Septic companies in Hillsborough, NC

What the ground in Hillsborough is like

The USDA soil survey rates mapped ground in Hillsborough for septic drain-field suitability across roughly 5.9 square miles. About 85% of the rated ground is classed "Somewhat limited", the survey records restrictions that design and sizing can often work around.

In Hillsborough, 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 99% of the rated ground here.

The limiting features the survey records most often here:

• Slow water movement98.9%
• Depth to bedrock18.0%
• Slope16.2%
• Depth to saturated zone8.4%

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 · 84.9% Somewhat limited · Slow water movement · 25 map units · 5.93 sq mi · read 2026-08-30