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•01 www.etwdab.com Helena,MT 877-472-0711 •Billings,MT 801-735-4489•Casper,WY 888-235-0515 <br /> ,t Ercagoxuarsme't932 Gillette,WY 866486-7175•Rapid City,SD BBB-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 /> I <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.7 Batch: R1863641 <br /> Lab ID: C14050014-001CMSD 5 Sample Matrix Spike Duplicate Run: ICP4-C_140508A 05/08/14 19:21 <br /> Potassium 105 mg/L 1.0 100 70 130 4.5 20 <br /> Sodium 112 mg/L 1.0 96 70 130 2.2 20 <br /> Method: E200.7 Analytical Run: ICP4-C_140509A <br /> Lab ID: ICV Initial Calibration Verification Standard 05/12/14 14:21 <br /> Boron 0.980 mg/L 0.10 98 95 105 <br /> Lab ID: ICSA Interference Check Sample A 05/12/14 14:35 <br /> Boron 0.00329 mg/L 0.10 <br /> Lab ID: ICSAB Interference Check Sample AB 05/12/14 14:40 <br /> Boron 0.000380 mg/L 0.10 <br /> Method: E200.7 Batch:41320 <br /> Lab ID: MB-41320 Method Blank Run: ICP4-C 140509A 05/12/14 15:09 <br /> Boron 0.005 mg/L 0.003 <br /> Lab ID: LCS3-41320 Laboratory Control Sample Run: ICP4-C_140509A 05/12/14 15:13 <br /> Boron 0.506 mg/L 0.050 100 85 115 <br /> Lab ID: C14050155-005DMS3 Sample Matrix Spike Run: ICP4-C_140509A 05/12/14 16:06 <br /> Boron 0.507 mg/L 0.050 99 70 130 <br /> Lab ID: C14050155-005DMSD Sample Matrix Spike Duplicate Run: ICP4-C_140509A 05/12/14 16:09 <br /> Boron 0.514 mg/L 0.050 100 70 130 1.4 20 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration <br /> Page 17 of 35 <br />