Land Services: Individual/Shared Septic Systems
One important potential source of contamination is sewage. In the larger community settings of Missoula County, wastewater treatment plants are used to treat the sewage before it is released back into the river. But not all of Missoula County's areas are served by wastewater treatment plants. Many homes in the county have on-site wastewater disposal systems that dispose of sewage into the ground. Gradually that sewage, if not properly treated, can contaminate our drinking water.
- How to Apply for a Septic Permit
- Site Plan Guidance
- Floor Plan Guidance
- Groundwater Monitoring
- Site Evaluations
- Subdivision of Land
- Septic/Well Permit Application (.pdf)
- Site Evaluation Application (.pdf)
- Groundwater Monitoring Application (.pdf)
- Septic Determination Application (.pdf)
- Modified Site Plan Application (.pdf)
- Regulation 1: Wastewater Treatment and Disposal
- Alternative Systems Manual
- Rules for Septic tanks
- Montana State Requirements (DEQ Circular 4)
Handouts and Resources
- Septic Maintenance
- Septic Checklist
- On-site Wastewater Subsurface Disposal: The Theory
- Homeowner's Guide to Septic Systems (.pdf)
- EPA On-Site Wastewater Treatment Systems Manual (.pdf)
- Free Encyclopedia of Building & Environmental Inspection, Testing, Diagnosis, and Repair
- Montana Department of Environmental Quality
Our Health Department has worked very hard to prevent contamination of our underground drinking water sources. You can find out more by visiting the Water Quality website.
Alternative Septic Systems
Occasionally, there arises a case where a conventional on-site septic system is not appropriate for a particular piece of land. It might be because there is high groundwater, a steep slope or a well or irrigation ditch too close to the proposed drainfield location. Whatever the reason, there may be an option for the property owner in the Approved Alternative Systems Manual.
Have questions? Contact us at 258-4755, or see our directory.
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