No person shall connect interior or exterior roof downspouts, interior or exterior foundation drains, areaway drains or other sources of surface runoff or groundwater to a lateral sewer or a building drain, which in turn is connected directly or indirectly to a public sanitary sewer. Any cross-connection between a potable water supply and a sanitary sewer shall be prohibited.
(Prior Code, § 51.042) Penalty, see § 51.999