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wrrw.energylab.com <br />-AiudEk?l,Exe?AnaSMca i7! <br />Ings; _Mi 800-735-4499 • Casper, WY 888-235-0515 <br />t 818-672-1225 - College°Statim, TX 888-690-1218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz GW 3/04/11 S25660 <br /> <br />Report Date: 03/24/11 <br />Work Order: C11030181 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: R143657A <br />Sample ID: LRB 5 Method Blank Run: ICPMS4-C_110315A 03/15/11 11:57 <br />Antimony ND mg/L 0.0010 <br />Copper ND mg/L 0.0010 <br />Molybdenum ND mg/L 0.0050 <br />Thallium ND mg/L 0.00020 <br />Uranium ND mg/L 0.00020 <br />Sample ID: LFB 5 Laboratory Fortified Blank Run: ICPMS4-C_110315A 03/15/11 12:03 <br />Antimony 0.0515 mg/L 0.0010 102 85 115 <br />Copper 0.0548 mg/L 0.0010 110 85 115 <br />Molybdenum 0.0511 mg/L 0.0010 102 85 115 <br />Thallium 0.0526 mg/L 0.0010 105 85 115 <br />Uranium 0.0526 mg/L 0.00030 105 85 115 <br />Sample ID: C11030181-001CMS4 5 Sample Matrix Spike Run: ICPMS4-C_110315A 03/16/11 12:26 <br />Antimony 0.0574 mg/L 0.050 115 70 130 <br />Copper 0.0532 mg/L 0.010 106 70 130 <br />Molybdenum 0.0982 mg/L 0.0010 108 70 130 <br />Thallium 0.0543 mg/L 0.0010 109 70 130 <br />Uranium 2.43 mg/L 0.00030 70 130 A <br />Sample ID: C11030181-001CMSD 5 Sample Matrix Spike Duplicate Run: ICPMS4-C_110315A 03/16/11 12:33 <br />Antimony 0.0569 mg/L 0.050 114 70 130 1.0 20 <br />Copper 0.0519 mg/L 0.010 104 70 130 2.5 20 <br />Molybdenum 0.0995 mg/L 0.0010 111 70 130 1.4 20 <br />Thallium 0.0535 mg/L 0.0010 107 70 130 1.6 20 <br />Uranium 2.43 mg/L 0.00030 70 130 0.2 20 A <br />Qualifiers: <br />RL - Analyte reporting limit. A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />ND - Not detected at the reporting limit. MDC - Minimum detectable concentration <br />Page 9 of 20 <br />