Click here to view the updated Cascade County Regulations for Subsurface Wastewater Treatment Systems, effective July 5, 2014.
Safe treatment and disposal of all wastewater is necessary to protect the public health and the environment. Within the city limits of Great Falls, sewage is treated at the wastewater treatment plant before it is discharged to the river. Other municipalities in the county may also be on a public community wastewater system, such as lagoons which are regulated by the Montana Department of Environmental Quality.
Homes or other structures that have individual on-site septic systems are regulated through a permitting process by our department. CCHD also recognizes the importance of proper treatment and disposal of wastewater, so local and state regulations are followed to ensure safe disposal of sewage/wastewater. The basic principles include proper siting, design, construction, installation, and maintenance.
Click on the links below for more information. (Please note, the following files are in PDF format. Click Here to Download the FREE Adobe PDF Reader.)
- Cascade County Regulations for Subsurface Wastewater Treatment Systems
- Septic Permit Process Flowchart
- Septic Permit Application
- Septic System Permit Fees and Soil Profile Fees
- Certified Septic Installers 2020
- Cascade County Installer Report Form
- Minimum Setbacks Map
- NAWT Onsite Wastewater Treatment System Certified Inspectors
- Request Form for Septic information on Existing Permits
- MSU Extension Guide for Septic Tank and Drain Field Operation and Maintenance
- MSU Extension Guide for Septic Tank Inspection and Trouble-Shooting
- Homeowner’s Guide to Septic Systems
- Montana Standards for Subsurface Wastewater Treatment Systems