Strafford County, NH Water Table Trend
Is the water table dropping in Strafford County, NH?
Strafford County's representative monitoring well shows depth to water holding roughly steady, a fitted trend of 0 ft per decade over 31 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Strafford County's source well, in detail
Depth to water at the last reading was 18.7 ft below land surface. Readings span 1986-12-02 to 2017-05-30, 276 measurements from USGS well USGS-432534071095601 (Nh-Nfw 53), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Strafford County compares nationally
Strafford County sits at rank 653rd 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. Strafford County, New Hampshire is home to about 134,202 people. See the fastest-moving counties guide for how Strafford 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 Strafford 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.