2017-02-15_REVISION - C1996083 (2)

Home Browse Search

A-13 • During construction or maintenance activities in proximity to the 200-foot riparian buffer zone, the edge of the buffer zone shall be marked for avoidance by construction equipment and activities. • Within the Terror Creek watershed, only fresh water, free of chemicals or other contaminants, may be used for dust abatement activities. • Within the Terror Creek watershed, additional crossings of perennial streams will not be constructed • The BLM or USFS hydrologist must approve, in advance, the size and composition of riprap material to be used in the East Fork of Terror Creek. • Lessee must report their annual water depletions to the BLM UFO by September 30 each calendar year. This includes depletions that result from surface activities associated with coal mining related activities within the Action Area, regardless of surface ownership. • No surface disturbance, such as road widening or upgrading would occur within 200 feet of GBCT occupied habitat, as measured from the normal high water mark, to protect delineated wetlands or riparian areas and maintain riparian vegetation and eliminate potential effects to the greenback cutthroat trout, unless exceptions were approved by the Authorized Officer. • Site-specific surveys for sensitive plants would be conducted onsite prior to the development of any surface facilities or to other soil-disturbance activities. • There would be no surface occupancy or soil-disturbing activities within a 100-foot radius of sensitive plant locations unless exceptions were approved by the Authorized Officer. • Application of herbicides, surfactants, and other weed control measures would avoid overspray or drift onto desirable species or sensitive plants. • If subsidence adversely affects surface resources in any way (including, but not limited to a documented water loss), the coal lessee, at their expense, will be responsible to: restore stream channels, stock ponds, protect stream flow with earthwork or temporary culverts, restore affected roads, or provide other measures to repair damage or replace any surface water and/or developed groundwater source, water conveyance facilities, with water from an alternate source in sufficient quantity and quality to maintain existing riparian habitat, and wildlife use, as authorized by 36 CFR 251. An appropriate augmentation plan for replacement water will be decreed prior to commencing mining activities and will consider drought conditions and the limitations of local water supplies. • The lessee/operator would design the layout of longwall panels to minimize impacts to West Fork Terror Creek. Primarily, this will consist of orienting panels approximately parallel with the creek as currently proposed and represented in the Subsidence Report (WWE, 2013a), thus reducing the number and severity of transitions from subsidence to non-subsidence zones. • The lessee/operator would design and implement a stream flow measurement