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reclamation seed mix includes species suitable for wildlife forage, and the applicant <br />has selected appropriate plant species and distributions to benefit fish and wildlife. <br />(4.15.1(2)(d) and 4.18(5)(1)) <br />B. Pursuant to Rule 4.18(5)(g), the Division has approved the use of certain selective and <br />broad-spectrum herbicides of varying persistence, for application in accordance with <br />label specifications for specific uses. Applications include limited use of 2,4-D for <br />control of annual weeds on reclaimed azeas, and use of "Oust" and "Roundup" for <br />cheatgrass control and other uses as specified in the permit. <br />The proposed operation is in compliance with the requirements of this section. <br />VIII. Snhsidence C nntml <br />Subsidence Survey, Monitoring, and Control Plans are addressed in Section III.A.7, <br />Volume 4, of the permit application. <br />The operator has completed a survey of structures and renewable resource lands existing <br />within the permit azea as delineated on Map 1. Structures of concern include portions of <br />Rio Blanco County Road 65, a 138 kV powerline, and three stock ponds (Lincoln <br />Reservoir, Raven Pazk Reservoir, and Halandras Reservoir No. l ). In addition, two <br />significant ephemeral streams traverse the permit azea. These structures and the <br />ephemeral drainages will be undermined. Projected impacts, monitoring plans and <br />mitigation measures are addressed within the application. <br />County Road 65 was visually monitored on a daily basis by the operator during periods of <br />undermining by "D" seam longwall operations, and repairs were made as necessary. Road <br />segments subject to subsidence were posted with appropriate warning signs. Similar <br />monitoring, repairs, and hazard signage will be conducted during "B" seam extraction <br />beneath the road. Two of the stock pond reservoirs referenced above could potentially be <br />impacted by tension cracks due to longwall subsidence (Raven Pazk and Halandras <br />Reservoir No. 1). Lincoln Reservoir is located over a room and pillar mining area. Pillaz <br />dimensions and extraction ratio consistent with main entries will be employed beneath the <br />reservoir to prevent subsidence. The stock ponds will be visually monitored during <br />undermining, and repaired as necessary (see discussion in the Probable Hydrologic <br />Consequences narrative of this document). The powerline is owned by BME, and the <br />mine is the only customer served by the powerline. Power structures within azeas of active <br />subsidence will be monitored periodically by the operator, and repaired if necessary. <br />Monitoring associated with Scullion Gulch and Red Wash is discussed below. <br />The primary mining technique utilized at Deserado is longwall mining, however limited <br />areas of room and pillaz mining have been conducted within the "D" seam, and are <br />proposed for the "B" seam. The operator has calculated the maximum predicted surface <br />subsidence, based on previous mining conducted within the permit azea, site specific <br />geologic conditions, seam thickness, and overburden depths, utilizing British National <br />40 <br />