Adams County, WA Water Table Trend
Adams County's groundwater trend, from USGS's own readings
Over 32 years of USGS readings, the well tracking Adams County's aquifer is holding roughly steady: 0 ft per decade.
One well stands in for Adams 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 15.8 ft below land surface. Readings span 1993-11-05 to 2025-06-24, 22 measurements from USGS well USGS-465328119195901 (16n/28e-08g01 On04), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Adams County ranks
Of the 1,449 US counties with a usable trend, Adams County ranks 633rd from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 21,039 people live in Adams County, Washington. See the fastest-moving counties guide for how Adams County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Adams 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.