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140 A., ""'eneWab.can J Helena, W 671472-0711 • Billings, MT 800-135-4489 • Casper, WY 808-2354515 <br />AaaWd Am IJV Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-680-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 11 /05/10 <br />Project: Schwartzwalder Water Monitoring Program Discharge Work Order: 010100100 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Batch: 27775 <br />Sample ID: MB-27775 Method Blank Run: CVAA_C203_101011A 10/11/10 09:57 <br />Mercury ND mg/L 8E-06 <br />Sample ID: LCS-27775 Laboratory Control Sample Run: CVAA_C203_101011A 10/11/10 09:58 <br />Mercury 0.00490 mg/L 0.0010 98 85 115 <br />Sample ID: C10100332-001CMS Sample Matrix Spike Run: CVAA_C203_101011A 10/11/10 10:02 <br />Mercury 0.00468 mg/L 0.00010 94 85 115 <br />Sample ID: C10100332-001CMSD Sample Matrix Spike Duplicate Run: CVAA_C203_101011A 10/11/10 10:04 <br />Mercury 0.00470 mg/L 0.00010 94 85 115 0.3 10 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 14 of 22