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www-energylab-com ( Helena, MT 8714724711 • Billings, MT 800-735-4489 a Casper, WY 868-235-0515 <br />Aw4nf Emrtlraea A.Im J Gillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 • College Station, ix 888-680-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 11 /11 /10 <br />Project: Schwartzwalder Water Monitoring Program-Discharge Work Order: C10100223 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: R138261 <br />Sample ID: LRB Method Blank Run: ICPMS2-C_101007A 10/07/10 13:42 <br />Uranium ND mg/L 1 E-05 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS2-C_101007A 10/07/10 13:47 <br />Uranium 0.0509 mg/L 0.00030 102 85 115 <br />Sample ID: C10100223-001CMS4 Sample Matrix Spike Run: ICPMS2-C_101007A 10/08/10 09:02 <br />Uranium 0.0547 mg/L 0.00030 109 70 130 <br />Sample ID: C10100223-001CMSD Sample Matrix Spike Duplicate Run: ICPMS2-C_101007A 10/08/10 09:07 <br />Uranium 0.0557 mg/L 0.00030 111 70 130 1.8 20 <br />Method: E200.8 Batch: 27867 <br />Sample ID: MB-27867 Method Blank Run: ICPMS2-C_101028A 10/29/10 02:04 <br />Uranium 5E-05 mg/L 4E-05 <br />Sample ID: LCS3-27867 Laboratory Control Sample Run: ICPMS2-C_101028A 10/29/10 02:38 <br />Uranium 0.559 mg/L 0.00030 112 85 115 <br />Sample ID: C10100254-001 AMS3 Sample Matrix Spike Run: ICPMS2-C_101028A 10/29/10 03:05 <br />Uranium 0.560 mg/L 0.00030 112 70 130 <br />Sample ID: 010100254-001AMSD Sample Matrix Spike Duplicate Run: ICPMS2-C_101028A 10/29/10 03:11 <br />Uranium 0.588 mg/L 0.00030 117 70 130 4.8 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 3 of 8