Septic companies in Lake Stevens, WA

What the ground in Lake Stevens is like

The USDA soil survey rates mapped ground in Lake Stevens for septic drain-field suitability across roughly 10 square miles. About 100% 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 Lake Stevens, 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 97% of the rated ground here.

The limiting features the survey records most often here:

• Depth to saturated zone97.3%
• Slope21.4%
• Slow water movement11.5%
• Seepage, bottom layer7.5%

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 · 99.8% Very limited · Depth to saturated zone · 24 map units · 10.16 sq mi · read 2026-08-30