Semi-public sewage systems service businesses and other non-residential buildings generating less than 25,000 gallons of wastewater per day. Our agency regulates these systems in three primary ways:

Permitting: Approving sites, issuing installation permits, and managing annual operational permits.

Inspections and Complaint Response: Conducting routine operational and maintenance checks to ensure compliance with water quality standards.

Connections: Working with property owners to connect to public sanitary sewers when they become available.

If a new sanitary sewer is installed and deemed accessible to buildings currently utilizing semi-public sewage systems, our staff notifies and works closely with community officials and property owners as the systems are properly abandoned and connected to the sanitary sewer.

Information about the statewide Semi-public Sewage Disposal Program is available here. 

General information about types of sewage treatment is available here.