Cumberland County, ME Water Table Trend
Is the water table dropping in Cumberland County, ME?
Cumberland County's long-term well puts the trend at 1 ft per decade, rising, getting shallower over time, based on 1937 measurements since 1958.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Cumberland County's source well, in detail
Depth to water at the last reading was 32 ft below land surface. Readings span 1958-04-30 to 2026-10-09, 1937 measurements from USGS well USGS-435453070013601 (Me-Cw26 Brunswick, 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 Cumberland County compares nationally
Cumberland County sits at rank 239th 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. Cumberland County, Maine is home to about 313,809 people. See the fastest-moving counties guide for how Cumberland 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 Cumberland 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.