The owner of any house, building, or property which is used for human occupancy, employment,
recreation, or other purposes, and abutting on any street, alley, right-of-way, or
easement in which there is sewer service available, is required, at the owner's expense,
to install suitable toilet facilities therein, and to connect such facilities by means
of a building sewer (lateral) directly to the wastewater sewer. The owner is responsible
for the maintenance of the building sewer (lateral) to the point of connection with
the publicly owned wastewater sewer. This section shall not apply to any user served
by a privately constructed, owned, operated and maintained wastewater sewer and wastewater
treatment facility which discharges directly to a natural outlet in accordance with
the provisions of this chapter and/or applicable state, federal or local laws, where
sewer service is not available. The director shall promulgate regulations establishing
when sewer service is deemed available.