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a - T wwwenergylab.com ? Helena, MT 677-472-0711 v Billings, MT 800-735.4489 a Casper, WY 888-235-0515 <br />DID] Ana"cal fxcefloweSWo 1912 Gillette, WY 866-686-7175 • Rapid CRY, SD 888-672-1225 • College Station, TX 888-690-2218 <br />QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 09/09/10 <br />Project: Schwartzwalder Water Monitoring Program Work Order: C10080639 <br />An la yte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: R136388 <br />Sample ID: LRB Method Blank Run: ICPMS2-C_100823A 08/23/10 14:59 <br />Antimony 0.0001 mg/L 7E-05 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS2-C_100823A 08/23/10 15:05 <br />Antimony 0.0540 mg/L 0.0010 108 85 115 <br />Sample ID: C10080759-001CMS4 Sample Matrix Spike Run: ICPMS2-C_100823A 08/23/10 18:09 <br />Antimony 0.0555 mg/L 0.050 111 70 130 <br />Sample ID: 010080759-001CMSD Sample Matrix Spike Duplicate Run: ICPMS2-C_100823A 08/23/10 18:16 <br />Antimony 0.0559 mg/L 0.050 112 70 130 0.6 20 <br />Method: E200.8 <br />Sample ID: C10080288-003CMS4 6 Sample Matrix Spike <br />Arsenic 0.0549 mg/L <br />Boron 0.112 mg/L <br />Chromium 0.0540 mg/L <br />Iron 1.29 mg/L <br />Thallium 0.0548 mg/L <br />Uranium 3.58 mg/L <br />Sample ID: C10080288-003CMSD 6 Sample Matrix Spike Duplicate <br />Arsenic 0.0541 mg/L <br />Boron 0.112 mg/L <br />Chromium 0.0535 mg/L <br />Iron 1.30 mg/L <br />Thallium 0.0546 mg/L <br />Uranium 3.55 mg/L <br />Sample ID: LRB 6 Method Blank <br />Arsenic ND mg/L <br />Boron 0.003 mg/L <br />Chromium ND mg/L <br />Iron 0.0008 mg/L <br />Thallium ND mg/L <br />Uranium 9E-06 mg/L <br />Sample ID: LFB 6 Laboratory Forti fied Blank <br />Arsenic 0.0540 mg/L <br />Boron 0.0531 mg/L <br />Chromium 0.0538 mg/L <br />Iron 1.30 mg/L <br />Thallium 0.0539 mg/L <br />Uranium 0.0538 mg/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br /> Batch: R136282A <br /> Run: ICPMS4-C_100819A 08/20/10 01:29 <br />0.0010 110 70 130 <br />0.10 106 70 130 <br />0.050 108 70 130 <br />0.030 102 70 130 <br />0.0010 110 70 130 <br />0.00030 70 130 A <br /> Run: ICPMS4-C_100819A 08/20/10 01:36 <br />0.0010 108 70 130 1.4 20 <br />0.10 105 70 130 0.7 20 <br />0.050 107 70 130 0.9 20 <br />0.030 103 70 130 0.7 20 <br />0.0010 109 70 130 0.3 20 <br />0.00030 70 130 0.7 20 A <br /> Run: ICPMS4-C_100819A 08/19/1015:29 <br />4E-05 <br />5E-05 <br />0.0001 <br />2E-05 <br />8E-06 <br /> Run: ICPMS4-C_100819A 08/19/1015:36 <br />0.0010 108 85 115 <br />0.0010 101 85 115 <br />0.0010 108 85 115 <br />0.012 104 85 115 <br />0.0010 108 85 115 <br />0.00030 108 85 115 <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 11 of 21