Septic Systems / Wells

The Environmental Health Department provides education, permitting, and licensing to the Tri-County area for septic systems, wells, and sanitation in subdivisions to meet state water quality standards. Standards are in place to protect the health of residents and the environment.

Certified Installer Program

Being a certified installer is not required in order to install septic systems in the Tri-County jurisdiction. Certified Installers have demonstrated knowledge and awareness of correct procedures, permitting and inspection of systems through examination. They are allowed to perform self-inspections of their installations. If you are interested in becoming certified, please contact this office at 406-563-4066 for a packet.

Guideline to Installation of Septic Systems in Each County Trifold (PDF)

Septic Systems Resources