2019-02-22_REPORT - C1981019 ‎(2)‎

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 2/22/2019
• Doc Name: Annual Reclamation Report
• From: Tri-State Generation and Transmission Association, Inc
• To: DRMS
• Annual Report Year: 2018
• Permit Index Doc Type: Annual Reclamation Report
• Email Name: ZTT
• Media Type: D
• Archive: No

Colowyo Coal Company
2018 Annual Reclamation and Hydrology Report
SECTION 1 — SURFACE AND GROUND WATER DATA.................................................................3
RULEREQUIREMENT............................................................................................................................3
GENERALDISCUSSION.........................................................................................................................3
GENERALDISCUSSION.......................................................................................................................28
GENERAL TRENDS — SURFACE WATER..................................................................................................5
FIGURE 5-1 - TOPSOIL STOCKPILE FOR REPORT YEAR..............................................................................29
GENERALTRENDS — GROUNDWATER..................................................................................................10
FIGURE 5-2 — TOPSOIL MOVEMENTS DURING REPORT PERIOD.................................................................30
SPOIL SPRING DEVELOPMENT..........................................................................................................16
SECTION 6 — DRILL HOLE LOCATIONS........................................................................................32
SECTION 2 — CDRMS ARR FORM AND SUPPORT DOCUMENTS..............................................18
RULEREQUIREMENT..........................................................................................................................32
RULEREQUIREMENT..........................................................................................................................18
GENERALDISCUSSION.......................................................................................................................32
GENERALDISCUSSION.......................................................................................................................18
SECTION 7 —DITCH CONSTRUCTION CERTIFICATIONS..........................................................33
ANNUALMAP........................................................................................................................................18
RULEREQUIREMENT..........................................................................................................................33
SEEDTAGS.............................................................................................................................................19
GENERALDISCUSSION.......................................................................................................................33
BONDRELEASE....................................................................................................................................19
SECTION8 —WEED MANAGEMENT...............................................................................................34
FIGURE 2-1 — COMPLETED CDRMS ANNUAL RECLAMATION REPORT FORM...........................................20
RULEREQUIREMENT..........................................................................................................................34
FIGURE 2-2 — COLOWYO RECLAMATION TABLE........................................................................................21
GENERALDISCUSSION.......................................................................................................................34
FIGURE2-3 - COPIES OF SEED TAGS..........................................................................................................23
SECTION 3 — REGRADED OVERBURDEN SAMPLING................................................................25
RULEREQUIREMENT..........................................................................................................................25
GENERAL DISCUSSION.......................................................................................................................25
FIGURE 3-1 — REGRADED OVERBURDEN ANALYTICAL RESULTS..............................................................26
SECTION 4 — INTERIM REVEGETATION MONITORING REPORT..........................................27
RULEREQUIREMENT..........................................................................................................................27
GENERALDISCUSSION.......................................................................................................................27
SECTION 5 TOPSOIL VOLUME INVENTORY 28
RULEREQUIREMENT..........................................................................................................................28
GENERALDISCUSSION.......................................................................................................................28
FIGURE 5-1 - TOPSOIL STOCKPILE FOR REPORT YEAR..............................................................................29
FIGURE 5-2 — TOPSOIL MOVEMENTS DURING REPORT PERIOD.................................................................30
SECTION 6 — DRILL HOLE LOCATIONS........................................................................................32
RULEREQUIREMENT..........................................................................................................................32
GENERALDISCUSSION.......................................................................................................................32
SECTION 7 —DITCH CONSTRUCTION CERTIFICATIONS..........................................................33
RULEREQUIREMENT..........................................................................................................................33
GENERALDISCUSSION.......................................................................................................................33
SECTION8 —WEED MANAGEMENT...............................................................................................34
RULEREQUIREMENT..........................................................................................................................34
GENERALDISCUSSION.......................................................................................................................34
LIST OF EXHIBITS
EXHIBIT 1 — SURFACE WATER DATA REPORT
EXHIBIT 1 B — GROUND WATER DATA REPORT
EXHIBIT 2A —ANNUAL REPORT MAP EAST, WEST, & SOUTH TAYLOR PITS
Page i