Penobscot County, ME Water Table Trend
Is the water table dropping in Penobscot County, ME?
Penobscot County's long-term well puts the trend at 0 ft per decade, holding roughly steady, based on 331 measurements since 1978.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Penobscot County's source well, in detail
Depth to water at the last reading was 26.3 ft below land surface. Readings span 1978-04-25 to 2026-10-08, 331 measurements from USGS well USGS-445319068560101 (Me-Pew456 Kenduskeag, 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 Penobscot County compares nationally
Penobscot County sits at rank 680th 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. Penobscot County, Maine is home to about 156,840 people. See the fastest-moving counties guide for how Penobscot 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 Penobscot 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.