Fayette County, PA Water Table Trend
Fayette County, PA: what the water table is actually doing
Over 59 years of USGS readings, the well tracking Fayette County's aquifer is rising, getting shallower over time: 1 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Fayette County's source well, in detail
Depth to water at the last reading was 21.2 ft below land surface. Readings span 1967-08-01 to 2026-06-30, 188 measurements from USGS well USGS-394843079351401 (Fa 17 Fayette 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.
How Fayette County compares nationally
Fayette County sits at rank 243rd of 1,449 ranked counties, ordered rising-to-declining, so a low number means a rising water table and a high one means fast decline. Fayette County, Pennsylvania is home to about 123,941 people. See the fastest-moving counties guide for how Fayette County stacks up against the most extreme cases nationally.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Fayette County can be stable in depth and still worth testing for quality, or declining and still test clean, the two are measured separately, and only a direct test settles the second one.