2012-12-17_HYDROLOGY - M1977300 (3)

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ENERGY LABORATORIES Client: Cotter Corporation Project: Schwartz GW 9/26/2012 S26569 Analyte . ,F , � . wwrv.energylab.com ( Helena, MT 877- 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888 - 235 -0515 Analytical Excellence Shwa 1931 Gillette, WY 866 -686 -7175 • Rapid City, SD 888- 672 -1225 • College Station, TX 888 -690 -2218 Method: E200.7 Sample ID: MB- 121016A 2 Method Blank Magnesium 0.05 mg /L Sodium 0.6 mg /L Sample ID: LFB- 121016A Magnesium Sodium Qualifiers: RL - Analyte reporting limit. MDC - Minimum detectable concentration QA/QC Summary Report Prepared by Casper, WY Branch Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua! Method: E200.7 Analytical Run: ICP4- C_121016A Sample ID: ICV 2 Initial Calibration Verification Standard 10/16/12 14:31 Magnesium 49.7 mg /L 0.50 99 95 105 Sodium 501 mg /L 0.50 100 95 105 Sample ID: ICSA 2 Interference Check Sample A 10/16/12 14:45 Magnesium 496 mg /L 0.50 99 80 120 Sodium 0.192 mg /L 0.50 Sample ID: ICSAB 2 Interference Check Sample AB 10/16/12 14:49 Magnesium 496 mg /L 0.50 99 80 120 Sodium 0.232 mg /L 0.50 2 Laboratory Fortified Blank 48.3 mg /L 47.3 mg /L 0.01 0.2 Run: ICP4-C_121016A Run: ICP4 -C 121016A 0.50 96 85 115 0.50 93 85 115 Sample ID: 012100209 -006BMS2 2 Sample Matrix Spike Run: ICP4- C_121016A Magnesium 153 mg /L 1.0 98 70 130 Sodium 307 mg /L 1.0 89 70 130 ND - Not detected at the reporting limit. Revised Date: 10/26/12 Report Date: 10/22/12 Work Order: C12091083 Batch: R165915 10/16/12 15:07 10/16/12 15:11 10/16/12 16:00 Sample ID: C12100209- 006BMSD 2 Sample Matrix Spike Duplicate Run: ICP4- C_121016A 10/16/12 16:04 Magnesium 155 mg /L 1.0 100 70 130 1.4 20 Sodium 314 mg /L 1.0 96 70 130 2.2 20 Page 8 of 21