Pennsylvania Statutes Title 53 P.S. Municipal and Quasi-Municipal Corporations § 3102.504. Billing and collecting agent

(a) General rule.--A water utility may act as billing and collecting agents of a municipal authority which imposes rentals, rates or charges for use of a sewer, sewerage system or sewage treatment works upon owners or occupants of premises served by the water utility.  Upon request of an authority, the water utility may include with its own bills for water or water service the rentals, rates and charges for sewer, sewerage and sewage treatment service.  If the water utility agrees to do so, the added rentals, rates and charges shall be set forth separately from the charges for water or water service, but both shall be payable to and collected by the water utility and payment of either may be refused unless both are paid.

(b) Accounting.--The water utility shall, at least once each calendar quarter, account for and turn over the moneys it has collected to the authority imposing the rentals, rates and charges.