Septic Systems in Union County, FL

Regulations, costs, soil data & local providers

Pop. 16,147 ~26.4% on septic ~1,705 septic homes Poorly drained soil

Septic pumping in Union County, Florida costs $400-$750 (avg $550). A new septic system installation costs $7,750-$15,450. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 1,705 homes in this county use septic systems.

Septic System Costs in Union County

ServiceLowAverageHigh
Pumping / Cleaning$400$550$750
Routine Inspection$300$400$550
Real Estate Inspection$500$750$1050
Minor Repair$1,000$1,400$6,800
Conventional Installation$7,750$11,050$15,450
Aerobic System Installation$14,500$20,700$29,000
Drainfield Replacement$7,750$11,050$15,450
Perc Test$1,150$1,650$2,300

Cost estimates based on regional market data for Union County, Florida. Actual costs depend on system type, site conditions, and provider.

Soil & Septic Suitability in Union County

Drainage Class
Poorly drained
Hydrologic Group
B/D
Unique Soil Types
27

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Blanton 204 Moderately well drained A
Dorovan 185 Very poorly drained B/D
Surrency 150 Very poorly drained A/D
Albany 123 Somewhat poorly drained A/D
Pamlico 114 Very poorly drained A/D

Septic Tank Absorption Field Suitability

USDA NRCS rates soil suitability for septic absorption fields across this county:

Not Limited (Good)0%
Somewhat Limited15.1%
Very Limited84.9%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Septic Regulations & Permits in Union County

State Regulatory Body
Florida Department of Health
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
Yes
Advanced Treatment Required
In designated areas

Enhanced Nutrient Reducing OSTDS required in Indian River Lagoon basin. 65% nitrogen reduction mandate by 2030.

Contact the Union County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Union County

How much does septic pumping cost in Union County?
Septic pumping in Union County, Florida typically costs between $400 and $750, with an average of $550. Costs vary by tank size (1,000-1,500 gallons is typical), ease of access, distance from the pumping company, and how full the tank is. Most homeowners should pump their tank every 3-5 years.
How much does a new septic system cost in Union County?
A conventional septic system installation in Union County typically costs $7,750-$15,450. An aerobic treatment unit (ATU) costs $14,500-$29,000. Given the predominantly poorly drained soils in this area, some sites may require alternative system types. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Union County?
Yes. Virtually all counties in Florida require a permit before installing, repairing, or replacing a septic system. The permit process typically involves a soil evaluation or percolation test, system design by a licensed professional, application to the county health department, and one or more inspections during installation. Contact the Union County health department for current requirements and fees.
What soil types are in Union County and how do they affect septic systems?
Union County has predominantly Blanton, Dorovan, Surrency soils. The dominant drainage class is Poorly drained with hydrologic group B/D. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 15.1% as "Somewhat Limited", and 84.9% as "Very Limited".
How often should I pump my septic tank in Union County?
The EPA recommends pumping your septic tank every 3-5 years for a typical household. The exact frequency depends on tank size, household size, and water usage. A 1,000-gallon tank serving a family of 4 should generally be pumped every 3 years. Some counties in Florida have mandatory pumping schedules — check with your local health department.
Can I install a conventional septic system in Union County?
It depends on your specific site. USDA soil data shows that 84.9% of soils in Union County are rated "Very Limited" for septic absorption fields, while only 0% are "Not Limited." This means many properties will require alternative systems such as mound systems, pressure distribution systems, or aerobic treatment units. A percolation test ($1150-$2300) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Union County?
A well-maintained septic system in Union County typically lasts 25-30 years, though some components may need attention sooner. The concrete septic tank itself can last 40+ years, while the drainfield — the most critical and expensive component — usually lasts 15-25 years depending on soil conditions (Union County has predominantly poorly drained soils). Regular pumping every 3-5 years and avoiding excess water usage are the two most effective ways to extend system life.

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Quick Facts

Population16,147
Est. Septic Homes1,705
Avg Pumping Cost$550
Drainage ClassPoorly drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $400-$750
Inspection: $300-$550
Repair: $1,000-$6,800
Installation: $7,750-$15,450

Data last updated: 2026-04-13