DR3000_101112A <br />Sample ID: CCV-3 Continuing Calibration Verification Standard 11/12/10 09:11 <br />Oxygen Demand, Chemical (COD) 1000 mg/L 5.0 100 90 110 <br />Method: HACH 8000 <br />Sample ID: MBLK-1 Method Blank <br />Oxygen Demand, Chemical (COD) ND mg/L <br />Sample ID: LCS-2 Laboratory Control Sample <br />Oxygen Demand, Chemical (COD) 510 mg/L <br />Sample ID: C10110464-001 DMS Sample Matrix Spike <br />Oxygen Demand, Chemical (COD) 584 mg/L <br />Sample ID: 010110464-001DMSD Sample Matrix Spike Duplicate <br />Oxygen Demand, Chemical (COD) 580 mg/L <br />Batch: A2010-11-12_b_000_Ul <br />Run: HACH DR3000 101112A 11/12/10 09:11 <br />3 <br />Run: HACH DR3000_101112A 11/12/10 09:11 <br />5.0 102 90 110 <br />Run: HACH DR3000_101112A 11/12/10 09:12 <br />5.0 108 90 110 <br />Run: HACH DR3000_101112A 11/12/10 09:13 <br />5.0 108 90 110 0.7 10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 18 of 23 <br />