Decatur County, GA Water Table Trend
Decatur County, GA: what the water table is actually doing
Decatur County's long-term well puts the trend at 0.5 ft per decade, declining, slower than most declining counties, based on 364 measurements since 1979.
One well stands in for Decatur 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 48.2 ft below land surface. Readings span 1979-01-31 to 2026-10-19, 364 measurements from USGS well USGS-305736084355801 (09f520), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Decatur County ranks
Of the 1,449 US counties with a usable trend, Decatur County ranks 960th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 29,391 people live in Decatur County, Georgia. See the fastest-moving counties guide for how Decatur County stacks up against the most extreme cases nationally.
What a declining table means for a well pump
Because Decatur County's water table is actually declining, not just a general worry, a well owner here should consider comparing home-warranty plans that cover well-pump failure before one happens.
A dropping table says nothing about water quality
Whether Decatur 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.