2008-03-05_REVISION - M1997054 ‎(24)‎

• Permit No: M1997054
• IBM Index Class Name: REVISION
• Doc Date: 3/5/2008
• Doc Name: Extension Request
• From: Civil Resources, LLC
• To: DRMS
• Type & Sequence: TR4
• Media Type: D
• Archive: No

TABLE OF CONTENTS
Introduction ........................................................................................................... ....................................................................1
Overview of Existing Hydrogeologic Conditions .................................... .................................................................... 2
General Characterization ............................................................................. .................................................................... 2
Surrounding Structures ................................................................................ .................................................................... 3
groundwater management during mining ............................................................................................................... 4
Parkdale Mine Analytical Ground Water Model .......................................................................................................... 4
Model Development - Assumptions and Conceptualization ............................................................................ 5
Model Inputs ..................................................................................................... ....................................................................
6
Simulation of Impacts of the Dewatering Operation ............................................................................................ 6
Sensitivity Analysis ....................................................................................... ..................................................................... 7
Estimating Effects South of the Arkansas River ..................................... ..................................................................... 7
Potential Grounwater Impacts from the Granite Quarry 8
Conclusions and Recommendations ........................................................... .....................................................................9
Collection of Monitoring Data ................................................................... .....................................................................9
Mitigation of Impacts During Mining ..................................................... ..................................................................... 9
Pre-ReclAmation Site Modeling and Post-Reclamation Impacts ..................................................................10
References ............................................................................................................. ...................................................................11
Appendix A - Vicinity map .............................................................................. ...................................................................12
Appendix13 - Hydrogeology summary report ......................................... ...................................................................13
Appendix c - Permitted well locations .........................................................................................................................14
Appendix D - Analytical model summary tables ......................................................................................................15
Appendix E - Analytical model figures ...................................................... ...................................................................16
Appendix F - Geologic maps ......................................................................... ....................................................................17