Septic soil in Marion County, FL, by the numbers

Very limited

In Marion County, FL, 88.7% of the surveyed land carries a "Very limited" rating for a standard septic drain field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 88.7% of Marion County's land. Marion County covers 1,588.443 square miles and counts 428,905 residents.

This is a county figure, not a parcel figure

Nothing about Marion County, FL's SSURGO figure applies to a specific address - it's a county-wide average. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Marion County.

System cost, conventional vs. engineered

Given Marion County'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.

Marion County's rank among Florida counties

Nationally, Marion County, FL is the 1,394-most-constrained of 3,058 rated counties for septic soil. Within Florida alone it ranks 28 of 65.

Further reading

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