Laserfiche WebLink
Mr. Robert F. T. Krassa - 6 - July 26, 1993 <br />8. We agree that longwall mining and retreat room-and-pillar mining can cause <br />subsidence. Whether past operations by Wyoming Fuel in Lots 1, 2, 3 and <br />10 of Rancho Escondido will cause damage to any existing structures in <br />those tracts will depend on the locations of these structures relative to <br />the area anticipated to be affected by the underground mining. Please <br />supply us with the locations of all structures within these lots on a map, <br />with dates of their construction, and we will attempt to discern whether <br />they are in the anticipated affected area. <br />Whether future operations by Basin Resources will cause damage to future <br />structures will depend upon whether such structures will be built over <br />existing workings that have yet to subside or over workings approved by <br />our Division to be constructed in the future. We have asked <br />Basin Resources to provide us with a map with their affected area boundary <br />identified. This boundary will help identify where future subsidence is <br />expected by Basin Resources. <br />9. The Division will request Basin Resources to ensure that Raton West is <br />properly notified of all permitting actions as required by law. 'The <br />Division does not notify landowners of inspection and enforcement issues <br />raised during its field and permitting activities other than as required <br />by law. <br />10. In December 1993, the Division sent to you the Midterm Permit Review <br />Findings Document for the Golden Eagle Mine. Basin Resources has <br />responded, in part, to the Division's preliminary adequacy questions. <br />This material, as well as any future information, will be forwarded to you. <br />11. In early May, 1993, the Division provided a letter responding to this <br />particular request. <br />12. In early May, 1993, the Division provided a letter responding to this <br />particular request. <br />13. In early May, 1993, the Division provided a letter responding to this <br />particular request. <br />14. Questions regarding a subsidence survey, a subsidence monitoring program <br />and a subsidence control plan had been raised by the Division with <br />Basin Resources in the December 1992 Midterm Permit Review Findings <br />Document. <br />C.R.S. 34-33-111(1)(c>, (d) and (i) do not require operators to file <br />subsidence surveys and subsidence monitoring plans. Regulation <br />2.05.6(6)(b)(iii) states, however, that if there is a determination that <br />material damage or diminution of reasonably foreseeable use could result <br />from subsidence, then either a subsidence survey or a subsidence control <br />plan is required. If material damage or diminution of reasonably <br />foreseeable use would not be expected to result from subsidence, then a <br />subsidence monitoring plan would be required, per Regulation <br />2.05.6(6>(b)(ii). <br />