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-- www.energylab Helena, MT 877-472-0711 • Billings, MT 600-735 44BS • Casper, WY 886-235-0515 <br />.com 8$8-690-2218 <br />t;C Ain"cal ErcellanteSlncr 1852 Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, Tx <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Report Date: 01119/11 <br />Client: Cotter Corporation Work Order: 010120711 <br />Project: Schwartzwalder Mine <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Oual i <br />Batch: R1 41923A <br />Method: E200.8 01/17/1115:43 <br />Sample ID: 010120711-00IDMS4 Sample Matrix Spike Run: ICPMS4-C_1 101 17A 70 130 S <br />Zinc 0.0304 mg/L 0.010 7 <br />Run: ICPMS4-C_110117A 01/17/1115:53 <br />Sample ID: 010120711-001DMSD Sample Matrix Spike Duplicate 70 130 37 20 SR <br />Zinc 0.0208 mg/L 0.010 4 <br />k Run: ICPMS4-C_110117A 01/17/11 13:59 <br />Method Dian <br />Sample ID: LRB Met <br />Zinc 0.002 mg/L 0.0001 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS4-C_110117A Zinc 0.0577 mg/L 0.0010 112 85 115 <br />Qualifiers: <br />ND -Not detected at the reporting limit. <br />RL - Analyte reporting limit. <br />- RPD exceeds advisory limit. <br />R <br />MDC - Minimum detectable concentration <br />S - Spike recovery outside of advisory limits. <br />01/17/11 14:06 <br />Page 14 of 23