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• www.ewgylab.com i Helena,MT 677-472-6711 •Billings,MT 800-735-4489•Casper,WY 888-235-0515 <br /> n Aeaoeal since ism Gillette,WY 866-666-7175•Rapid City,SO 886-672-1225•College Station,TX 888-690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 08/21/14 <br /> Project: Schwartz-GW 7/29/14 S27612 Work Order: C14071021 <br /> Analyte Count Result Units RL %aREC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E245.1 Analytical Run:CVAA_C203_140805B <br /> Lab ID: ICV Initial Calibration Verification Standard 08/05/14 14:18 <br /> Mercury 0.00529 mg/L 0.00010 106 90 110 <br /> Lab ID: CCV Continuing Calibration Verification Standard 08/05/14 14:56 <br /> Mercury 0.00551 mg/L 0.00010 110 90 110 <br /> Method: E245.1 Batch: 140805B <br /> Lab ID: IPC Instrument Performance Check Sample Run:CVAA_C203_140805B 08/05/14 14:23 <br /> Mercury 0.00518 mg/L 0.00010 104 95 105 <br /> Method: E245.1 Batch:42180 <br /> Lab ID: MB-42180 Method Blank Run:CVAA C203 140805B 08/05/14 14:26 <br /> Mercury ND mg/L 7E-05 <br /> Lab ID: LCS-42180 Laboratory Control Sample Run:CVAA_C203_140805B 08/05/14 14:28 <br /> Mercury 0.00528 mg/L 0.00010 106 85 115 <br /> Lab ID: C14070956-001BMS Sample Matrix Spike Run:CVAA_C203_140805B 08/05/14 14:38 <br /> Mercury 0.00549 mg/L 0.00010 110 75 125 <br /> Lab ID: C14070956-001BMSD Sample Matrix Spike Duplicate Run:CVAA_C203_140805B 08/05/14 14:41 <br /> Mercury 0.00524 mg/L 0.00010 105 75 125 4.7 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 14 of 22 <br />