An adequate and safe sewerage system shall be provided in all parks
for conveying and disposing of sewage from mobile homes, service buildings
and other accessory facilities. Such system shall be designed, constructed
and maintained in accordance with the Department of Environmental Resources
and all other state, county and local health regulations.
All sewer lines shall be located in trenches of at least three feet
in depth to be free of breakage from traffic or other movements and shall
be separated from the park water supply system. All sewer lines shall be constructed
of materials installed in a manner that is in accordance with the Department
of Environmental Resources and the Allegheny County Health Department and
shall have watertight joints.