What Essex County, NJ's soil rates for a septic system

Very limited

In Essex County, NJ, 82.9% of the surveyed land carries a "Very limited" rating for a standard septic drain field. Practically, that rules out a simple gravity system for most of the county - 82.9% of it sits in USDA's most-constrained bucket. Essex County, NJ is 126.082 square miles with a population of 881,527.

What Essex County's reading doesn't cover

Two lots a mile apart in Essex County can carry different soil, even though they share one countywide rating. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Essex County will actually do.

What a system would cost here

With 82.9% of Essex County rating "Very limited", a standard gravity system is not a safe assumption here. 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, Essex County, NJ is the 1,862-most-constrained of 3,058 rated counties for septic soil. Within New Jersey alone it ranks 10 of 21.

Before you act on this

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