2015-03-23_REPORT - C1981019

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 3/23/2015
• Doc Name: Annual Hydrology Report & Reclamation Report
• From: Tri-State Generation and Transmission Association, Inc
• To: DRMS
• Annual Report Year: 2014
• Permit Index Doc Type: Hydrology Report
• Email Name: RDZ
• Email Name: MPB
• Media Type: D
• Archive: No

Colowyo Coal Company
2014 Annual Reclamation and Hydrology Report
GENERAL DISCUSSION .......................................................................................... ............................... 1
FIGURE 11 -1 —RECLAMATION AREAS AND TOPSOIL DEPTHS ...................................... ............................... 2
FIGURE 11 -2 - TOPSOIL STOCKPILE VOLUME BY YEAR ............................................... ............................... 4
FIGURE 11 -3 — TOPSOIL MOVEMENTS DURING REPORT PERIOD .................................. ............................... 5
FIGURE 11-4 - TOPSOIL SCHEDULE FOR MINING AREA ................................................ ............................... 6
FIGURE 11-5 — VARIABLE DEPTH TOPSOIL VERIFICATION ........................................... ............................... 7
SECTION 12 — DRILL HOLE LOCATIONS ........................................................ ............................... 1
RULE REQUIREMENT ............................................................................................. ............................... 1
GENERALDISCUSSION .......................................................................................... ............................... 1
SECTION 13 — BOND RELEASE .......................................................................... ............................... 1
RULEREQUIREMENT ............................................................................................. ............................... 1
GENERALDISCUSSION .......................................................................................... ............................... 1
SECTION 14 —DITCH CONSTRUCTION CERTIFICATIONS .......................... ............................... 1
RULEREQUIREMENT ............................................................................................. ............................... 1
GENERALDISCUSSION .......................................................................................... ............................... 1
FIGURE 14 -1 - FINAL EAST PIT DITCH LOCATION MAP ............................................... ............................... 3
FIGURE 14 -2 — WEST PIT FILL DITCH LOCATION MAP ................................................ ............................... 4
FIGURE 14 -3 — WEST TAYLOR FILL - WEST AND EAST TRIBUTARY DITCH LOCATION MAP ....................... 5
FIGURE 14-4 — FINAL EAST PIT DITCH SLOPE PROFILE ................................................ ............................... 6
FIGURE 14 -5 — WEST PIT FILL DITCH SLOPE PROFILE ................................................. ............................... 7
FIGURE 14 -6 — WEST TAYLOR FILL — WEST TRIBUTARY DITCH SLOPE PROFILE ......... ............................... S
FIGURE 14 -7 — WEST TAYLOR FILL — EAST TRIBUTARY DITCH SLOPE PROFILE .......... ............................... 9
SECTION 15 WEED MANAGEMENT ............................................................... ............................... 1
RULEREQUIREMENT ............................................................................................. ............................... 1
GENERALDISCUSSION .......................................................................................... ............................... 1
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