ENFORCE20085 - Laserfiche WebLink

Home Browse Search

a requirement that mining beneath the AVF would be only by the room and pillar method and, to further reduce the chance that subsidence would occur, coal extraction would be limited to 50 percent. DMG asserted that permit Stipulation 29 was included in the Golden Eagle mine permit to further ensure that subsidence would not occur: For purposes of even further assuring that the room and pillar operations would not create surface subsidence effects, compliance with Rule 2.05.6(6)(b)(ii) and 7.05.6(6)(1) was specifically required under Stipulation 29 as part of the 1984 permit approval, to verify the permittee's conclusion that significant subsidence would not occur over the room-and-pillar areas. This stipulation required the applicant to submit a pillar strength calculation demonstrating that subsidence would not occur as predicted. (This stipulation was later satisfied on August 28, 1984.) State Rule 2.05.6(6)(b)(ii), as quoted below, requires a permit applicant to submit a subsidence monitoring plan with the permit application if it is determined that no material damage or reasonably foreseeable diminution of use could occur: If the description of worst possible subsidence consequences, prepared in accordance with Section 2.05.6(6)(b)(i), determines that no material damage or diminution of reasonably foreseeable use could result in the event of mine subsidence within the permit and adjacent areas, and if the Division [of Minerals and Geology] concurs with that conclusion, the application shall include a monitoring program designed to determine the accuracy of that conclusion, as described in Section 2.05.6(6)(c). ~ The citation to State Rule 7.05.6(6)(1) is a typographical error. As corrected by DMG in a letter of December 21, 1993 (AR III-25), the correct citation should be to State Rule 2.05.6(6)(c). 23