Boulder County, CO septic permits and regulations
Septic systems in Boulder County, Colorado are permitted by Boulder County Public Health under 5 CCR 1002-43 (Regulation No. 43).
Septic permit program
- Program type: County Health Department
- Authorized agent: Boulder County Health Department
- Own septic program: No, uses Colorado state rules
- Local rules beyond the state: Yes
- Population: 330,758
Permit fee comparison
Average septic permit fee in Boulder County: $857. Colorado average: $331.
Local rules
County operates under state-level CDPHE Regulation 43 (5 CCR 1003-6). Contact local health department for any additional county-specific requirements.
What SepticPro has on file for Boulder County
- 15 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 Boulder County
Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for Boulder County Public Health. See how SepticPro site plans work.
Other Colorado counties
- Adams County
- Alamosa County
- Arapahoe County
- Archuleta County
- Baca County
- Bent County
- Broomfield County
- Chaffee County
- Cheyenne County
- Clear Creek County
- Conejos County
- Costilla County
- Crowley County
- Custer County
- Delta County
- Denver County
- Dolores County
- Douglas County
- Eagle County
- El Paso County
- Elbert County
- Fremont County
- Garfield County
- Gilpin County
Data checked 2026-03-16. Always confirm requirements with Boulder County Public Health before applying.