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9MMIC3, <br /> www.energylab.com Helena,MT 877-472-0711 •Billings,MT 800-735-4489•Casper,WY 888-235-0515 <br /> Sbu y Gillette,WY 866-686-7175•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: 05/21/14 <br /> Project: Schwartz-SW 5/1/14 S27466 Work Order: C14050047 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.7 Analytical Run: ICP4-C_140513A <br /> Lab ID: ICV 5 Initial Calibration Verification Standard 05/13/14 14:41 <br /> Calcium 50.6 mg/L 0.50 101 95 105 <br /> Iron 5.05 mg/L 0.030 101 95 105 <br /> Magnesium 50.5 mg/L 0.50 101 95 105 <br /> Potassium 50.6 mg/L 0.50 101 95 105 <br /> Sodium 50.8 mg/L 0.50 102 95 105 <br /> Lab ID: ICSA 5 Interference Check Sample A 05/13/14 14:56 <br /> Calcium 457 mg/L 0.50 91 80 120 <br /> Iron 174 mg/L 0.030 87 80 120 <br /> Magnesium 491 mg/L 0.50 98 80 120 <br /> Potassium -0.00465 mg/L 0.50 <br /> Sodium -0.338 mg/L 0.50 <br /> Lab ID: ICSAB 5 Interference Check Sample AB 05/13/14 15:00 <br /> Calcium 454 mg/L 0.50 91 80 120 <br /> Iron 173 mg/L 0.030 87 80 120 <br /> Magnesium 490 mg/L 0.50 98 80 120 <br /> Potassium 0.000950 mg/L 0.50 <br /> Sodium -0.387 mg/L 0.50 <br /> Method: E200.7 Batch: R186515 <br /> Lab ID: MB-140513A 5 Method Blank Run: ICP4-C_140513A 05/13/14 15:19 <br /> Calcium ND mg/L 0.02 <br /> Iron ND mg/L 0.002 <br /> Magnesium ND mg/L 0.02 <br /> Potassium ND mg/L 0.04 <br /> Sodium ND mg/L 0.2 <br /> Lab ID: LFB-140513A 5 Laboratory Fortified Blank Run: ICP4-C_140513A 05/13/14 15:23 <br /> Calcium 47.3 mg/L 0.50 95 85 115 <br /> Iron 0.944 mg/L 0.030 94 85 115 <br /> Magnesium 47.1 mg/L 0.50 94 85 115 <br /> Potassium 47.6 mg/L 0.50 95 85 115 <br /> Sodium 47.3 mg/L 0.50 95 85 115 <br /> Lab ID: C14050049-002CMS2 5 Sample Matrix Spike Run: ICP4-C_140513A 05/13/14 16:27 <br /> Calcium 249 mg/L 1.0 90 70 130 <br /> Iron 1.96 mg/L 0.030 95 70 130 <br /> Magnesium 107 mg/L 1.0 95 70 130 <br /> Potassium 105 mg/L 1.0 99 70 130 <br /> Sodium 148 mg/L 1.0 96 70 130 <br /> Lab ID: C14050049-002CMSD 5 Sample Matrix Spike Duplicate Run: ICP4-C_140513A 05/13/14 16:31 <br /> Calcium 245 mg/L 1.0 86 70 130 1.7 20 <br /> Iron 1.93 mg/L 0.030 93 70 130 1.7 20 <br /> Magnesium 105 mg/L 1.0 93 70 130 1.9 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 12 of 27 <br />