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--- <br />www.energylab.com ; Helena, MT 877-472-0711 - Billings, fdT 800-735-4489 - Casper, WY BBB-235-0515 <br />_ _ ±\? ry Aearyllc?lExcallence S/nca 1951 j Gillette, WY 866.686-7175 - Rapid City, SO 889-672-1225 - College Station, TX 888-690-221 a <br />m ? QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 12/09/10 <br />Project: Schwartzwalder Water S ampling Program-Ground Water Work Order: C10110027 <br />_ _......... .... <br />Analyte Count Result Units RL <br />%REC Low Limit High Limit RPD <br />RPDLimit Qual <br /> Batch: 28051 <br />Method: E245.1 <br />Sample ID: MB-28051 Method Blank Run: CVAA_C203_101103A 11/03/10 09:31 <br />Mercury ND mg/L 8E-06 <br />Sample ID: LCS-28051 Laboratory Control Sample Run: CVAA_C203_101103A 11/03/10 09:36 <br />Mercury 0.00473 mg/L 0.0010 95 85 115 <br />Sample ID: 01 01 01 1 23-001 DMS Sample Matrix Spike Run: CVAA_C203_101103A 11/03/10 09:47 <br />Mercury 0.00486 mg/L 0.00010 97 85 115 <br />Sample ID: C1 01 01 1 23-001DMSD Sample Matrix Spike Duplicate Run: CVAA_C203_101103A 11/03/10 09:51 <br />Mercury 0.00487 mg/L 0.00010 97 85 115 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 15 of 26