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• r.n` www.ewdab.com Helena,UT 877-472-0711 -Billings,MT 800-735-4489•Casper,WY 888-235-0515 <br /> �- fta w-Sfiaa 102 Gillette,WY 866466-7175•Rapid City,SD 888-672-1225-College Station,T%888-690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 04/28/14 <br /> Project: Schwartz GW 04/09/14 S27455, S27457 Work Order: C14040376 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: A2320 B Batch:R185344 <br /> Lab ID: MBLK 2 Method Blank Run: MANTECH 140410E 04/10/14 16:34 <br /> Alkalinity,Total as CaCO3 0.8 mg/L 0.6 <br /> Bicarbonate as HCO3 ND mg/L 1 <br /> Lab ID: LCS_131219 Laboratory Control Sample Run: MANTECH_140410B 04/10/14 16:48 <br /> Alkalinity,Total as CaCO3 259 mg/L 5.0 103 90 110 <br /> Lab ID: C14040361-003ADUP 2 Sample Duplicate Run:MANTECH_140410B 04/10/14 20:43 <br /> Alkalinity,Total as CaCO3 193 mg/L 5.0 0.5 10 <br /> Bicarbonate as HCO3 225 mg/L 5.0 0.1 10 <br /> Lab ID: C14040361-003AMS Sample Matrix Spike Run:MANTECH_140410B 04/10/14 20:52 <br /> Alkalinity,Total as CaCO3 410 mg/L 5.0 87 80 120 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 6 of 26 <br />