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0 www.enefulab.com I Helena, MT 577-472-0711 v Billings, tdT 800-735-4489 m Casper WY 888-235-0515 <br />-` t,. -+?` huu"crt ErcetlemSares 1957 Gillette, WY 866.666-7175 v Rapid City, SO 688-672-1225 v College Station, TX 888-690-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 09/21/10 <br />Project: Schwartzwaider Water Monitoring Program-Discharge Work Order: 010090075 <br />Analyte Result Units RL %REC Low Limit High Limit RPD RPDL[m[t Qua[ <br />Method: E200.8 Batch: R136941 <br />Sample ID: LRB Method Blank Run: ICPMS2-C_100907A 09/07/10 11:58 <br />Uranium ND mg/L 0.00020 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS2-C_100907A 09107/10 12:05 <br />Uranium 0.0536 mg/L 0.00030 107 85 115 <br />Sample ID: C10090075-001 BMS4 Sample Matrix Spike Run: ICPMS2-C_100907A 09/08/10 06:52 <br />Uranium 0.0525 mg/L 0.00030 105 70 130 <br />Sample ID: C10090075-001BMSD4 Sample Matrix Spike Duplicate Run: ICPMS2-C_100907A 09/08/10 06;59 <br />Uranium 0.0530 mg/L 0.00030 106 70 130 1 20 <br />Method: E200.8 Balch: 27374 <br />Sample ID: MB-27374 Method Blank Run: ICPM52-C_100914A 09/14/10 16:40 <br />Uranium ND mg/L 0.00020 <br />Sample ID: LCS3-27374 Laboratory Control Sample Run: ICPMS2-C_100914A 09/14/10 16:46 <br />Uranium 0.546 mg/L 0.00030 109 85 115 <br />Sample ID: C1 00901 4 0-01 2BMS3 Sample Matrix Spike Run: ICPMS2-C.-.100914A 09/14/10 19:23 <br />Uranium 0.594 mg/L 0.00030 117 70 130 <br />Sample to: C10090140-012BMSD3 Sample Matrix Spike Duplicate Run: ICPMS2-C_100914A 09114/10 19:30 <br />Uranium 0.590 mg/L 0.00030 116 70 130 0.7 20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum delectable concentration <br />Page 3 of 8