Septic companies in Lebanon, TN

What the ground in Lebanon is like

The USDA soil survey rates mapped ground in Lebanon for septic drain-field suitability across roughly 41 square miles. About 98% of the rated ground is classed "Very limited", meaning the soil has one or more features unfavorable for a conventional drain field, and the limits generally cannot be overcome without major soil reclamation, special design or expensive installation.

In Lebanon, the leading limit is depth to bedrock: rock sits close enough to the surface that there is not enough soil column above it for a conventional field to sit in. Effluent needs that depth to disperse; when bedrock comes up, the workable layer runs out. The survey flags that limit on about 83% of the rated ground here.

The limiting features the survey records most often here:

• Depth to bedrock83.3%
• Slow water movement81.2%
• Slope52.3%
• Depth to saturated zone22.3%

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 · 98.4% Very limited · Depth to bedrock · 50 map units · 41.38 sq mi · read 2026-08-30