Prince William County, VA Water Table Trend
Is the water table dropping in Prince William County, VA?
Prince William County's representative monitoring well shows depth to water holding roughly steady, a fitted trend of 0 ft per decade over 58 years of readings.
One well stands in for Prince William 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 10.3 ft below land surface. Readings span 1968-11-07 to 2026-09-09, 1302 measurements from USGS well USGS-385607077381101 (49v 1), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Prince William County ranks
Of the 1,449 US counties with a usable trend, Prince William County ranks 611th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 497,003 people live in Prince William County, Virginia. See the fastest-moving counties guide for how Prince William County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Prince William 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.