Septic Systems in Sevier County, TN

Regulations, costs, soil data & local providers

Pop. 98,380 ~30% on septic ~11,806 septic homes

Septic pumping in Sevier County, Tennessee costs $300-$550 (avg $400). A new septic system installation costs $5,300-$10,650. Approximately 11,806 homes in this county use septic systems.

Septic System Costs in Sevier County

ServiceLowAverageHigh
Pumping / Cleaning$300$400$550
Routine Inspection$200$300$400
Real Estate Inspection$350$500$700
Minor Repair$650$950$4,600
Conventional Installation$5,300$7,600$10,650
Aerobic System Installation$10,000$14,250$19,950
Drainfield Replacement$5,300$7,600$10,650
Perc Test$800$1,150$1,600

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

Groundwater & Water Table in Sevier County

Monitoring Wells
33
Avg Depth to Water
28.6 ft
Median Depth
9 ft
Shallowest Recorded
5.8 ft

Water table depths in this county are generally favorable for conventional septic systems.

Source: USGS National Water Information System. Based on 98 measurements from monitoring wells.

Septic Regulations & Permits in Sevier County

State Regulatory Body
Tennessee Department of Health/Environment
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
No
Advanced Treatment Required
No

Contact county health department for specific requirements.

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

Septic System FAQ for Sevier County

How much does septic pumping cost in Sevier County?
Septic pumping in Sevier County, Tennessee typically costs between $300 and $550, with an average of $400. 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 Sevier County?
A conventional septic system installation in Sevier County typically costs $5,300-$10,650. An aerobic treatment unit (ATU) costs $10,000-$19,950. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Sevier County?
Yes. Virtually all counties in Tennessee 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 Sevier County health department for current requirements and fees.
What soil types are in Sevier County and how do they affect septic systems?
Contact the county health department for soil evaluation requirements.
How often should I pump my septic tank in Sevier 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. With approximately 11,806 septic systems in Sevier County, there are many local providers offering regular pumping services.
How long does a septic system last in Sevier County?
A well-maintained septic system in Sevier 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. 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

Population98,380
Est. Septic Homes11,806
Avg Pumping Cost$400

Common Septic Services

Pumping: $300-$550
Inspection: $200-$400
Repair: $650-$4,600
Installation: $5,300-$10,650

Data last updated: 2026-04-13