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;ENERGY <br />LABORATORIES <br />Client: Cotter Corporation <br />Project: Schwartz SW 07/06/11 S25853- S25860 <br />Method: E200.8 <br />Sample ID: MB -30399 <br />Antimony <br />Arsenic <br />Copper <br />Lead <br />Uranium <br />Antimony <br />Arsenic <br />Copper <br />Lead <br />Uranium <br />www.energylab.com <br />Analytical Engle= Since 1952 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />5 Method Blank <br />0.0006 mg /L <br />0.002 mg /L <br />0.004 mg /L <br />0.0004 mg /L <br />ND mg /L <br />Helena, MT 877 - 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888 - 235 -0515 <br />Gillette, WY 866 -686 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 -690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Analyte <br />Count Result Units <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />0.0002 <br />0.0003 <br />0.0005 <br />5E -05 <br />4E -05 <br />Run: ICPMS2 -C 110713A <br />Sample ID: LCS3 - 30399 5 Laboratory Control Sample Run: ICPMS2- C_110713A 07/13/11 1 <br />Antimony 0.605 mg /L 0.050 121 85 115 S <br />Arsenic 0.530 mg /L 0.0010 - 106 85 115 <br />Copper 0.516 mg /L 0.010 103 85 115 <br />Lead 0.552 mg /L 0.050 110 85 115 <br />Uranium 0.561 mg /L 0.00030 112 85 115 <br />- Response is above standard QA limit. This could indicate a high bias for the sample results. Since there were no detectable analyte responses, and the remainder of the <br />run QA is within acceptance range, this batch is approved. <br />Sample ID: C11070275- 008EMS3 5 Sample Matrix Spike <br />0.582 mg /L <br />0.536 mg /L <br />0.526 mg /L <br />0.552 mg /L <br />0.655 mg /L <br />Run: ICPMS2 -C 110713A <br />0.050 116 70 130 <br />0.0010 107 70 130 <br />0.010 104 70 130 <br />0.050 110 70 130 <br />0.00030 113 70 130 <br />Sample ID: C11070275 008EMSD 5 Sample Matrix Spike Duplicate Run: ICPMS2- C_110713A 07/13/11 17:00 <br />Antimony 0.602 mg /L 0.050 120 .70 130 3.5 20 <br />Arsenic 0.543 mg /L 0.0010 108 70 130 1.3 20 <br />Copper 0.521 mg /L 0.010 103 70 130 0.9 20 <br />Lead 0.561 mg /L 0.050 112 70 130 1.7 20 <br />Uranium 0.662 mg /L 0.00030 115 70 130 1.0 20 <br />Method: E200.8 <br />Sample ID: LRB 7 Method Blank <br />Antimony 9E -05 mg /L 4E -05 <br />Arsenic 0.0001 mg /L 0,0001 <br />Copper ND mg /L 7E -05 <br />Lead ND mg /L 9E -05 <br />Silver ND mg /L 1E -05 <br />Thallium 2E -05 mg /L 1E-05 <br />Zinc 0.001 mg /L 6E -05 <br />Run: ICPMS2 -C 110713A <br />Sample ID: LFB 7 Laboratory Fortified Blank Run: ICPMS2- C_110713A <br />Antimony 0.0530 mg /L 0.0010 106 85 115 <br />Arsenic 0.0530 mg /L 0.0010 106 85 115 <br />Copper. 0.0536 mg /L 0.0010 107 85 115 <br />Lead 0.0538 mg /L 0.0010 108 85 115 <br />Silver 0.0209 mg /L 0.0010 104 85 115 <br />Thallium 0.0527 mg /L 0.0010 105 85 115 <br />Zinc 0.0553 mg /L 0.0010 108 85 115 <br />ND - Not detected at the reporting limit. <br />S - Spike recovery outside of advisory limits. <br />Report Date: 08/15/11 <br />Work Order: C11070275 <br />Page 21 of 43 <br />Batch: 30399 <br />07/13/11 16:28 <br />07/13/11 16:58 <br />Batch: R148055 <br />07/13/11 11:37 <br />07/13/11 11:40 <br />