2014-07-22_HYDROLOGY - M1977300 (2)

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• V WWII" www.erterdab.com Helena,W 877-472-0711 •Billings,ANT 600-735-4489•Casper,WY 888-235-0515 Gillette,WY 866-666-7175•Rapid City,So 888-672-1225•College Station,TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Cotter Corporation Report Date: 04/22/14 Project: Schwartz-GW 4/8/14 S27456 Work Order: C14040300 Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method: E200.8 Analytical Run: ICPMS2-C_140414A Lab ID: ICV 8 Initial Calibration Verification Standard 04/14/14 12:20 Antimony 0.0527 mg/L 0.0010 105 90 110 Arsenic 0.0487 mg/L 0.0010 97 90 110 Copper 0.0490 mg/L 0.0010 98 90 110 Lead 0.0508 mg/L 0.0010 101 90 110 Manganese 0.0522 mg/L 0.0010 104 90 110 Silver 0.0197 mg/L 0.0010 99 90 110 Thallium 0.0508 mg/L 0.0010 102 90 110 Zinc 0.0490 mg/L 0.0010 98 90 110 Method: E200.8 Batch:41085 Lab ID: C14040301-009CMS3 8 Sample Matrix Spike Run: ICPMS2-C_140414A 04/14/14 19:14 Antimony 0.541 mg/L 0.0010 108 70 130 Arsenic 0.446 mg/L 0.0010 89 70 130 Copper 0.433 mg/L 0.0050 86 70 130 Lead 0.487 mg/L 0.0010 97 70 130 Manganese 2.23 mg/L 0.0010 89 70 130 Silver 0.0474 mg/L 0.0010 95 70 130 Thallium 0.477 mg/L 0.00050 95 70 130 Zinc 0.431 mg/L 0.010 86 70 130 Lab ID: C14040301-009CMSD 8 Sample Matrix Spike Duplicate Run: ICPMS2-C_140414A 04/14/14 19:17 Antimony 0.538 mg/L 0.0010 107 70 130 0.6 20 Arsenic 0.442 mg/L 0.0010 88 70 130 0.7 20 Copper 0.435 mg/L 0.0050 87 70 130 0.5 20 Lead 0.488 mg/L 0.0010 98 70 130 0.2 20 Manganese 2.22 mg/L 0.0010 89 70 130 0.5 20 Silver 0.0475 mg/L 0.0010 95 70 130 0.2 20 Thallium 0.479 mg/L 0.00050 96 70 130 0.4 20 Zinc 0.427 mg/L 0.010 85 70 130 0.9 20 Lab ID: MB-41085 8 Method Blank Run: ICPMS2-C 140414A 04/14/14 18:01 Antimony ND mg/L 0.0010 Arsenic 0.000430 mg/L 0.0010 Copper 0.000813 mg/L 0.0010 Lead ND mg/L 0.0050 Manganese 0.000106 mg/L 0.0050 Silver ND mg/L 5.0E-05 Thallium ND mg/L 0.00020 Zinc 0.000549 mg/L 0.0050 Lab ID: LCS3-41085 8 Laboratory Control Sample Run: ICPMS2-C_140414A 04/14/14 18:14 Antimony 0.538 mg/L 0.0010 108 85 115 Arsenic 0.450 mg/L 0.0010 90 85 115 Copper 0.447 mg/L 0.0050 89 85 115 Lead 0.489 mg/L 0.0010 98 85 115 Qualifiers: RL-Analyte reporting limit. ND-Not detected at the reporting limit. MDC-Minimum detectable concentration Page 10 of 23