Septic soil in Fredericksburg city, VA, by the numbers

Very limited

In Fredericksburg city, VA, 48.5% 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 48.5% of Fredericksburg city's land. Fredericksburg city covers 10.45 square miles and counts 29,992 residents.

This is a county figure, not a parcel figure

Fredericksburg city'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 Fredericksburg city.

System cost, conventional vs. engineered

Given Fredericksburg city'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.

Where this sits nationally

Nationally, Fredericksburg city, VA is the 2,896-most-constrained of 3,058 rated counties for septic soil. Within Virginia alone it ranks 98 of 110.

Further reading

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