Operators based within 12 miles of Unionville

Listed by where the business is, not by who it says it serves. Every operator here holds a current state permit, and the address it is placed by comes from the state's own published list — so this is a checkable claim rather than a service-area promise. A Tennessee installer permit is valid statewide, so operators further out can work here too; these are simply the ones closest to you.

Soil and septic suitability around Unionville

The USDA has already rated this ground for exactly one use: a septic tank absorption field. Within 4 miles of Unionville — 32,009 acres across 53 soil map units — it rates 83.7% of the land very limited for that use and 5.5% somewhat limited, leaving 0.1% with no rated limitation.

• Very limited · 83.7%
• Somewhat limited · 5.5%
• Not limited · 0.1%
• Not rated · 10.7%

What the limitation actually is

A rating on its own tells you nothing you can act on. The reasons do, and around Unionville the leading one is slow water movement on 76.9% of the mapped area, followed by depth to bedrock on 58.4%. In full:

Shares overlap: most soils here are limited for more than one reason at once, so these do not sum to 89.2%.

The soils themselves

The named soils and land types that make up most of the ground around Unionville. Talbott alone accounts for 34% of it.

“None in profile” means SSURGO records no bedrock or other restrictive layer within the depth it describes, not that none exists.

What that means if you are building or repairing here

Slow-draining soil

The ground around Unionville holds water. Tennessee measures this as an absorption rate in minutes per inch, and slow soil does not fail a site so much as enlarge it: the slower the rate, the more trench length the same household needs, and past a point a conventional field stops being approvable at all. A slow site is normally still buildable on a low-pressure pipe or drip design, and that is the point at which the installer list matters, because most licence holders in Tennessee are not endorsed for either.

Shallow bedrock

This is limestone country, and around Unionville the rock is close enough to the surface to be the governing constraint. A drain field is a shallow excavation: the trench has to sit in natural soil, with room beneath it for effluent to move down and be treated. Rock under the trench does not treat anything, and it cannot be solved by digging deeper or by blasting — breaking rock produces a hole, not a soil profile. What a shallow site usually means in practice is a shallow-placement or low-pressure pipe design, imported fill, or a field sited well away from the house on whatever part of the lot runs deepest — which is why a soil map is worth having before you decide where the house goes.

A seasonal water table

Some of the ground around Unionville carries a water table that rises close to the surface for part of the year and is nowhere to be seen for the rest of it. A field built into saturated soil does not treat effluent and does not drain, and the soil does not have to be wet on the day it is looked at for that to be true — the evidence is in the profile, as mottling and grey colours, which is one of the reasons the work is done by someone trained to read a soil pit rather than by timing water in a hole in August.

Area of interest: a 4-mile radius around the USGS Geographic Names centre point for Unionville (GNIS 1273262, 35.6217, -86.5925), chosen because five of this state's communities are unincorporated and have no boundary to use, and because the lots that need a septic permit are in the ring around a town rather than inside it. Soil from USDA-NRCS Soil Data Access, SSURGO interpretation “ENG - Septic Tank Absorption Fields”, area-weighted by mapped acreage and by each component's share of its map unit. Survey areas: . Retrieved 2026-09-09.

This is a survey, not a soil map for your lot. A permit needs a high-intensity map of the specific parcel, produced by a TDEC-approved soil consultant — see soil map vs perc test.

By service

• Septic System Repair in Unionville
• Septic Installation in Unionville

Permitting in Bedford County

Septic permitting in Bedford County is administered by the State of Tennessee, not the county health department. See the Bedford County detail →