Lawrence County, MO: the USDA septic-suitability picture

Very limited

Lawrence County, MO's SSURGO dominant class comes back "Very limited", covering 97.4% of the county. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 97.4% of Lawrence County's land. The county spans 611.753 square miles, home to 39,151 people.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Lawrence County, MO - never a reading for one specific parcel. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Lawrence County: conventional vs. engineered cost

97.4% of Lawrence County carrying a "Very limited" reading changes the realistic budget here. 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.

Lawrence County's rank among Missouri counties

Among the 3,058 rated counties on this site, Lawrence County, MO ranks 327 most-constrained nationally, and 35 of 114 within Missouri.

Before you act on this

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