Clarke County, VA Water Table Trend
Clarke County, VA: what the water table is actually doing
Over 40 years of USGS readings, the well tracking Clarke County's aquifer is holding roughly steady: 0 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Clarke County's source well, in detail
Depth to water at the last reading was 45.3 ft below land surface. Readings span 1987-03-17 to 2026-08-31, 272 measurements from USGS well USGS-390348078035501 (46w175), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Clarke County compares nationally
Clarke County sits at rank 617th 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. Clarke County, Virginia is home to about 15,598 people. See the fastest-moving counties guide for how Clarke 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 Clarke 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.