Who regulates septic in Florida
Septic systems in Florida are regulated under state law and the state's onsite sewage rules. For many years, the Florida Department of Health ran the program. The Clean Waterways Act of 2020 moved it to the Department of Environmental Protection starting in 2021, and the rule chapter changed from 64E-6 to 62-6, Florida Administrative Code. In most counties, the county health department still handles permits, but Marion County is one of the places where DEP now handles permitting and inspections directly, as of July 1, 2025.
Florida's septic standards are set in Chapter 62-6 of the Florida Administrative Code, which was Chapter 64E-6 until the Clean Waterways Act moved the program from the Department of Health to the Department of Environmental Protection in 2021. In Marion County, permitting and inspections for septic systems moved to DEP on July 1, 2025, according to DEP. If a repair or replacement needs a permit, the septic professional handling your job will know the current process. This page is general information, not legal advice.
Why the springs are part of the story
Marion County sits on top of the Floridan Aquifer, with famous springs like Silver Springs and Rainbow Springs. The aquifer is close to the surface in many places, and the sandy soil and limestone above it let water move down quickly. Nitrogen from fertilizer and septic systems can reach the springs and feed algae growth. That's why the state's springs protection plans pay attention to septic systems.
Marion County is spring country. Silver Springs and Rainbow Springs are both state parks, and the Florida Department of Environmental Protection lists them among the state's Outstanding Florida Springs. Under the Florida Springs and Aquifer Protection Act of 2016, the state set up cleanup plans for springs with too much nitrogen, and septic systems are one of the sources those plans address. For homeowners, the practical takeaway is that a well-maintained system is part of protecting the water the whole county drinks. Florida DEP says groundwater supplies about 90 percent of the state's drinking water.
What that means for homeowners
For most homeowners with a working system, the main responsibility is maintenance: pump on schedule, protect the drain field, and fix problems promptly. If you are building new or replacing a system in an area covered by a springs protection plan, there may be additional requirements, such as nitrogen-reducing systems. The rules can change, so a septic professional or DEP is the right source for your specific property.
Septic is the norm here, not the exception. The Florida Department of Health's water management inventory counted about 62 percent of Marion County's built parcels as known or likely septic in 2022, and the county had roughly 125,000 septic systems in 2019, the third most of any Florida county, according to the Ocala Gazette citing the Department of Health. Statewide, DEP estimates about 2.6 million systems serve around 30 percent of Floridians.
Where to find official information
The Florida Department of Environmental Protection's onsite sewage program pages explain the current rules and permitting process. For a specific job, the septic professional doing the work will know which permits are needed.
Most of Marion County sits on sandy soil over limestone. Sand drains fast, which sounds like good news for a drain field, but it also means poorly treated wastewater can move down quickly toward the groundwater. The limestone underneath is karst, the same rock that forms the county's springs and sinkholes. A septic system here works best when solids stay in the tank, where they belong, and only clarified liquid flows out to the drain field. Regular pumping is the simplest way to keep it that way.
A note on this guide
This article summarizes public information and is not legal advice. Always confirm current requirements before starting a repair or installation.
The warning signs are the same across the county: drains that gurgle or run slow, toilets that are sluggish to flush, a sewage smell near the tank or in the house, unusually green grass over the drain field, or wet, spongy ground where the drain field runs. Any one of these deserves a call. Sewage coming back up into tubs or floor drains is an emergency, so stop running water and keep people and pets away from it.
A few habits go a long way: spread laundry across the week instead of doing it all in one day, fix running toilets and dripping faucets, keep grease, wipes and paper towels out of the drains, and don't park vehicles or build over the tank or drain field. Point gutter downspouts away from the drain field so roof water doesn't flood it during summer storms.
Most guidance, including the Florida Department of Health's homeowner advice cited by local providers, points to pumping every three to five years for a typical household. A big family, a garbage disposal, frequent guests or a small tank can shorten that. Keeping the date of your last pump-out on file makes it easy to plan the next one.