REP34915

• Permit No: M1977342
• IBM Index Class Name: Report
• Doc Date: 9/24/2001
• Doc Name: HENDERSON MILL TAILING POND HYDROLOGY REPORT
• Media Type: D
• Archive: No

TABLE OF CONTENTS
' Tables
Table 1 Calibrated Material Conductivity Values
' Table 2 Material Properties for Stability Analyses
Table 3 Summary of Stability Analysis

Figures
' Figure 1 Existing Dam Height Calibrated Phreatic Surface from Piezometric Readings
Figwe 2 Existing Dam Height Phreatic Surface Following PMP Event (Base Case)
' Figwe 3 Existing Dam Height Phreatic Surface Following PMP Event (Base Case X 10)
Figwe 4 Ultimate Dam Height Projected Phreatic Surface
' Figure 5 Ultimate Dam Height Phreatic Surface Following PMP Event (Base Case X 10)
Figure 6 Ultimate Dam Height Post-Closwe Phreatic Surfaces
' Figure 7 Existing Dam Height Post-Seismic Stability Following PMP Event
Figure 8 Existing Dam Height Static Undrained Stability Following PMP Event
Figure 9 Ultimate Dam Height Post-Seismic Stability for Normal Operating Pond
' Conditions
Figure 10 Ultimate Dam Height Post-Seismic Stability Following PMP Event
' Figwe 11 Ultimate Dam Height Static Undrained Stability Following PMP Event
Figure 12 Ultimate Dam Height Post-Closwe Post-Seismic Stability after ] 0 years of
' Drawing Down the PMP Pool
Figure 13 Ultimate Dam Height Post-Closwe Static Undrained Stability after 10 years of
' Drawing Down the PMP Pool

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