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ENERGY <br />_AHOHAI OHIf'3 <br />wenionergylab.con <br />Amiga ©s#.nc.Stmc. <br />Client: Cotter Corporation <br />Project: Schwartz GW 5/26/11 S25771 <br />Method: E200.8 <br />Sample ID: LRB <br />Antimony <br />Arsenic <br />Copper <br />Lead <br />Manganese <br />Silver <br />Thallium <br />Zinc <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />8 Method Blank <br />ND mg /L <br />ND mg /L <br />ND mg /L <br />ND mg /L <br />ND mg /L <br />ND mg /L <br />ND mg /L <br />ND mg /L <br />Helena, MT 877- 472 -0711 • Billings, MT 800 -735 -4488 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 - 686 -7175 • Rapid City, SD 888 -672 -1225 • College Station, 13 888 -680 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />0.0010 <br />0.0010 <br />0.0010 <br />0.0050 <br />0.0050 <br />0.00020 <br />0.00020 <br />0.0050 <br />Run: ICPMS2 -C 110601A <br />Sample ID: LFB 8 Laboratory Fortified Blank Run: ICPMS2- C_110601A <br />Antimony 0.0515 mg /L 0.0010 103 85 115 <br />Arsenic 0.0504 mg /L 0.0010 101 85 115 <br />Copper 0.0512 mg /L 0.0010 102 85 115 <br />Lead 0.0500 mg /L 0.0010 100 85 115 <br />Manganese 0.0513 mg /L 0.0010 99 85 115 <br />Silver 0.0194 mg /L 0.0010 97 85 115 <br />Thallium 0.0497 mg /L 0.0010 99 85 115 <br />Zinc 0.0524 mg /L 0.0010 105 85 115 <br />Sample ID: C11050969 011CMS4 8 Sample Matrix Spike Run: ICPMS2- C_110601A <br />Antimony 0.257 mg /L 0.050 103 70 130 <br />Arsenic 0.443 mg /L 0.0010 101 70 130 <br />Copper 0.247 mg /L 0.010 97 70 130 <br />Lead 0.258 mg /L 0.050 103 70 130 <br />Manganese 0.245 mg /L 0.010 96 70 130 <br />Silver 0.0876 mg /L 0.010 88 70 130 <br />Thallium 0.261 mg /L 0.10 104 70 130 <br />Zinc 0.238 mg /L 0.010 81 70 130 <br />ND - Not detected at the reporting limit. <br />Report Date: 07/11/11 <br />Work Order: C11050928 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Page 10 of 20 <br />Batch: R146473 <br />06/01/11 11:56 <br />06/01/11 11:59 <br />06/01/11 13:59 <br />Sample ID: 011050969 011CMSD 8 Sample Matrix Spike Duplicate Run: ICPMS2- C_110601A 06/01/11 14:01 <br />Antimony 0.259 mg /L 0.050 103 70 130 0.6 20 <br />Arsenic 0.443 mg /L 0.0010 100 70 130 0.1 20 <br />Copper 0.245 mg /L 0.010 96 70 130 0.7 20 <br />Lead 0.256 mg /L 0.050 102 70 130 0.8 20 <br />Manganese 0.241 mg /L 0.010 95 70 130 2.0 20 <br />Silver 0.0885 mg /L 0.010 88 70 130 1.1 20 <br />Thallium 0.260 mg /L 0.10 103 70 130 0.5 20 <br />Zinc 0.237 mg /L 0.010 80 70 130 0.2 20 <br />