York County, ME Water Table Trend
York County's groundwater trend, from USGS's own readings
York County's long-term well puts the trend at 0.2 ft per decade, holding roughly steady, based on 381 measurements since 1988.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
York County's source well, in detail
Depth to water at the last reading was 21.1 ft below land surface. Readings span 1988-07-25 to 2026-10-07, 381 measurements from USGS well USGS-432310070393301 (Me-Yw807 Sanford, Maine), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How York County compares nationally
York County sits at rank 508th 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. York County, Maine is home to about 220,143 people. See the fastest-moving counties guide for how York 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 York 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.