Perry County, PA Water Table Trend
Perry County, PA: what the water table is actually doing
Perry County's representative monitoring well shows depth to water holding roughly steady, a fitted trend of 0.2 ft per decade over 25 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Perry County's source well, in detail
Depth to water at the last reading was 13.8 ft below land surface. Readings span 2001-07-03 to 2026-08-13, 197 measurements from USGS well USGS-402735077100901 (Pe 684 Perry 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 Perry County compares nationally
Perry County sits at rank 785th 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. Perry County, Pennsylvania is home to about 46,816 people. See the fastest-moving counties guide for how Perry 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 Perry 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.