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wwwenergylabcom ` Helena, MT 577-472-0711 • Billings, MT 000.735-4469 • Casper, WY l80-233-5815 <br />• 18!? J,-: feltet WY 866=186-7175 • Rapid City, Sp 886-672-1225 • College Station, TX OW600-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program <br />Analyte Count Result Units <br />Method: E200.8 <br />Sample ID: C10081031-002CMS4 6 Sample Matrix Spike <br />Lead 0.0521 mg/L <br />Molybdenum 0.0491 mg/L <br />Silver 0.0182 mg/L <br />Thallium 0.0523 mg/L <br />Uranium 0.0618 mg/L <br />Zinc 0.0510 mg/L <br />Sample ID: 010081031-002CMSD 6 Sample Matrix Spike Duplicate <br />Lead 0.0527 mg/L <br />Molybdenum 0.0518 mg/L <br />Silver 0.0183 mg/L <br />Thallium 0.0528 mg/L <br />Uranium 0.0618 mg/L <br />Zinc 0.0502 mg/L <br />Sample ID: LRB 6 Method Blank <br />Lead ND mg/L <br />Molybdenum 0.0004 mg/L <br />Silver ND mg/L <br />Thallium ND mg/L <br />Uranium ND mg/L <br />Zinc 0.003 mg/L <br />Sample ID: LFB 6 Laboratory Fortified Blank <br />Lead 0.0520 mg/L <br />Molybdenum 0.0510 mg/L <br />Silver 0.0203 mg/L <br />Thallium 0.0515 mg/L <br />Uranium 0.0519 mg/L <br />Zinc 0.0549 mg/L <br />Report Date: 09/16/10 <br />Work Order: C10080790 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Batch: R136716A <br />Run: ICPMS4-C 100831A 09/01/1010:26 <br />0.050 104 70 130 <br />0.0010 98 70 130 <br />0.010 91 70 130 <br />0.0010 105 70 130 <br />0.00030 106 70 130 <br />0.010 100 70 130 <br /> Run: ICPMS4-C_100831A 09/01/1010:33 <br />0.050 105 70 130 1.1 20 <br />0.0010 103 70 130 5.4 20 <br />0.010 92 70 130 0.5 20 <br />0.0010 106 70 130 1 20 <br />0.00030 106 70 130 0 20 <br />0.010 98 70 130 1.7 20 <br /> Run: ICPMS4-C 100831A 08/31/1012:50 <br />2E-05 <br />8E-05 <br />8E-05 <br />2E-05 <br />8E-06 <br />0.0001 <br /> Run: ICPMS4-C_100831A 08/31/1012:57 <br />0.0010 104 85 115 <br />0.0010 101 85 115 <br />0.0010 102 85 115 <br />0.0010 103 85 115 <br />0.00030 104 85 115 <br />0.0010 103 85 115 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 20 of 37