Somerset County, NJ Water Table Trend
Is the water table dropping in Somerset County, NJ?
Somerset County's long-term well puts the trend at 0 ft per decade, holding roughly steady, based on 151 measurements since 2002.
One well stands in for Somerset County's whole aquifer here, the honest simplification every page on this site carries.
What the well actually measured
The most recent reading put water 8.1 ft below land surface. Readings span 2002-11-04 to 2026-10-23, 151 measurements from USGS well USGS-403200074420601 (350138-- Mw110), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Somerset County ranks
Of the 1,449 US counties with a usable trend, Somerset County ranks 639th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 357,467 people live in Somerset County, New Jersey. See the fastest-moving counties guide for how Somerset County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Somerset County's water table is rising or falling is independent of what's actually in the water. Depletion can concentrate naturally-occurring minerals, so it's worth checking directly with a water test rather than assuming a depth trend says anything about quality.