Septic to Sewer Conversion in Florida: Homeowner Guide

Why Florida Communities Convert Septic Systems to Central Sewer

Many areas in Florida are shifting homes from onsite sewage treatment and disposal systems (septic tanks) to central sewer service. This change supports water quality goals under the Florida Department of Environmental Protection (DEP) programs, including Basin Management Action Plans (BMAPs) for springs and other impaired waters. Septic systems can contribute nutrients like nitrogen to groundwater and surface water, which affects springs, rivers, and coastal areas.

DEP oversees onsite sewage in certain counties during a transition from the Department of Health, with rules emphasizing nutrient reduction where sewer is not available. Local governments often lead conversion projects in priority focus areas identified in BMAPs. Homeowners receive notice when sewer becomes available.

BMAPs may include OSTDS remediation plans that require upgrades to enhanced nutrient-reducing systems or connection to sewer in priority areas when certain conditions are met. Homeowners in affected zones should check the specific BMAP for their property through the DEP website.

Legal Requirements for Homeowners

Under s. 381.00655, F.S., the owner of a properly functioning septic system must connect to an available publicly owned or investor-owned sewerage system within 365 days after written notification. The sewer provider must give at least one year advance notice of anticipated availability. The owner may have the option to prepay certain connection charges in installments over up to two years in some cases.

If the septic system needs repair or modification, the connection timeline shortens to 90 days after notification from the department. In hardship cases, the department may approve one extension of up to 90 days. Local governments may offer installment plans for connection fees in cases of financial hardship, over a period not to exceed five years in some instances.

Homeowners remain responsible for the portion of the line from the house to the property line or the point of connection (the lateral line). The utility typically handles the main collection line in the street. "Available" sewer generally means a line exists in a public easement or right-of-way abutting the property that can accept the flow, per related definitions in s. 381.0065, F.S..

Local ordinances may impose additional requirements. Confirm details with your local utility or county government.

Checklist: Understanding Your Notification and Timeline

• Review the written notice for the exact availability date and required connection deadline.
• Note whether your system is described as properly functioning or in need of repair.
• Contact the notifying utility or DEP for clarification on any hardship provisions.
• Check for local government assistance programs for connection fees.
• Document all communications and keep copies of notices.

Abandoning the Septic Tank

Once connected to sewer, the existing septic tank must be abandoned properly. DEP rules in Chapter 62-6, F.A.C., require pumping the tank by a permitted septage hauler, rupturing the bottom or collapsing the tank to prevent water retention, filling it with clean sand or suitable material, and covering it with soil. A general permit process may apply, involving submission of a notice of intent, photographic documentation of each stage with metadata, and a pump-out receipt.

Confirm the exact process and any local requirements with your county health department or DEP, as permitting for onsite systems is transitioning. Abandonment prevents future use and complies with health and environmental standards. The tank must be abandoned within 90 days of connection to the sewer system.

Practical Examples of What to Look For in Abandonment Documentation

• Pump-out receipt from a permitted septage hauler showing date, volume, and hauler credentials.
• Photos clearly showing the tank before and after rupture or collapse, during filling, and after final cover, with date/time/location data.
• Written certification if the tank was already dry.
• Any local county-specific forms or additional inspections required beyond the state general permit (DEP 4011 form).

Who Performs the Work

Licensed professionals handle different parts of a septic to sewer conversion. State-licensed plumbers (pursuant to s. 489.105(3)(m), F.S.) and registered septic tank contractors can perform certain septic-related tasks, including connections and abandonment work. Underground utility and excavation contractors often manage trenching, pipe installation, and site work for the lateral and any excavation needed.

Florida Home Network lists 102,844 businesses built from DBPR license and Sunbiz records as of October 18, 2026, including categories for plumbing and underground utility and excavation. Verify current licenses through the official DBPR search before hiring. Property owners can compare licensed companies locally through resources such as Plumbing pros in Florida or Underground utility and excavation pros in Florida.

For projects in specific areas, consider Plumbing in Tampa, Underground utility and excavation in Orlando, or Plumbing in Jacksonville.

Checklist: Verifying Contractor Qualifications

• Confirm active license status and any disciplinary history via the DBPR lookup tool.
• Verify required workers' compensation or liability insurance coverage.
• Ask for proof of experience with septic-to-sewer laterals and tank abandonment projects.
• Request references from recent similar jobs and contact them.
• Ensure the bid includes all steps: excavation, piping, connection coordination, abandonment, site restoration, and permitting assistance.
• Compare at least three written estimates that break down costs by task.

Steps Homeowners Typically Follow

1. Confirm sewer availability and receive official notification from the utility provider.
2. Obtain any required permits for the lateral connection and tank abandonment.
3. Hire licensed contractors for excavation, piping, and abandonment work.
4. Complete the connection and have the system inspected as required.
5. Arrange tank pump-out and proper abandonment.
6. Pay any connection fees or explore local assistance options.

Always verify permitting authority in your county due to the ongoing transition of onsite sewage oversight to DEP. In transitioned counties such as those in Northwest Florida and Marion County, DEP handles certain OSTDS permits directly.

Expanded Checklist: Preparing for the Conversion Project

• Locate property records showing the current septic system location and any easements.
• Measure approximate distance from house to street main if known, to anticipate lateral length.
• Review landscaping, driveways, or structures that may be affected by excavation.
• Identify any private wells or other utilities on the property that contractors must avoid.
• Schedule a pre-construction meeting with the utility and contractor.
• Plan for temporary wastewater arrangements if the connection disrupts service.
• Keep a project file with all permits, contracts, photos, and receipts.

Funding and Assistance Programs

DEP provides financial assistance to local governments for water quality improvement projects, including some septic to sewer efforts, through programs such as the Clean Water State Revolving Fund and Nonpoint Source Management Grants. These can support lateral installation, connections, and abandonment on private property in eligible projects. Individual homeowners should contact their city or county utility or government for details on any available local incentives or grant pass-through programs. Check floridadep.gov for current statewide opportunities, as direct homeowner grants are not listed as a standard DEP offering.

Some local projects offer fee waivers or installment plans authorized under statute for financial hardship.

Finding Licensed Contractors

Search the official DBPR license lookup for plumbers, septic tank contractors, and underground utility contractors. Confirm active status, any required workers' compensation coverage, and experience with sewer connections. Request references and written estimates that detail the scope, including lateral installation and abandonment.

What to Expect During the Project

Conversion timelines vary by location and project scale. Expect excavation on the property for the lateral line, potential disruption to landscaping or driveways, and coordination with the utility for the final tie-in. Costs depend on distance to the main line, soil conditions, and any required pumping or fill materials for the tank. Local ordinances may add requirements beyond state rules.

After connection, maintain records of the abandonment for future property transactions or inspections. Site restoration typically includes backfilling, grading, and in some cases reseeding or replacing sod.

Examples of What to Monitor On-Site

• Proper shoring or safety measures during any deep excavation.
• Correct pipe slope and materials meeting utility specifications.
• Complete tank destruction and filling before backfill.
• Utility approval of the tie-in point before covering.
• Daily cleanup to minimize debris tracking.

This is general information based on official Florida statutes and DEP resources. Confirm all details with the appropriate local agency or utility for your property.