Septic companies in Irvine, CA

What the ground in Irvine is like

The USDA soil survey rates mapped ground in Irvine for septic drain-field suitability across roughly 66 square miles. About 91% 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 Irvine, 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 72% of the rated ground here.

The limiting features the survey records most often here:

• Slow water movement72.5%
• Seepage, bottom layer40.8%
• Slope32.3%
• Depth to bedrock27.9%

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 · 91.3% Very limited · Slow water movement · 76 map units · 65.62 sq mi · read 2026-08-30