Septic companies in Fairbanks, AK

What the ground in Fairbanks is like

The USDA soil survey rates mapped ground in Fairbanks for septic drain-field suitability across roughly 32 square miles. About 96% of the rated ground is classed "Very limited", the survey records severe restrictions for a conventional drain field across most of that ground.

In Fairbanks, the leading limit is depth to the saturated zone: the water table sits so close to the surface that a drain field has little dry soil left underneath it. Effluent needs unsaturated ground to treat and disperse; when that column is thin, the field has nowhere safe to go. The survey flags that limit on about 81% of the rated ground here.

The limiting features the survey records most often here:

• Depth to saturated zone81.3%
• Ponding77.2%
• Flooding74.7%
• Slow water movement72.1%

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 · 95.9% Very limited · Depth to saturated zone · 49 map units · 31.8 sq mi · read 2026-08-30