PERMFILE135861

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 9/2/2004
• Section_Exhibit Name: Exhibit 7 TOC ‎(worthless)‎
• Media Type: D
• Archive: Yes

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Exhibit 7
Hydrology Information
Vo1.2B 1) Ground Water Quality Colowyo Coal Mine, Lenoard Rice Consulting Water
Engineers, Inc., 1979
2) Colorado Discharge Permit System (CDP5) Permit, Stormwater Management
Plan (SMP), and Spill Prevention Containment and Control Plan (SPCC)
3) Design of Surface Runoff Control Structures Tipton and Kalmbach, Inc., 1979
4) Drainage Plan for Colowyo Coal Company Work Area, Tipton and Kalmbach,
Inc., 1979
5) Amended Application for Approval of Plan for Augmentation and for Changes
of Water Rights, 1980
6) Hydrologic and Erosional Characteristics of Regraded Surface Coal Mined
Land in Colorado, Striffler and Rhodes, 1981
7) Modification of both Surface Water Monitoring and Alluvial Groundwater
Monitoring Locations, 1991
8) Geotechnical Assessment East Taylor Pond, CTL/Thompson, Inc. 1995
9) Haulroad Culvert Redesign, 1997
10) Stoker Crusher Ditch, 1997
11) Small Depressions/Tanks, 1997
12) Section 16 Taylor Ditch, 1997
13) Superceded
Vo1.2C 14) Emergency Spillway, Temporary and Permanent Channel Designs, Existing
Structures, 1998
15) Stability Evaluation, Existing Sedimentation Pond Embankments,
CTL/'I'hompson Inc. 1998
16) Adjudicated and permitted surface and groundwater locations within 1 mile of
the Permit boundary
Vol. 2D SEDCAD Modeling and Pond Design Maps -Sedimentation Ponds, 2002
Vo1.2E SEDCAD Modeling and Pond Design Maps -Sedimentation Ponds, 2002
(continued)
Revision Date: 5/8/03
Revision No. TR-56