2015-01-27_PERMIT FILE - C1996083A (2)

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2.05.6(6) (f)(iii)(C) No mining related surface disturbance will occur within 100 feet of the outside line of the WAPA transmission line right -of -way without a written finding from the Authorized Officer and consultation with the right -of -way holder. The WAPA transmission line right -of -way is 125 feet wide. Regarding the Jess Barrow Homestead Cabin, the Environmental Assessment DOI- BLM- CO -S050- 2013 -0010 dated September 2013 states that subsidence associated with the Spruce Stomp lease is expected to be minimal and would generally affect the area immediately overlying those areas that are mined. Two historic properties are located within the projected subsidence area; the remaining two significant sites would not be affected by subsidence. It has been determined that, while two historic properties are present within the projected subsidence area, it is not expected that they would be adversely affected by subsidence within the LBA tract (Lane, 2013). These sites would be monitored after project activities commence to ensure the continued integrity of both sites; if changes affecting the site are observed, stabilization or stipulations would be conducted in consultation with Tribes and Colorado SHPO. The Operator protected its facilities from rockfall by constructing one berm at the location shown on Map 15 -2 and in accordance with the design presented in Volume VII, Tab 11. No other protection measures are proposed. Subsidence monitoring stations are not proposed to determine when the potential for rockfalls might diminish. The Operator will assume rockfall hazard continues for two years after an outcrop is affected by mining. (f)(iv) A detailed description of the measures to be taken to mitigate the effects of any material damage or diminution of value or foreseeable use of lands which may occur. PR -14 2.05-165- 03/14