Monmouth County's SSURGO septic rating

Very limited

Monmouth County, NJ: USDA's soil survey calls 87.4% of the county "Very limited" for a septic leach field. Practically, that rules out a simple gravity system for most of the county - 87.4% of it sits in USDA's most-constrained bucket. The county spans 468.204 square miles, home to 647,520 people.

What this number does and doesn't tell you

Monmouth County's rating is an average across the whole county, not a promise about any one lot inside it. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Monmouth County: conventional vs. engineered cost

87.4% of Monmouth County 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 Monmouth County, NJ compares

Among the 3,058 rated counties on this site, Monmouth County, NJ ranks 1,512 most-constrained nationally, and 4 of 21 within New Jersey.

Further reading

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