16 Pa. Stat. § 12912
If any abandoned well on private property is contributing pollution, acid or salts to waters to be stored or used by a County Water Supply Authority in its water supply business, a suit in equity or at law to abate the nuisance may be instituted by the authority in the court of common pleas (1) of the county where the nuisance exists, or (2) of any county through which or along the borders of which the polluted water flows or is used. Notice of all such proceedings shall be served on the Attorney General who shall have the right to intervene in such proceedings on behalf of the Commonwealth. If the court finds that a public nuisance exists, it shall authorize its abatement by the authority if no responsible person is found who, by decree of the court, can be required to abate it. Pursuant to the court order, the authority may enter upon private lands or enclosures to abate the public nuisance and, at its own cost, seal any abandoned well covered by the decree of the court and which at the time is contributing pollution, acid or salts to waters to be stored or used by the authority in its water supply business.
16 P.S. § 12912