St. Louis County, MO septic permits and regulations
Septic systems in St. Louis County, Missouri are permitted by St. Louis County Department of Public Health under 19 CSR 20-3.060.
Septic permit program
- Program type: Mixed
- Authorized agent: St. Louis County County Health Department
- Own septic program: No, uses Missouri state rules
- Local rules beyond the state: No
- Population: 1,004,125
Permit fee comparison
Average septic permit fee in St. Louis County: $90. Missouri average: $90.
Local rules
County operates under state-level 19 CSR 20-3.060. Contact local health department for any additional county-specific requirements.
What SepticPro has on file for St. Louis County
- 1 permit fee 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 St. Louis County
Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for St. Louis County Department of Public Health. See how SepticPro site plans work.
Other Missouri counties
- Adair County
- Andrew County
- Atchison County
- Audrain County
- Barry County
- Barton County
- Bates County
- Benton County
- Bollinger County
- Boone County
- Buchanan County
- Butler County
- Caldwell County
- Callaway County
- Camden County
- Cape Girardeau County
- Carroll County
- Carter County
- Cass County
- Cedar County
- Chariton County
- Christian County
- Clark County
- Clay County
Data checked 2026-03-16. Always confirm requirements with St. Louis County Department of Public Health before applying.