Septic companies in Fort Smith, AR

What the ground in Fort Smith is like

The USDA soil survey rates mapped ground in Fort Smith for septic drain-field suitability across roughly 64 square miles. About 99% 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 Fort Smith, the leading limit is slow water movement: effluent does not drain through the soil fast enough, so a conventional field can back up or pond when the ground cannot keep pace. The survey flags that limit on about 79% of the rated ground here.

The limiting features the survey records most often here:

• Slow water movement78.9%
• Depth to saturated zone65.2%
• Depth to bedrock27.6%
• Seepage, bottom layer20.0%

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 · 99.3% Very limited · Slow water movement · 40 map units · 64.23 sq mi · read 2026-08-30