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www energylab.com Helena,MT 877-472-0711 •Billings,MT 801-735-4482•Casper,WY 888-235-0515 <br /> 'r Gillette,WY 866-686-7175•Rapid City,SD 88B-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: 06/02/14 <br /> Project: Schwartz-SW 5/1/14 S27472 thru S27475 and S27467 Work Order: C14050155 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> i <br /> Method: E200.7 Analytical Run: ICP4-C_140508A <br /> Lab ID: ICV 5 Initial Calibration Verification Standard 05/08/14 15:39 <br /> Calcium 50.1 mg/L 0.50 100 95 105 <br /> Iron 5.00 mg/L 0.030 100 95 105 <br /> Magnesium 50.2 mg/L 0.50 100 95 105 <br /> Potassium 52.3 mg/L 0.50 105 95 105 <br /> Sodium 51.5 mg/L 0.50 103 95 105 <br /> Lab ID: ICSA 5 Interference Check Sample A 05/08/14 15:53 <br /> Calcium 458 mg/L 0.50 92 80 120 <br /> Iron 176 mg/L 0.030 88 80 120 <br /> Magnesium 499 mg/L 0.50 100 80 120 <br /> Potassium -0.0382 mg/L 0.50 <br /> Sodium -0.528 mg/L 0.50 <br /> Lab ID: ICSAB 5 Interference Check Sample AB 05/08/14 15:58 <br /> Calcium 461 mg/L 0.50 92 80 120 <br /> Iron 176 mg/L 0.030 88 80 120 <br /> Magnesium 504 mg/L 0.50 101 80 120 <br /> Potassium -0.0408 mg/L 0.50 <br /> Sodium -0.473 mg/L 0.50 <br /> Method: E200.7 Batch: R186364 <br /> Lab ID: MB-140508A 5 Method Blank Run: ICP4-C_140508A 05/08/14 16:16 <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-140508A 5 Laboratory Fortified Blank Run: ICP4-C_140508A 05/08/14 16:20 <br /> Calcium 47.4 mg/L 0.50 95 85 115 <br /> Iron 0.954 mg/L 0.030 95 85 115 <br /> Magnesium 48.3 mg/L 0.50 97 85 115 <br /> Potassium 53.6 mg/L 0.50 107 85 115 <br /> Sodium 50.9 mg/L 0.50 102 85 115 <br /> Lab ID: C14050014-001CMS2 5 Sample Matrix Spike Run: ICP4-C_140508A 05/08/14 19:17 <br /> Calcium 126 mg/L 1.0 95 70 130 <br /> Iron 2.00 mg/L 0.030 96 70 130 <br /> Magnesium 106 mg/L 1.0 95 70 130 <br /> Potassium 100.0 mg/L 1.0 96 70 130 <br /> Sodium 110 mg/L 1.0 94 70 130 <br /> Lab ID: C14050014-001CMSD 5 Sample Matrix Spike Duplicate Run: ICP4-C_140508A 05/08/14 19:21 <br /> Calcium 127 mg/L 1.0 96 70 130 1.0 20 <br /> Iron 2.04 mg/L 0.030 97 70 130 1.6 20 <br /> Magnesium 107 mg/L 1.0 96 70 130 1.2 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 16 of 35 <br />