2011-06-27_REVISION - C1981022 (3)

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TABLE Z 05.4 -T1 SURFACE DISTURBANCE'SUMMARY Area Disturbance (acres) Reference Drawing Elk Creek Coal Handling, Support, and Ancillary Facilities 39.0 Map 2.05 -M1, General Facilities Exhibit 2.05 -E1, Facilities Details Sanborn Creek Mine Surface Facilities 4.1 Map 2.05 -M1, General Facilities Exhibit 2.05 -E1, Facilities Details West Valley Coal Refuse Facility and Haul Road 12.9 Map 2.05 -M1, General Facilities Exhibit 2.05 -E4, Mine Development Rock/Coal Refuse Facility Elk Creek Mine Surface Facilities (of total 8.6 is new and 15.6 is existing) 24.2 Map 2.05 -M1, General Facilities Map 2.05 -M3, Facilities Details II West Coal Refuse Facility 8.8 Map 2.05 -M1 General Facilities Exhibit 2.05 -E4, Mine Development Rock/Coal refuse Facility Designs Satellite Facilities Upper Hubbard Creek Facilities Area 3.3 Map 2.05 -M1, General Facilities Map 2.05 -E1, Facilities Details Lower Hubbard Creek Facilities Area 2.6 Map 2.05 -M1, General Facilities Map 2.05 -E1, Facilities Details Hubbard Creek Power Line Road 0.7 Map 2.05 -M1, General Facilities Exhibit 2.05 -E1 Facilities Designs Bear Creek Facilities Area 3.0 Map 2.05 -M1, General Facilities Exhibit 2.05 -E1, Facilities Details Water Treatment Plant Area 1.5 Map 2.05 -M1, General Facilities Sewage Effluent Absorption Field 0.3 Map 2.05 -M1, General Facilities Substation No. 3 and C -Gulch Ventilation Installation 1.6 Map 2.05 -M1, General Facilities Coal Gulch Exploration Sites 0.4 Map 2.05 -M1, General Facilities Powerline Roads 17.0 Map 2.05 -M1, General Facilities Degas Well Sites (CBM -1- 15) and Roads 7.1 Map 2.05 -M1, General Facilities Elk Creek Mine Gob Vent boreholes and roads. 68.25 Map 2.05 -M1, General Facilities Bear Creek Shaft and Fan 2.3 Map 2.05 -M1, General Facilities Elk Creek Mine Exploration boreholes 3.91 Exhibit 2.04 -E3, Item 8 Map Subtotal — Satellite Facilities 111.96 Map 2.05 -M1, General Facilities Total 200.96 Section - 2.05.4 fences, etc.) until effective drainage can be reestablished. Any berms constructed to contain small drainage areas will be revegetated and left in place. The vegetative cover will help to stabilize the berms and over time the area on the uphill side of the berms will silt in completing the reclamation process. Regrading operations will be limited to existing disturbance areas and those immediately adjacent undisturbed areas necessary to provide for effective blending of regraded surfaces with the surrounding terrain. Fugitive dust emissions will be controlled during reclamation by periodic watering of roads and active reclamation areas. Soil materials will be sampled following replacement to verify suitability and will be stabilized by leaving the surface of the replaced soil in a roughened condition to minimize surface runoff and erosion and promote moisture infiltration and through application of straw or native hay mulch following seeding. Soil samples will be analyzed for the parameters of pH, acid -base potential, saturation percent, electrical conductivity, sodium adsorption ratio, selenium, boron, texture, nitrogen, phosphorus, and potassium. Any necessary application of soil supplements or fertiliser will be based on soil analysis results. Revegetation success will be determined based on the results of revegetation monitoring. Revegetation monitoring for reclaimed areas will occur in the third or fourth, ninth, and tenth year following permanent seeding. In general, revegetation success will be evaluated based on the parameters of cover, production and diversity by comparing monitoring data from reclaimed areas TR -71, 72 2.05 -50a Revised June 2011