Septic suitability in Emery County, UT
Very limited
Emery County, UT's SSURGO dominant class comes back "Very limited", covering 64.4% of the county. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 64.4% of the county. For scale: 4,462.635 square miles and 10,161 people call Emery County home.
Before you rely on this for one lot
This is a countywide, area-weighted figure across every soil survey map unit in Emery County, UT - 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 Emery County, UT
Emery 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 Emery County, UT compares
Among the 3,058 rated counties on this site, Emery County, UT ranks 2,630 most-constrained nationally, and 24 of 28 within Utah.
Before you act on this
How this rating is built, and its real limits · Conventional vs. engineered septic systems