Marathon County, WI septic permits and regulations
Septic systems in Marathon County, Wisconsin are permitted by Marathon County Conservation, Planning and Zoning under Wisconsin Administrative Code SPS 383.
Septic permit program
- Program type: Mixed
- Authorized agent: Marathon County County Health Department
- Own septic program: No, uses Wisconsin state rules
- Local rules beyond the state: No
- Population: 138,013
Permit fee comparison
Average septic permit fee in Marathon County: $97. Wisconsin average: $97.
Local rules
County operates under state-level SPS 383 (Private Onsite Wastewater Treatment Systems). Contact local health department for any additional county-specific requirements.
What SepticPro has on file for Marathon County
- 6 permit fees with sources
- The agency phone, email and office address
- Setback distances
- Soil and perc test requirements
- Allowed system types
- System design rules
- Inspection requirements
- Maintenance and pumping rules
- Point-of-sale rules
- Installer, designer and pumper licensing
Create a free account to see the full details.
Draw a permit-ready site plan for Marathon County
Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for Marathon County Conservation, Planning and Zoning. See how SepticPro site plans work.
Other Wisconsin counties
- Adams County
- Ashland County
- Barron County
- Bayfield County
- Brown County
- Buffalo County
- Burnett County
- Calumet County
- Chippewa County
- Clark County
- Columbia County
- Crawford County
- Dane County
- Dodge County
- Door County
- Douglas County
- Dunn County
- Eau Claire County
- Florence County
- Fond du Lac County
- Forest County
- Grant County
- Green County
- Green Lake County
Data checked 2026-05-11. Always confirm requirements with Marathon County Conservation, Planning and Zoning before applying.