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• www.ew6ab.com Helena,MT$77-472-0711 -Billings,MT 800-735-4489-Casper,WY 888-235-0515 <br /> } °e'18lSt Gillette,WY$66-686-7175•Rapid City,SD 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: 07/30/14 <br /> Project: Schwartz -GW 07/10/14 S27633 and S27634 Work Order: C14070445 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: A2540 C Batch:TDS140714A <br /> Lab ID: MB-1 140714A Method Blank Run:BAL-1 9140714A 07/14/14 15:05 <br /> Solids,Total Dissolved TDS @ 180 C ND mg/L 7 <br /> Lab ID: LCS-2_140714A Laboratory Control Sample Run:BAL-19_140714A 07/14/14 15:05 <br /> Solids,Total Dissolved TDS @ 180 C 2000 mg/L 10 100 90 110 <br /> Lab ID: C14070436-004A MS Sample Matrix Spike Run:BAL-19_140714A 07/14/14 15:17 <br /> Solids,Total Dissolved TDS @ 180 C 7420 mg/L 10 100 90 110 <br /> Lab ID: C14070436-013A DUP Sample Duplicate Run:BAL-19_140714A 07/14/14 15:19 <br /> Solids,Total Dissolved TDS @ 180 C 8720 mg/L 10 0.9 5 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 8 of 25 <br />