PERMFILE47750

• Permit No: C1981026
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: GENERAL DESCRIPTION OF GEOLOGY AND HYDROLOGY
• Section_Exhibit Name: APPENDIX C - PART 1 0F 3
• Media Type: D
• Archive: No

TABLE OF CONTENTS - Continued
• PAGE
HYDROLOGY OF PIT 1 - FEDERAL COAL LEASE NO. C-27931
GROUNDWATER INFORMATION 49
SURFACE WATER INFORMATION 51
ALTERNATIVE WATER SUPPLY INFORMATION 54
HYDROLOGY OF PIT 2 - FEDERAL COAL LEASE N0. C-30168
GROUNDWATER 56
Geologic Setting 56
Aquifer Characteristics 58
Analysis of Tests 65
Groundwater Uses 68
Groundwater Quality 68
SURFACE WATER 69
ALTERNATIVE WATER SUPPLY INFORMATION 72
FIGURE 1 - Coal Regions and Fields in Colorado 2
• FIGURE 2 - Generalized Stratigraphic Column of the North 3
Park Area
FIGURE 3 - Schematic Diagrams of Piezometer Completions 63
TAHLE 1 - Summary of Drill Hole Data Federal Coal 8
Lease C-279 31
TABLE 2 - Summary of As Receive d Quality Data - Pit 1 12
Vicinity
TABLE 3 - Overburden Parameters - Pit 1 17
TABLE 4 - Overburden Analyses - Pit 1 18
TABLE 5 - Statistical Analysis of Overburden Analyses 22
Pit 1
TABLE 6 - Summary of Drill Hole Data - Federal Coal 26
Lease No. C -30168 and Vicinity
TABLE 7 - Summary of As Receive d Quality Data - Pit 2 30
Vicinity
TABLE 8 - Overburden Analysis I nvervals - Pit 2 34
TABLE 9 - Overburden Parameters - Pit 2 37
TABLE 10 - Overburden Analyses - Pit 2 38
TABLE 11 - Statistical Analysis of Overburden Analyses 45
. Pit 2