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• www.erwdab.com Helena,MT 877472-0711 •Billings,MT 600-7354489•Casper,WY 888-235-0515 <br /> - AutAtW same,ysu 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: 06/17/14 <br /> Project: Schwartz-GW 05/29/14 S27499 Work Order: C14050897 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: A2540 C Batch:TDS140530A <br /> Lab ID: MB-1 140530A Method Blank Run: BAL-19 140530A 05/30/14 16:00 <br /> Solids,Total Dissolved TDS @ 180 C ND mg/L 7 <br /> Lab ID: LCS-2_140530A Laboratory Control Sample Run:BAL-19_140530A 05/30/14 16:00 <br /> Solids,Total Dissolved TDS @ 180 C 1920 mg/L 10 96 90 110 <br /> Lab ID: C14050873-001A DUP Sample Duplicate Run:BAL-19_140530A 05/30/14 16:01 <br /> Solids,Total Dissolved TDS @ 180 C 2560 mg/L 10 0.7 5 <br /> Lab ID: C14050873-002A MS Sample Matrix Spike Run:BAL-19_140530A 05/30/14 16:02 <br /> Solids,Total Dissolved TDS @ 180 C 4630 mg/L 10 93 90 110 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 6 of 20 <br />