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All utility and surface structures within the permit area service only the Deserado Mine except for <br />several public roads. Subsidence may impact several of the Deserado Mine's structures including the <br />haul road, overland conveyor, slot storage facilities, power lines and monitoring wells. During the active <br />subsidence, these facilities are monitored and corrected as described in Section III.A.7.h, Damage <br />Mitigation. Potential damage to these structures would only affect the Deserado Mine with no risk of <br />offsite impacts. Surface facilities are discussed in Sections III.B and III.C. All wells within the permit <br />area are owned and controlled by Blue Mountain Energy. Only monitoring wells will be subject to <br />subsidence. Section II.0 addresses appropriate sampling and plugging of these wells during the <br />course of mining. <br />Pre - construction survey of the property found six building structures within the permit boundary; all <br />located adjacent to the abandoned Staley Gordon Mine. These structures have been removed. <br />Rio Blanco County Road 65 /Moffat CR 61, RBC Road 96, and RBC Road 73 cross portions of the <br />permit area. The most sensitive portions of CR65/61 were subsided with minimal impact. Additional <br />subsidence will occur with minimal effects expected. CR 96 was subsided with no future subsidence <br />planned. Portions of CR 73 will be subsided with minimal impacts expected. <br />Raven Park Reservoir and Halandras Reservoir have been subsided. Damage was minimal and did <br />not warrant repair. Red Wash Reservoir No. 2 and No. 3 are scheduled to be subsided with minimal <br />impacts expected. These reservoirs rarely holds any water and are over very deep cover which will <br />further minimize the effects of subsidence. <br />Lincoln Res., Darwin Res., and Spooky Mountain Draw Check Dam No. 8 are within the permit area <br />but will not be subsided under the current permit. <br />III.A.7.b Subsidence Control. BME intends to plan and control the surface subsidence by employing <br />the latest technology of ground control. Subsidence is anticipated and its magnitude and extent have <br />been predicted. The magnitude, extent and duration will be minimized to the greatest extent possible <br />by an efficient mine layout, barrier and chain pillars, and a rapid and effective mining system and <br />sequence. <br />Longwall mining will produce the most subsidence, but the subsidence will be (relatively) short- lived, <br />lasting less than 5 years after mining. Room and pillar mining will minimize initial surface subsidence <br />during room advances and lower the surface an almost undetectable 0.025 feet or less. However, <br />wherever chain pillars are not extracted upon the retreat from a panel the so- called "permanent" pillars <br />Permit Renewal #6 (07/2014) III -9 <br />