Pennsylvania Statutes Title 58 P.S. Oil and Gas § 1. Abandoned oil or gas wells to be plugged

Upon the abandonment or ceasing to operate or use any well which shall have been drilled for oil or gas, it shall be the duty of the person or persons interested in such well to plug the same so as to completely shut off and prevent the escape of all water therefrom which may be impregnated with salt or other substances which will render such water unfit for use for domestic, steam making or manufacturing purposes, and in such manner as to prevent water from any such well injuring or polluting any spring, water well or stream which is or may be used for the purposes aforesaid.