Sussex County, DE septic permits and regulations

Septic systems in Sussex County, Delaware are permitted by DNREC Groundwater Discharges Section - Sussex Office under 7 DE Admin. Code 7101.

Septic permit program

  • Program type: State Agency
  • Authorized agent: Sussex County Health Department
  • Own septic program: No, uses Delaware state rules
  • Local rules beyond the state: No
  • Population: 237,378

Permit fee comparison

Average septic permit fee in Sussex County: $463. Delaware average: $463.

Local rules

County operates under state-level 7 Del. Admin. Code 7101. Contact local health department for any additional county-specific requirements.

What SepticPro has on file for Sussex County

  • 4 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 Sussex County

Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for DNREC Groundwater Discharges Section - Sussex Office. See how SepticPro site plans work.

Other Delaware counties

Data checked 2026-03-16. Always confirm requirements with DNREC Groundwater Discharges Section - Sussex Office before applying.