Nassau County is located in the North Florida region of Florida. Sandy coastal barrier island soils on Amelia Island with high water tables and tidal influence. Mainland areas feature sandy flatwoods with moderate drainage. Understanding local permit requirements and soil conditions is essential before installing, repairing, or inspecting a septic system.
County DOH site evaluation and construction permit required before installation under FL Statute 381.0065. Soil and water table testing determines system type. Must use a DEP-registered or Master septic contractor. Permit fee approximately $500.
Repair permit required from FL DOH-Nassau Environmental Health. A DEP-licensed contractor must assess the failure and submit a repair plan compliant with DEP rule 62-6 FAC. Repair permit fee approximately $250.
Point-of-sale septic inspection is not required statewide in Florida. Voluntary inspections are available through DEP-licensed contractors. Operating permit renewals required for ATU and performance-based systems.
FL DOH-Nassau Environmental Health
Contact the county environmental health department for permit applications, soil evaluation scheduling, and regulatory questions.
Sandy coastal barrier island soils on Amelia Island with high water tables and tidal influence. Mainland areas feature sandy flatwoods with moderate drainage. Nassau River and St. Marys River corridors have poorly drained alluvial soils with seasonal flooding.
Nassau County includes Fernandina Beach on Amelia Island and is part of the Jacksonville metropolitan area. Growth pressure from Jacksonville has increased development, particularly on Amelia Island. Coastal properties face hurricane and storm surge vulnerabilities. The county has a mix of sewer service in developed areas and septic systems in rural portions. Nassau River and surrounding marshes are environmentally sensitive.
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Septic Installation
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Well Pump Repair
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Septic to Sewer Conversion
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Aerobic Septic System
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PFAS Water Testing
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