Monroe County, FL septic permits and regulations

Septic systems in Monroe County, Florida are permitted by DOH-Monroe under FAC 64E-6.

Septic permit program

  • Program type: State Agency
  • Authorized agent: James Rachal, EH Director
  • Own septic program: No, uses Florida state rules
  • Local rules beyond the state: No
  • Population: 82,874

Permit fee comparison

Average septic permit fee in Monroe County: $174. Florida average: $173.

Local rules

Florida Keys - strictest septic requirements in the state. In 1999, state mandated entire island chain install advanced wastewater treatment. By Dec 2015, all OSTDS in Keys required to meet advanced wastewater treatment standards for nitrogen, phosphorus, BOD, and TSS. Central sewer almost universally available and connection is mandatory where available. Remaining septic systems must be Performance Based Treatment Systems (PBTS). Operating permits required for ATUs, PBTS, commercial, and industrial septic. County provides financial assistance for sewer connections for income-eligible residents. Chapter 20 of Monroe County Code of Ordinances covers sewage/septic.

What SepticPro has on file for Monroe County

  • 30 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 Monroe County

Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for DOH-Monroe. See how SepticPro site plans work.

Other Florida counties

Data checked 2026-03-16. Always confirm requirements with DOH-Monroe before applying.