Richland Parish, LA: the USDA septic-suitability picture

Very limited

Richland Parish, LA's SSURGO dominant class comes back "Very limited", covering 87% of the county. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 87% of Richland Parish's land. The county spans 555.613 square miles, home to 19,643 people.

What this number does and doesn't tell you

USDA's survey covers the whole of Richland Parish, LA at once, not any single address. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Richland Parish: conventional vs. engineered cost

87% of Richland Parish 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.

How Richland Parish, LA compares

Among the 3,058 rated counties on this site, Richland Parish, LA ranks 1,542 most-constrained nationally, and 31 of 61 within Louisiana.

Related guides

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