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EFIMM wwwxeresb.com I Helena, MT 877-472 -0711 • Billings, MT 808- 735-4489 • Casper, WY 888 - 235 -1515 <br />IlalyEleslEar+rfra Sbu IM J Gillette, WY 866 -688 -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 <br />Report Date: <br />10/18/13 <br />Project: Schwartz GW 9/24/13 S27176 & S27177 <br />Work Order: <br />C13090929 <br />Analyte <br />Count Result Units <br />RL <br />° /.REC Low Limit High Limit RPD <br />RPDLimit Qua[ <br />Method: A2320 B <br />Batch: R178777 <br />Sample ID: MBLK <br />2 Method Blank <br />Run: MANTECH_130925B <br />09/25/13 14:46 <br />Alkalinity, Total as CaCO3 <br />ND mg /L <br />2 <br />Bicarbonate as HCO3 <br />1 mg /L <br />1 <br />Sample ID: LCS_130917 <br />Laboratory Control Sample <br />Run: MANTECH_130925B <br />09/25/13 15:01 <br />Alkalinity, Total as CaCO3 <br />262 mg /L <br />5.0 <br />105 90 110 <br />Sample ID: C13090925- 005ADUP <br />2 Sample Duplicate <br />Run: MANTECH_130925B <br />09/25/13 18:51 <br />Alkalinity, Total as CaCO3 <br />191 mg /L <br />5.0 <br />4.2 <br />10 <br />Bicarbonate as HCO3 <br />233 mg /L <br />5.0 <br />4.2 <br />10 <br />Sample ID: C13090925- 005AMS <br />Sample Matrix Spike <br />Run: MANTECH_130925B <br />09/25/13 18:59 <br />Alkalinity, Total as CaCO3 <br />451 mg /L <br />5.0 <br />101 80 120 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 7 of 23 <br />