Rock County, WI septic permits and regulations

Septic systems in Rock County, Wisconsin are permitted by Rock County Planning and Development under Wisconsin Administrative Code SPS 383.

Septic permit program

  • Program type: Mixed
  • Authorized agent: Rock County County Health Department
  • Own septic program: No, uses Wisconsin state rules
  • Local rules beyond the state: No
  • Population: 163,687

Permit fee comparison

Average septic permit fee in Rock 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 Rock 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

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Draw a permit-ready site plan for Rock County

Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for Rock County Planning and Development. See how SepticPro site plans work.

Other Wisconsin counties

Data checked 2026-03-16. Always confirm requirements with Rock County Planning and Development before applying.