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www.energylab.com Helena,MT 677-472-0711 •Billings,MT 800-735-4489•Casper,VVY 888-235-0515 <br /> ^ h*ftW&M*=&WO 1952 Gillette,WY 866-686-7175•Rapid City,SD 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 %REC Low Limit High Limit RPD RPDLimit Qua[ <br /> Method: A2540 C Batch:TDS140731A <br /> Lab ID: MB-1 140731A Method Blank Run:BAL-19 140731A 07/31/14 15:40 <br /> Solids,Total Dissolved TDS @ 180 C ND mg/L 7 <br /> Lab ID: LCS-2_140731A Laboratory Control Sample Run:BAL-19_140731A 07/31/14 15:40 <br /> Solids,Total Dissolved TDS @ 180 C 2000 mg/L 10 100 90 110 <br /> Lab ID: C14070997-001A DUP Sample Duplicate Run:BAL-19_140731A 07/31/14 15:41 <br /> Solids,Total Dissolved TDS @ 180 C 36.6 mg/L 10 19 5 R <br /> -RPD greater than method limit. Difference<PQL-RPD not applicable. <br /> Lab ID: C14070997-002A MS Sample Matrix Spike Run:BAL-19_140731A 07/31/14 15:41 <br /> Solids,Total Dissolved TDS @ 180 C 1140 mg/L 10 99 90 110 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration R-RPD exceeds advisory limit. <br /> Page 6 of 22 <br />