Putnam County, OH Water Table Trend
Putnam County's groundwater trend, from USGS's own readings
Over 56 years of USGS readings, the well tracking Putnam County's aquifer is holding roughly steady: 0.3 ft per decade.
One well stands in for Putnam 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 12.4 ft below land surface. Readings span 1970-06-17 to 2026-07-16, 57 measurements from USGS well OH015-405505084032900 (Pu-1 Oh), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Putnam County ranks
Of the 1,449 US counties with a usable trend, Putnam County ranks 870th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 34,206 people live in Putnam County, Ohio. See the fastest-moving counties guide for how Putnam County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Putnam 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.