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Page 2 of 6 <br />Rule 2.10.1(3) — Maps and Plans <br />2) DRMS: Please update Map 147 - Small Area Exemptions Location Map to include the <br />proposed permit boundary. <br />BME: Map 147 does not provide the "official" mine permit boundary. To prevent confusion <br />should several versions of the boundary occur within BME's permit Map 147 references Map 1 <br />for the current permit boundary. We intend to update Map 147 next month as part of a Minor <br />Revision to add additional nitrogen injection and degas boreholes. The updated mine permit <br />boundary and min plan will be included at this time. As before, a not referring to Map 1 for the <br />official permit boundary will be included. <br />DRMS: Response is sufficient. <br />Rule 2.05.6(6) — Subsidence Survey, Subsidence Monitoring, and Subsidence Control Plan <br />3) DRMS: Rule 2.05.6(6)(a) states that "For underground mining activities the application shall <br />include an inventory of...renewable resource lands which exist within the proposed permit and <br />adjacent area." Are there any renewable resource lands as defined by Rule 1.04(110) that are <br />within the proposed permit expansion area that would be impacted by subsidence? <br />BME: As defined by Rule 1.04(110) Renewable Resource Lands include areas for the recharge <br />of aquifers, areas for agricultural or silvicultural production of food and fiber, and pasture land. <br />There are no identified aquifers within the area or any from outside the area that recharge from <br />the expansion area. The only agricultural use is for sheep grazing. The expansion area sees <br />winter and spring sheep use from the same sheep allotments as for the ehxisting mine area. <br />Subsidence from the Deserado Mine will not adversely impact this use. Provisions addressing <br />such impacts, if they were to occur, are found in Section III.A.7h. <br />DRMS: Response is sufficient. <br />4) DRMS: It appears that sections of Refuse Pile's 2/3/4, 5A and possible future refuse pile <br />expansion areas will be undermined, possibly affecting stability and proper drainage of the <br />refuse piles. Please describe how BME plans on monitoring and addressing any potential issues <br />from subsidence that may occur to the refuse piles. <br />BME: We expect minimal impacts from subsidence at the refuse areas due to the depth of <br />