Pennsylvania Statutes Title 73 Pa.C.S.A. Townships § 7901. Collection of municipal claims

(1) If a township has a municipal claim for making an improvement, providing water or sewer service or removing a nuisance, the township may collect the claim by an action in assumpsit against the person that owned the property at the time of the completion of the improvement or at the time the applicable water or sewer rate or the cost of the removal of the nuisance first became payable. The remedy under this paragraph is in addition to the remedies provided by law for the filing of liens for the collection of municipal claims, including water rates, sewer rates and the removal of nuisances.

(2) This subsection applies notwithstanding the fact that there was a failure on the part of the township or its agent to enter the municipal claim as a lien.

(1) completion of the improvement;

(2) the applicable water or sewer rate becomes payable;  or

(3) the cost of removal of the nuisance becomes payable.