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• . _ www.ewdab.com Helena, NT 877-472 -0711 • Billings, Mr 800 - 735-4489 - Casper, WY 888- 235 -0515 <br />' °C1ITT Gillette, WY 866 -666 -7175 • Rapid City, SD 886 -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: 09/30/14 <br />Project: Schwartz -GW 9/10/14 S27680,S27681 Work Order: C14090456 <br />Analyte <br />Count Result Units <br />RL <br />%REC Low Limit <br />High Limit <br />RPD <br />RPDLimit Qual <br />Method: <br />E200.7 <br />Batch: R191066 <br />Lab ID: <br />C14090461- 001BMS2 7 Sample Matrix Spike <br />Run: ICP4- C_140912B <br />09/12/14 16:36 <br />Aluminum <br />9.20 mg /L <br />0.13 <br />89 <br />70 <br />130 <br />Calcium <br />806 mg /L <br />1.0 <br />90 <br />70 <br />130 <br />Iron <br />9.46 mg /L <br />0.049 <br />92 <br />70 <br />130 <br />Magnesium <br />599 mg /L <br />1.0 <br />91 <br />70 <br />130 <br />Manganese <br />9.48 mg /L <br />0.015 <br />90 <br />70 <br />130 <br />Potassium <br />463 mg /L <br />1.0 <br />90 <br />70 <br />130 <br />Sodium <br />2100 mg /L <br />2.5 <br />82 <br />70 <br />130 <br />Lab ID: <br />014090461- 001BMSD 7 Sample Matrix Spike Duplicate <br />Run: ICP4- C_140912B <br />09/12/14 16:39 <br />Aluminum <br />9.47 mg /L <br />0.13 <br />91 <br />70 <br />130 <br />2.9 <br />20 <br />Calcium <br />814 mg /L <br />1.0 <br />92 <br />70 <br />130 <br />1.1 <br />20 <br />Iron <br />9.53 mg /L <br />0.049 <br />93 <br />70 <br />130 <br />0.7 <br />20 <br />Magnesium <br />607 mg /L <br />1.0 <br />92 <br />70 <br />130 <br />1.2 <br />20 <br />Manganese <br />9.49 mg /L <br />0.015 <br />90 <br />70 <br />130 <br />0.1 <br />20 <br />Potassium <br />473 mg /L <br />1.0 <br />92 <br />70 <br />130 <br />2.1 <br />20 <br />Sodium <br />2140 mg /L <br />2.5 <br />90 <br />70 <br />130 <br />1.8 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 11 of 25 <br />