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• The BLM or USFS hydrologist must approve, in advance, the size and composition of <br />riprap material to be used in the East Fork of Terror Creek.. <br />• Lessee must report their annual water depletions to the BLM UFO by September 30 each <br />calendar year. This includes depletions that result from surface activities associated with <br />coal mining related activities within the project area, regardless of surface ownership. <br />• Site - specific surveys for sensitive plants will be conducted onsite prior to the <br />development of any surface facilities or to other soil- disturbance activities. <br />• There will be no surface occupancy or soil- disturbing activities within a 100 -foot radius <br />of sensitive plant locations unless exceptions are approved by the Authorized Officer. <br />• Application of herbicides, surfactants, and other weed control measures will avoid <br />overspray or drift onto desirable species or sensitive plants.. <br />• If subsidence adversely affects surface resources in any way (including, but not limited to <br />a documented water loss), the coal lessee, at their expense, will be responsible to: restore <br />stream channels, stock ponds, protect stream flow with earthwork or temporary culverts, <br />restore affected roads, or provide other measures to repair damage or replace any surface <br />water and/or developed groundwater source, water conveyance facilities, with water from <br />an alternate source in sufficient quantity and quality to maintain existing riparian habitat, <br />and wildlife use, as authorized by 36 CFR 251. Prior to commencing raining activities <br />that could cause subsidence, an appropriate augmentation plan for replacement water will <br />be decreed. The augmentation plan will consider drought conditions and the limitations <br />of local water supplies. <br />• The lessee /operator will design the layout of longwall panels to minimize impacts to <br />West Fork Terror Creek. Primarily, this will consist of orienting panels approximately <br />parallel with the creek as currently proposed and represented in the Subsidence Report <br />(WWE, 2013x), thus reducing the number and severity of transitions from subsidence to <br />non-subsidence zones. <br />The lessee /operator will design and implement a stream flow measurement program. The <br />program will consist of establishing monitoring stations upstream and downstream of the <br />expected subsidence area on West Fork Terror Creek. Flow monitoring stations will be <br />designed and calibrates) by water resource engineers and will focus on consistent <br />measurements of low and base flow conditions (i.e., summer through late fall)_ <br />Lessee /operator staff will have trained staff available to record flow measurements on a <br />minimum monthly schedule, weather permitting, with the ability to obtain measurements <br />more frequently as deemed appropriate. Flow data will be compiled into an annual report <br />that will include comparisons to previously collected data. This report will be submitted <br />to the BLM, USES and U.S. Fish and Wildlife Service (USFWS). <br />The lessee /operator will conduct fish, sediment and macroinvertebrate sampling (as <br />performed by WWE and MEC in 2012) on a biennial schedule during mining activities <br />and twice following mining activities (at 5 and 10 year periods) underneath West Fork <br />Terror Creek prior to bond release. A report will be distributed to the BLM, USES, and <br />the USFWS documenting if statistically significant declines are observed related to <br />mining activities. <br />M <br />