[Ord. 12-10-12(E), 12/10/2012, § 27-1501]
Some areas of the Township have been deep mined in the past. This mining took place at multiple levels in the bedrock. Much of this mining occurred in the 1800's and early 1900's. Many of the records have been lost. Even those records which exist are suspect as to accuracy. Voids may exist in the bedrock and this introduces the possibility of subsidence. Any surface activities which involve blasting, the use of heavy equipment and/or the storage of heavy materials or materials which must be isolated from the environment because of health concerns are subject to the following conditions.