All sewer main extensions installed within a public street, public utility easement, public service easement, or public sewer easement as hereinbefore provided by this article shall be maintained by the city; provided that, the city shall have the right to discontinue the maintenance of or remove such sewer main extensions when premises adjacent thereto are no longer being served by the sewer system. All sewer main extensions installed within a private street or private sewer easement shall be maintained by the owner of the premises served by the sewer main extension.
(Ord. 1735 §1 (part))