Champaign County, OH Water Table Trend
Is the water table dropping in Champaign County, OH?
Over 62 years of USGS readings, the well tracking Champaign County's aquifer is rising, getting shallower over time: 1.5 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Champaign County's source well, in detail
Depth to water at the last reading was 14.4 ft below land surface. Readings span 1964-02-28 to 2026-07-27, 60 measurements from USGS well OH015-400638083453900 (Ch-3 Oh), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Champaign County compares nationally
Champaign County sits at rank 173rd 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. Champaign County, Ohio is home to about 38,907 people. See the fastest-moving counties guide for how Champaign 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 Champaign 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.