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� www.enerdakcom Helena,Wr 877-472-0711 •Billings,MY 880-735-4480•Casper,WY 888-235-0515 <br /> - Aayllalf MMn2""rsllst Gillette,WY 866-686-7175•Rapid City,SO 888-672.1225•College Station,TX IW690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 07/29/14 <br /> Project: Schwartz-SW 7/7/14 S27627 and S27628 Work Order: C14070267 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.7 Analytical Run: ICP4-C_140714B <br /> Lab ID: ICV 5 Initial Calibration Verification Standard 07/14/14 12:16 <br /> Calcium 50.9 mg/L 0.50 102 95 105 <br /> Iron 5.06 mg/L 0.030 101 95 105 <br /> Magnesium 50.3 mg/L 0.50 101 95 105 <br /> Potassium 51.0 mg/L 0.50 102 95 105 <br /> Sodium 50.9 mg/L 0.50 102 95 105 <br /> Lab ID: ICSA 5 Interference Check Sample A 07/14/14 12:30 <br /> Calcium 460 mg/L 0.50 92 80 120 <br /> Iron 177 mg/L 0.030 89 80 120 <br /> Magnesium 497 mg/L 0.50 99 80 120 <br /> Potassium 0.00439 mg/L 0.50 <br /> Sodium 0.188 mg/L 0.50 <br /> Lab ID: ICSAB 5 Interference Check Sample AB 07/14/14 12:34 <br /> Calcium 448 mg/L 0.50 90 80 120 <br /> Iron 178 mg/L 0.030 89 80 120 <br /> Magnesium 499 mg/L 0.50 100 80 120 <br /> Potassium 0.00263 mg/L 0.50 <br /> Sodium 0.135 mg/L 0.50 <br /> Method: E200.7 Batch:R188581 <br /> Lab ID: MB-140714A 5 Method Blank Run: ICP4-C 140714B 07/14/14 12:53 <br /> Calcium ND mg/L 0.01 <br /> Iron ND mg/L 0.005 <br /> Magnesium ND mg/L 0.01 <br /> Potassium ND mg/L 0.06 <br /> Sodium ND mg/L 0.01 <br /> Lab ID: LFB-140714A 5 Laboratory Fortified Blank Run: ICP4-C_140714B 07/14/14 12:57 <br /> Calcium 48.4 mg/L 0.50 97 85 115 <br /> Iron 0.960 mg/L 0.030 96 85 115 <br /> Magnesium 47.7 mg/L 0.50 95 85 115 <br /> Potassium 53.0 mg/L 0.50 106 85 115 <br /> Sodium 50.3 mg/L 0.50 101 85 115 <br /> Lab ID: C14070237-012BMS2 5 Sample Matrix Spike Run: ICP4-C_140714B 07/14/14 21:50 <br /> Calcium 511 mg/L 1.0 92 70 130 <br /> Iron 4.83 mg/L 0.030 95 70 130 <br /> Magnesium 266 mg/L 1.0 94 70 130 <br /> Potassium 281 mg/L 1.0 96 70 130 <br /> Sodium 741 mg/L 1.2 93 70 130 <br /> Lab ID: C14070237-012BMSD 5 Sample Matrix Spike Duplicate Run: ICP4-C_140714B 07/14/14 21:54 <br /> Calcium 512 mg/L 1.0 93 70 130 0.3 20 <br /> Iron 4.83 mg/L 0.030 95 70 130 0.0 20 <br /> Magnesium 267 mg/L 1.0 94 70 130 0.3 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 12 of 28 <br />