What Iberia Parish, LA's soil rates for a septic system

Very limited

In Iberia Parish, LA, 82.8% of the surveyed land carries a "Very limited" rating for a standard septic drain field. That reading means a conventional system is a poor bet here - 82.8% of Iberia Parish lands in the strictest "very limited" bucket USDA uses. Iberia Parish covers 574.74 square miles and counts 67,540 residents.

This is a county figure, not a parcel figure

Iberia Parish's rating is an average across the whole county, not a promise about any one lot inside it. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Iberia Parish.

System cost, conventional vs. engineered

Given Iberia Parish's rating, plan for the engineered-system range rather than the conventional one. The engineered-system range, $10,000-$40,000 (mound or aerobic treatment), is the more realistic number to plan around, against $3,000-$8,000 for a conventional system on the rare lot that passes.

How Iberia Parish, LA compares

Nationally, Iberia Parish, LA is the 1,875-most-constrained of 3,058 rated counties for septic soil. Within Louisiana alone it ranks 41 of 61.

Before you act on this

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