53 Pa. Stat. § 2311
From and after the passage of this act, it shall be lawful for any municipality, in which any corporation created and existing under and by virtue of the laws of this Commonwealth, or any person or persons or unincorporated associations, have constructed and are maintaining or may hereafter construct and maintain sewers, culverts, conduits, and pipes, with the necessary inlets and appliances, for surface, under surface and sewage drainage, to become the owners of such sewers, culverts, conduits, and pipes, with the necessary inlets and appliances, for surface, under surface, and sewage drainage, and the property of such company, person or persons, or unincorporated associations, by paying therefor the actual value of the same at the time of taking by the municipality.
53 P.S. § 2311