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".? www,energylab.com t Helena, fAT 877-472-0711 Billings, MT 800-735-4489 Casper, W( 888-235-0515 <br />An" ca/Erce0mcoSface 1952 Gillette, VrY $66-680-717 5 a Rapid City, SD B8B-672-1225 - College Station, T% 888-690.2218 <br />_ . " ? ?/ <br />Y QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 01/06/11 <br />Project: Schwartzwalder Water Monitoring Program - Ground W Work Order: C10110899 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Oval <br />Method: E245.1 Batch: 28349 <br />Sample ID: MB-28349 Method Blank Run: CVAA_C203-_101130A 11/30/10 13:17 <br />Mercury ND mg/L 0.00010 <br />Sample ID: LCS-28349 Laboratory Control Sample Run: CVAAC203..,101130A 11/30/10 13:18 <br />Mercury 0.00534 mg/L 0.00020 107 90 110 <br />Sample ID: C10110514-006EMS Sample Matrix Spike Run: CVAA_C203_101130A 11/30/10 13:20 <br />Mercury 0.00544 mg/L 0.00010 109 85 115 <br />Sample ID: C1 01 1 051 4-0 0 6EMSD Sample Matrix Spike Duplicate Run: CVAA_C203_101130A 11/30/10 13:22 <br />Mercury 0.00502 mg/L 0.00010 100 85 115 8.1 10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 8 of 13 <br />Page 13 of 23