Septic companies in Caldwell, ID

What the ground in Caldwell is like

The USDA soil survey rates mapped ground in Caldwell for septic drain-field suitability across roughly 25 square miles. About 55% of the rated ground is classed "Somewhat limited", meaning the limits can usually be overcome or reduced by special planning, design or installation.

In Caldwell, 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 92% of the rated ground here.

The limiting features the survey records most often here:

• Slow water movement92.2%
• Depth to saturated zone28.6%
• Depth to cemented pan13.6%
• Seepage, bottom layer13.1%

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 · 54.8% Somewhat limited · Slow water movement · 56 map units · 25.4 sq mi · read 2026-08-30