Prince George's County's SSURGO septic rating
Very limited
Prince George's County, MD: USDA's soil survey calls 75.1% of the county "Very limited" for a septic leach field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 75.1% of Prince George's County's land. For scale: 482.601 square miles and 966,629 people call Prince George's County home.
Before you rely on this for one lot
This is a countywide, area-weighted figure across every soil survey map unit in Prince George's County, MD - 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 Prince George's County, MD
Prince George's 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.
Prince George's County's rank among Maryland counties
Among the 3,058 rated counties on this site, Prince George's County, MD ranks 2,274 most-constrained nationally, and 15 of 23 within Maryland.
Before you act on this
How this rating is built, and its real limits · Conventional vs. engineered septic systems