Pennsylvania Statutes Title 53 P.S. Municipal and Quasi-Municipal Corporations § 10608.1. Municipal authorities and water companies 

(a) A municipal authority, water company or any other municipality that plans to expand water, sanitary sewer or storm sewer service via a new main extension to a proposed development that has not received any municipal approvals within the municipality shall notify the municipality by certified mail, return receipt requested, of its intention and shall provide the municipality an opportunity to provide written comment on whether the proposed expansion of service within the municipality is generally consistent with the zoning ordinance.

(b) The purpose of the requirement of this section is to provide the municipal authority, water company or any other municipality with information regarding how its decision to expand service may potentially enhance and support or conflict with or negatively impact on the land use planning of municipalities.

(c) Nothing in this section shall be construed as limiting the right of a municipal authority, water company or any other municipality to expand service as otherwise permitted by law.

(d) Except as provided in section 619.2,   1 nothing in this act shall be construed as limiting the authority of the Pennsylvania Public Utility Commission over the implementation, location, construction and maintenance of public utility facilities.  The requirement of this section shall not apply to an expansion of service by a municipal authority, water company or other municipality which is ordered by a court or a Federal or State agency.

(e) As used in this section:

(f) Nothing in this section shall be construed to authorize a municipality to regulate the allocation or withdrawal of water resources by any person, municipal authority or water company that is otherwise regulated by the Pennsylvania Public Utility Commission or other Federal or State agencies or statutes.