Before the issuance of a certificate of occupancy for a building that includes a gray water system; an on-site treated nonpotable gray water system; or a separate, additional piping system for an on-site treated nonpotable gray water system for water closets and urinals, the building owner shall execute a user-supervisor declaration on a form prescribed by the director of utilities or designee. The user-supervisor declaration must identify the person responsible for the avoidance of cross-connections during the installation, operation, and maintenance of a gray water system; an on-site treated nonpotable gray water system; or a separate, additional piping system for an on-site treated nonpotable gray water system for water closets and urinals. (Ord. 2022-0031 § 3)