Septic companies in Sevierville, TN

What the ground in Sevierville is like

The USDA soil survey rates mapped ground in Sevierville for septic drain-field suitability across roughly 25 square miles. About 80% of the rated ground is classed "Very limited", the survey records severe restrictions for a conventional drain field across most of that ground.

In Sevierville, the leading limit is slope: the ground falls steeply enough that a level trench line is hard to hold. A drain field has to sit across the grade without concentrating flow downhill; on steeper parcels that layout gets tighter. The survey flags that limit on about 64% of the rated ground here.

The limiting features the survey records most often here:

• Slope63.6%
• Slow water movement60.9%
• Depth to bedrock48.6%
• Flooding27.4%

This is survey data for mapped areas, not a substitute for a site evaluation on your own lot. Conditions on a single parcel can differ from the map.

USDA NRCS SSURGO, ENG Septic Tank Absorption Fields · 79.8% Very limited · Slope · 47 map units · 24.51 sq mi · read 2026-08-30