Workable Coal Seam
Workable coal seam—One of the following:
- A coal seam in fact being mined in the area in question under the act and this chapter by underground methods.
- A coal seam which, in the judgment of the Department, reasonably can be expected to be mined by underground methods.
Source: Oil and Gas Wells, Pennsylvania Code, Title 25, Chapter 78, December 2012. Regulations