(1) Provo City shall be responsible for the maintenance of all sewer mains which are on public property or in approved easements.

(2) In the case of private developments, such as apartment complexes, mobile home parks, planned unit developments, commercial developments, etc., where sewer main lines exist in streets, parking lots, etc., not dedicated for public use, the property owners shall be responsible for sewer lateral and main line maintenance, and shall keep such laterals and main lines free from the intrusion of groundwater. It shall be unlawful to install a private sewer main unless the owner enters into a private utility maintenance agreement with the City prior to installation. The City may lend technical assistance in locating the source of any groundwater infiltration.