Project limits include 2.77 acres, with an expected disturbance of approximately 2 acres within project boundaries. Project limits for the offsite waste area(s) include 3.28 acres, with an expected disturbance of approximately 1 acre. A total of 0.8 acres of trees will be disturbed. If required, AML will elect to make a payment to the Imperiled Bat Conservation Fund in accordance with a determination from USFWS. The project site has 6 mine portals 5 in the Elkhorn No. 3 seam and one in the Elkhorn No. 2 seam. The portal in the Elkhorn No. 2 seam is used by a neighbor to provide water for livestock. One of the portals is collapsed and requires no additional work, but the other 5 will be closed with wildlife accessible closures. The portal in the Elkhorn No. 2 seam will be closed with a rebar closure (AML 40-20-5 and 40-20-7) with a man door installed (AML 40-20-9) and an 8 inch drainage pipe installed in the 1 foot concrete pad for the rebar. Subdrain will be installed along the benches in front of all mine portals and an excavated rock channel (AML 21-60-1) will be constructed below the portals in the Elkhorn No. 3 and Elkhorn No. 2 seams with concrete block tied mat placed across the yard discharging to Tackett Fork. A slide of roughly 0.5 acres has developed behind the residence. The slide will be removed by excavating to rock. A combination rock ditch-drain (AML 22-30-4) will be constructed along the base of the mountain behind the residence with drainage diverted to a drop box south of the garage. Additionally, 70 linear feet (280 square feet) of concrete-block tied mat will be placed along the slope at the garage with drainage flowing to the same drop box. From that drop box, it will flow through 70 linear feet of 24 inch DWPP pipe to Tackett Fork. Trees in excess of 3 inches diameter at breast height may require removal in the area of the portals. All trees removed as part of the project must be relocated to the waste area for burning. Residential seeding is included to revegetate disturbed areas on the property with other revegetation bid items included to revegetate the slide area and waste areas. Access to the project site and waste area is via county or state roads and private driveways. Repairs to the driveway are included in the bid items. Construction disturbances will be kept to a minimum with a stringently formulated sediment and erosion control program. Prior to beginning any major earth disturbance, all silt control measures will be installed. This includes silt barriers (bales & silt fence) at the project site and the waste area. The strict implementation and enforcement of standard AML sediment and erosion control Best Management Practices (BMPs) will prevent significant amounts of sediments disturbed by project related activities from entering area streams to create indirect impacts to aquatic resources.
