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www.ene dab.com Helena,MT 877472-0711 -Billings,MT 800-7354489-Casper,WY 888-235-0515 <br /> - AN"W E=R ma S✓M IY52 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: 06/17/14 <br /> Project: Schwartz GW 5/22/14 S27512, S27513 Work Order: C14050752 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.7 Batch: R187072 <br /> Lab ID: C14050830-002BMSD 8 Sample Matrix Spike Duplicate Run: ICP4-C_140530A 05/30/14 14:00 <br /> Potassium 96.4 mg/L 1.0 94 70 130 0.7 20 <br /> Zinc 2.09 mg/L 0.010 104 70 130 0.1 20 <br /> Method: E200.7 Analytical Run: ICP4-C_140604A <br /> Lab ID: ICV Initial Calibration Verification Standard 06/04/14 14:27 <br /> Sodium 50.6 mg/L 0.50 101 95 105 <br /> Lab ID: ICSA Interference Check Sample A 06/04/14 14:42 <br /> Sodium -0.489 mg/L 0.50 <br /> Lab ID: ICSAB Interference Check Sample AB 06/04/14 14:46 <br /> Sodium -0.333 mg/L 0.50 <br /> Method: E200.7 Batch: R187229 <br /> Lab ID: MB-140604A Method Blank Run: ICP4-C 140604A 06/04/14 15:05 <br /> Sodium ND mg/L 0.2 <br /> Lab ID: LFB-140604A Laboratory Fortified Blank Run: ICP4-C_140604A 06/04/14 15:08 <br /> Sodium 48.6 mg/L 0.50 97 85 115 <br /> Lab ID: C14060022-001 BMS2 Sample Matrix Spike Run: ICP4-C_140604A 06/04/14 21:46 <br /> Sodium 229 mg/L 1.0 94 70 130 <br /> Lab ID: C14060022-001 BMSD Sample Matrix Spike Duplicate Run: ICP4-C_140604A 06/04/14 21:50 <br /> Sodium 228 mg/L 1.0 94 70 130 0.0 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 11 of 24 <br />