Rensselaer County, NY Water Table Trend
Rensselaer County, NY: what the water table is actually doing
Rensselaer County's long-term well puts the trend at 0.7 ft per decade, declining, slower than most declining counties, based on 124 measurements since 1982.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Rensselaer County's source well, in detail
Depth to water at the last reading was 38.6 ft below land surface. Readings span 1982-10-14 to 2026-07-01, 124 measurements from USGS well USGS-423534073423401 (Local Number, Re-703, East Greenbush 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 Rensselaer County compares nationally
Rensselaer County sits at rank 1013th 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. Rensselaer County, New York is home to about 160,749 people. See the fastest-moving counties guide for how Rensselaer County stacks up against the most extreme cases nationally.
If you own a well in Rensselaer County
A dropping water table means a residential pump has to reach deeper and work harder, which shortens its life. In Rensselaer County, that trend is real, not assumed: 0.7 ft per decade over 44 years.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Rensselaer 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.