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-44- Information on augering can be found in Section 2.06.9 (Volume I) of the revision application. Chimney Rock Coal Company proposes to auger coal in the "A", and "B" seams in the Permit Revision No. 2 area. Augering operations are proposed to be conducted from the highwall of the pits into these seams. During the fall of 1982, the company submitted and received approval for a revision to allow auger mining of coal near Highway 151, from the eastern pit. That area has been used as a test area to verify the effects of subsidence above angered areas, as projected in Section 2.06.9, pages 2.06-6 through 14 of the Federal Lease permit revision application documents. The augering activities were completed in March of 1983. In accordance with the requirements imposed upon approval of that minor revision, the operator has completed and submitted several sets of subsidence monitoring results. (See Tables 21A and 21B the Federal Lease permit revision application). To date, no significant vertical or horizontal subsidence has been detected. Chimney Rock Coal Company proposes to conduct analogous augering operations from the highwall of the Deep Creek Pit. The applicant has amended Map 12R2 and provided cross-section 13R2 to clearly indicated the proposed areas of augering activity. The applicant has proposed a subsidence monitoring program analogous to that currently approved for the Barren Ridge and Permit Revision No. 1 areas, which is acceptable. However, in response to adequacy concerns presented during the review of the Deep Creek Permit Revision application, regarding potential subsidence affects upon surface gradients and possible surface cracking, the operator has amended its permit revision application to read: "Since subsidence monitoring began in November, 1982, there has been no evidence of gradient reversals or open cracking. However, should either of the problems become apparent, an explanation and location shall be submitted along with the subsidence monitoring report". In order the clarify the Division's position, the Division believes it appropriate to inform the applicant that any subsidence that results in a deleterious affect upon surface or ground water hydrologic conditions will require a remedial plan to mitigate those deleterious affects. In the event that gradient reversal or open cracking were to occur, the applicant should expeditiously submit an analysis of effects upon ground and surface water hydrologic conditions and a remedial plan to mitigate any deleterious affects upon the hydrologic balance. The proposed operation is in compliance with the applicable requirements of this section. XXV. Miscellaneous Compliance - Rules 2.05.6(5), 4.02, 4.12, 4.19, 4.21, No problems were identified with respect to the requirements of these sections. The existing and proposed operations are in compliance with the requirements of this section.