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• www.erwgylab.com Helena,MT 877472-0711 •Billings,MT 800-735-4489•Casper,WY 888-235-0515 <br /> Gillette,wY 866-686-7175•Rapid City,SO 888-672-1225•College Station,TX 888-690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 07/14/14 <br /> Project: Schwartz-GW 6/24/14 S27545 Work Order: C14060890 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E900.0 Batch:GrAB-1787 <br /> Lab ID: Th230-GrAB-1787 Laboratory Control Sample Run:G5000W_140701 B 07/02/14 16:01 <br /> Gross Alpha 144 pCi/L 125 80 120 S <br /> -LCS response is outside of the acceptance range for this analysis. Since the MB,MS,and MSD are acceptable the batch is approved. <br /> Lab ID: Sr90-GrAB-1787 Laboratory Control Sample Run:G5000W_140701 B 07/02/14 16:01 <br /> Gross Beta 201 pCi/L 100 80 120 <br /> Lab ID: MB-GrAB-1787 6 Method Blank Run:G5000W 140701E 07/02/14 16:01 <br /> Gross Alpha 0.3 pCi/L U <br /> Gross Alpha precision(±) 0.8 pCi/L <br /> Gross Alpha MDC 1 pCi/L <br /> Gross Beta -1.0 pCi/L U <br /> Gross Beta precision(±) 2 pCi/L <br /> Gross Beta MDC 3 pCi/L <br /> Lab ID: C14050393-001DDUP 6 Sample Duplicate Run:G5000W_140701B 07/02/14 16:01 <br /> Gross Alpha 41.6 pCi/L 5.4 45.7 <br /> Gross Alpha precision(±) 6.71 pCi/L <br /> Gross Alpha MDC 7.74 pCi/L <br /> Gross Beta 30.5 pCi/L 14 60.6 <br /> Gross Beta precision (±) 6.98 pCi/L <br /> Gross Beta MDC 10.5 pCi/L <br /> Lab ID: C14060916-007FMS Sample Matrix Spike Run:G5000W_140701 B 07/02/14 16:02 <br /> Gross Alpha 102 pCi/L 88 70 130 <br /> Lab ID: C14060916-007FMSD Sample Matrix Spike Duplicate Run:G5000W_140701 B 07/03/14 17:24 <br /> Gross Alpha 122 pCi/L 105 70 130 18 20 <br /> Lab ID: C14060916-007FMS Sample Matrix Spike Run:G5000W_140701 B 07/03/14 17:24 <br /> Gross Beta 194 pCi/L 95 70 130 <br /> Lab ID: C14060916-007FMSD Sample Matrix Spike Duplicate Run:G5000W_140701 B 07/03/14 17:24 <br /> Gross Beta 196 pCi/L 97 70 130 1.1 14.1 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration S-Spike recovery outside of advisory limits. <br /> U-Not detected at minimum detectable concentration <br /> Page 16 of 20 <br />