Norfolk County, MA Water Table Trend
Is the water table dropping in Norfolk County, MA?
Norfolk County's long-term well puts the trend at 0.1 ft per decade, holding roughly steady, based on 703 measurements since 1964.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Norfolk County's source well, in detail
Depth to water at the last reading was 33.9 ft below land surface. Readings span 1964-11-01 to 2026-08-25, 703 measurements from USGS well USGS-421438071165601 (Ma-Dvw 10r Dover, Ma), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Norfolk County compares nationally
Norfolk County sits at rank 574th 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. Norfolk County, Massachusetts is home to about 740,754 people. See the fastest-moving counties guide for how Norfolk 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 Norfolk 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.