2011-05-11_HYDROLOGY - M1977300 (11)

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wwwoergytlab.mm r HPlpr, W 871-412-0111 • Billings, W 800-135-4489 • Casper, WY 888-235-0515 AiufErAftecr3%ace 1851 l FA66,=7115 • Rapid City, 50 888-612-1Y25 • College Station, TX 8111111-6104218 i66 QA/QC Summary Report Prepared by Casper, WY Branch Client: Cotter Corporation Project: Schwartz-GW 03/31/11 S25673 Report Date: 04/25/11 Work Order: C11040039 Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method: E200.8 Batch: 29477 Sample ID: MB-29477 7 Method Blank Run: ICPMS2-C_110408A 04/08/11 19:00 Antimony ND mg/L 0.0010 Arsenic ND mg/L 0.0010 Copper ND mg/L 0.0010 Lead ND mg/L 0.0050 Silver ND mg/L 0.00020 Thallium ND mg/L 0.00020 Zinc ND mg/L 0.0050 Sample ID: LCS3-29477 7 Laboratory Control Sample Run: ICPMS2-C_110408A 04/08/11 19:07 Antimony 0.607 mg/L 0.050 121 85 115 S Arsenic 0.540 mg/L 0.0010 108 85 115 Copper 0.509 mg/L 0.010 102 85 115 Lead 0.530 mg/L 0.050 106 85 115 Silver 0.0502 mg/L 0.010 100 85 115 Thallium 0.531 mg/L 0.10 106 85 115 Zinc 0.502 mg/L 0.010 100 85 115 - Response is above standard QA limit. This could indicate a high bias for the sample results. Since the re were no detectable analyte responses, and the remainder of the run QA is within acceptance range, this batch is approved. Sample ID: C1 1040145-001 BMS3 7 Sample Matrix Spike Run: ICPMS2-C_110408A 04/08/11 20:55 Antimony 0.591 mg/L 0.050 118 70 130 Arsenic 0.523 mg/L 0.0010 103 70 130 Copper 0.537 mg/L 0.010 100 70 130 Lead 0.523 mg/L 0.050 104 70 130 Silver 0.0490 mg/L 0.010 98 70 130 Thallium 0.521 mg/L 0.10 104 70 130 Zinc 0.930 mg/L 0.010 98 70 130 Sample ID: C1 1040145-001 BMSD 7 Sample Matrix Spike Duplicate Run: ICPMS2-C_110408A 04/08/11 21:01 Antimony 0.630 mg/L 0.050 126 70 130 6.5 20 Arsenic 0.527 mg/L 0.0010 104 70 130 0.8 20 Copper 0.547 mg/L 0.010 102 70 130 1.8 20 Lead 0.540 mg/L 0.050 107 70 130 3.3 20 Silver 0.0505 mg/L 0.010 101 70 130 3.1 20 Thallium 0.531 mg/L 0.10 106 70 130 2.0 20 Zinc 0.965 mg/L 0.010 105 70 130 3.7 20 Qualifiers: RL - Analyte reporting limit. MDC - Minimum detectable concentration ND - Not detected at the reporting limit. S - Spike recovery outside of advisory limits. Page 8 of 19