Erie County, PA Water Table Trend
Erie County, PA: what the water table is actually doing
Erie County's long-term well puts the trend at 0.2 ft per decade, holding roughly steady, based on 149 measurements since 1966.
One well stands in for Erie 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 19.7 ft below land surface. Readings span 1966-06-21 to 2026-09-16, 149 measurements from USGS well USGS-415607080044601 (Er 82 Erie County Observation Well), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Erie County ranks
Of the 1,449 US counties with a usable trend, Erie County ranks 480th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 267,750 people live in Erie County, Pennsylvania. See the fastest-moving counties guide for how Erie County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Erie 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.