Clay County's SSURGO septic rating

Very limited

Clay County, KS's SSURGO dominant class comes back "Very limited", covering 87.3% of the county. A standard gravity system routinely fails on ground like this; the same share of the county falls in USDA's worst absorption-field bucket outright. For scale: 645.298 square miles and 7,969 people call Clay County home.

Before you rely on this for one lot

This is a countywide, area-weighted figure across every soil survey map unit in Clay County, KS - never a reading for one specific parcel. The real answer for one lot is still a site-specific perc test, running about $750-$1,850 (typically near $1,300).

Budgeting for a system in Clay County, KS

Clay County's soil reading pushes the likely outcome toward an engineered system rather than a conventional one. Conventional systems run $3,000-$8,000 where they pass; where they don't, engineered alternatives (mound or aerobic treatment, whichever the health department requires) run $10,000-$40,000 - budget toward the higher figure until a perc test says otherwise.

How Clay County, KS compares

Among the 3,058 rated counties on this site, Clay County, KS ranks 1,525 most-constrained nationally, and 50 of 105 within Kansas.

Before you act on this

How this rating is built, and its real limits · Conventional vs. engineered septic systems