2012-01-06_PERMIT FILE - C1982057 (9)

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LIST OF TABLES • (Continued) 7-6 Calculation of Potential Evapotranspiration for the Period July 1979 through June 1980, Seneca II-W Mine 27 7-7 Site-Specific Aquifer Characteristics for Seneca II-W Mine 30 7-8 Summary of Specific Aquifer Characteristics for Seneca II-W Mine 32 7-9 Summary of Suspect Ground Water Chemistry Data 37 7-10 Percent Milliequivalents Per Liter -Watering Trough Gulch Alluvium Aquifer 38 7-11 Statistical Summary of All Data -Watering Trough Gulch Alluvium Aquifer 39 7-12 Percent Milliequivalents Per Liter -Hubberson Gulch Alluvium Aquifer 42 7-13 Statistical Summary of All Data -Hubberson Gulch Alluvium Aquifer 43 7-14 Percent Milliequivalents Per Liter -Wadge Overburden Aquifer 46 7-15 Statistical Summary of All Data -Wadge Overburden Aquifer 47 7-16 Percent Milliequivalents Per Liter -Wadge Coal Aquifer 50 7-17 Statistical Summary of All Data -Wadge Coal Aquifer 51 7-18 Percent Milliequivalents Per Liter -Wolf Creek Coal Aquifer 54 7-19 Statistical Summary of All Data -Wolf Creek Aquifer 55 7-20 Comparison of Seneca II-W Aquifer Chemistry with Water Quality Standards 59 • 7-21 Comparison of Transmissivity, Specific Capacity, and Well Potential Use 66 7-22 Summary of Information for Selected Springs at Seneca II-W 68 7-23 Range and Mean Values of Selected Water Quality Parameters for Spring Sites, Seneca II-W Mine 70 7-24 Comparison of Seneca II-W Spring Water Sites and Domestic Drinking Water Quality Standards 74 7-25 Comparison of Seneca II-W Spring Water Sites and Aquatic Life Water Quality Standards 77 7-26 Comparison of Seneca II-W Spring Water Sites and Irrigation Water Quality Standards 80 7-27 Comparison of Seneca II-W Spring Water Sites and Livestock Water Quality Standards 81 7-28 Premining Geomorphic Parameters of Basins to be Affected by Mining 90 7-29 Stream Channel Gradients for Select Reaches of Drainages in the Vicinity of the Seneca II Mine 91 7-30 Regression Equations and Coefficients Used to Determine Mean Annual and Peak Discharges for Drainages in and Proximate to the Seneca II-W Mine 93 7-31 Predicted Mean Annual Discharge and Peak Discharge for Select Recurrence • Intervals for Drainages in and Proximate to the Seneca II-W Mine 94 7-32 Snow Survey Data for the Hubberson Gulch Watershed -Winter 1980 97 v Revised 9/98