Septic suitability in Tazewell County, IL

Very limited

Tazewell County, IL's SSURGO dominant class comes back "Very limited", covering 76.8% of the county. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 76.8% of Tazewell County's land. For scale: 646.486 square miles and 129,821 people call Tazewell County home.

Before you rely on this for one lot

Tazewell County's rating is an average across the whole county, not a promise about any one lot inside it. 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 Tazewell County, IL

Tazewell 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.

Tazewell County's rank among Illinois counties

Among the 3,058 rated counties on this site, Tazewell County, IL ranks 2,187 most-constrained nationally, and 70 of 101 within Illinois.

Further reading

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