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Monitoring Wells - Active monitoring wells within the projected subsidence area(s) will be monitored on the <br /> regular hydrologic monitoring schedule. If monitoring results, specifically water levels, indicate any significant <br /> changes due to undermining or subsidence, TCC will conduct further testing and /or inspection to determine <br /> whether or not the integrity of the well has been compromised. If the resulting information indicates that the <br /> well has been damaged beyond repair, if appropriate, TCC will prepare and submit a revision to the permit for a <br /> replacement well, and then will construct and initiate monitoring of the replacement well. <br /> Subsidence reports will be submitted to the CDRMS semi - annually. The reports will be submitted 60 days after <br /> the end of the period, unless TCC requests an extension of the submittal date. The planned reporting format is <br /> shown in Exhibit 34, Subsidence Survey Report. <br /> (d) (i) If a subsidence monitoring program determines, in the opinion of the Division, <br /> that the subsidence prediction was inaccurate and that the material damage or diminution of reasonable <br /> foreseeable use of structures or renewable resource lands may occur, the permittee will be required to submit a <br /> subsidence control plan, as defined in Section 2.5.6(6)(f). <br /> (ii) In order to protect structures and renewable resource ]ands within the permit <br /> and adjacent area the Division after consultation with the permittee shall suspend underground coal mining <br /> under structures of renewable resource lands, if imminent danger of material subsidence damage or diminution <br /> of reasonably foreseeable use is determined to exist. <br /> (e) A subsidence survey, prepared by appropriately qualified professionals in accord with the <br /> current state -of -the -art of subsidence prediction technology, shall contain the following information: <br /> (i) A detailed description of subsidence predicted to occur within the permit and <br /> adjacent area, including_ <br /> (A) A brief description of the planned mining methods. <br /> (B) A brief description of geologic properties which influence subsidence <br /> occurrence, such as rock mechanics character of the affected materials, geologic structure of the affected <br /> materials, faulting and fracturing of the involved geologic section and permit, and adjacent area topography; <br /> (C) A brief description of local mining experience concerning subsidence <br /> occurrence. if any: <br /> • <br /> PRO9 -08 2.05 -191.8 04/29/09 <br />