Columbia County, NY Water Table Trend
Is the water table dropping in Columbia County, NY?
Columbia County's representative monitoring well shows depth to water holding roughly steady, a fitted trend of 0 ft per decade over 22 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Columbia County's source well, in detail
Depth to water at the last reading was 10.7 ft below land surface. Readings span 2004-10-27 to 2026-06-11, 117 measurements from USGS well USGS-422241073274601 (Local Number, Cb-1071, Canaan Ny), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Columbia County compares nationally
Columbia County sits at rank 627th 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. Columbia County, New York is home to about 60,299 people. See the fastest-moving counties guide for how Columbia 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 Columbia 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.