Septic permits and fees in Walton County, Florida
A septic system permit in Walton County costs $100. The county sets that fee in its own schedule. Onsite Sewage Program, Florida Department of Environmental Protection issues the permit. State rules fix the tank floor at 900 gallons. A private well needs 75 feet from the whole system, a property line 5 feet. Florida Administrative Code, Rule 62-6.030, Fees · checked 2026-09-23
$100
Septic system permit
checked 2026-09-23
900 gallons
Tank floor, state rule
checked 2026-09-23
75 feet
System to a well
checked 2026-09-23
Which septic permit applies in Walton County?
The septic system permit, and it starts with the site evaluation. The Department requires a site evaluation of the soil and topography before it issues a permit. An applicant may hire a private evaluator, or ask the Department to do it. The permit follows a passing evaluation. The building permit follows the septic permit.
Florida Department of Environmental Protection — Onsite Sewage FAQ, Permitting · checked 2026-09-23
What are the current septic fees in Walton County?
$100 for a septic system permit, on the county's own fee schedule.
Applies to a construction permit for a new septic system, with plan review.
| Application and plan review for construction permit for new system. | $100 | any system |
|---|---|---|
| Application for permitting of a new performance-based treatment system. | $125 | a system the source lists as performance-based treatment system |
The state sets one fee schedule for every Florida county. The Department uses this schedule here too. A site evaluation and the initial inspection cost extra.
Florida Administrative Code, Rule 62-6.030, Fees · checked 2026-09-23
What state law fixes for every Florida system
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900 gallons minimum septic tank capacity
Applies to a home flow of 300 gallons a day or less, three bedrooms or fewer.
This is the floor under the rule's tank-capacity table. The required tank grows as the estimated flow rises. A separate table sets a home's daily flow from its bedroom count and floor area.
Florida Administrative Code, Rule 62-6.008, System Size Determinations, Table II · checked 2026-09-23
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75 feet from a private drinking-water well to any part of the system
Applies to a private well for one home, or a shared well for several homes.
A public well needs a wider setback than a private well. The exact distance grows with how much water the public well serves.
Florida Administrative Code, Rule 62-6.005, Location and Installation · checked 2026-09-23
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5 feet from any property line
The same five feet keeps a system off building walls and pool walls. It can sit closer to a shared utility easement with no buried line.
Florida Administrative Code, Rule 62-6.005, Location and Installation · checked 2026-09-23
What Walton County requires that the state does not
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100
Applies to a lot by a coastal dune lake with no sewer line.
A drainfield may sit no closer than 100 feet from the lake's water line. Where a sewer connection is available, the county bars a new septic system there outright.
Walton County Land Development Code, Chapter 4, §4.02.03(E), Coastal Dune Lake Protection Zone · checked 2026-09-24
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Required
Applies to new building on land that drains to a coastal dune lake.
The rule covers a coastal dune lake watershed. It does not cover the rest of the county.
Walton County Comprehensive Plan, Coastal Management Element, Policy CM-1.1.6 · checked 2026-09-24
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Yes. On a lot the county's soils map flags for moderate to severe limitations, a detailed soils analysis is required. Development must cluster on the least restricted part of the site.
Applies to a lot where the county soils map shows limits on septic use.
If the soil fails for a tank, the county may require an aerobic system instead.
Walton County Land Development Code, Chapter 4, §4.00.02(A), General Requirements · checked 2026-09-24
Where do you file the application with Onsite Sewage Program, Florida Department of Environmental Protection?
Onsite Sewage Program, Florida Department of Environmental Protection, 2600 Blair Stone Road, MS #3599, Tallahassee, FL 32399-2400, 850-595-0656.
Florida Department of Environmental Protection — Onsite Sewage FAQ, Permitting · checked 2026-09-23
How do you get a copy of your septic permit record in Walton County?
Ask Onsite Sewage Program, Florida Department of Environmental Protection for the permit record for the property. Call 850-595-0656 or start at its website.
Florida Department of Environmental Protection — Onsite Sewage FAQ, Permitting · checked 2026-09-23
Sources
Each figure on this page has a government source and a checked-on date.
- Florida Department of Environmental Protection — Onsite Sewage FAQ, Permitting
- Florida Department of Environmental Protection — Onsite Sewage Program Staff Directory
- Walton County Land Development Code, Chapter 4, §4.02.03(E), Coastal Dune Lake Protection Zone
- Walton County Comprehensive Plan, Coastal Management Element, Policy CM-1.1.6
- Florida Administrative Code, Rule 62-6.030, Fees
- Walton County Building Department — DEP Septic System Approval Disclosure Statement
- USDA NRCS Soil Data Access (SSURGO)
Verify before you act. Septic rules are set locally and they change. Check anything here before you spend money on it. Call the Onsite Sewage Program, Florida Department of Environmental Protection, on 850-595-0656.