25 Pa. Code § 78.302
For a well that has not been plugged, the owner or operator shall file a bond or otherwise comply with the bonding requirements of section 215 of the act (58 P. S. § 601.215) and this chapter. A bond or bond substitute is not required for a well drilled before April 18, 1985.
The provisions of this § 78.302 adopted July 28, 1989, effective July 29, 1989, 19 Pa.B. 3229; amended March 30, 2001, effective March 31, 2001, 31 Pa.B. 1736. Immediately preceding text appears at serial page (241946).