Guilford County, NC Water Table Trend
Is the water table dropping in Guilford County, NC?
Guilford County's long-term well puts the trend at 0.5 ft per decade, holding roughly steady, based on 97 measurements since 2008.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Guilford County's source well, in detail
Depth to water at the last reading was 20.3 ft below land surface. Readings span 2008-12-30 to 2024-02-26, 97 measurements from USGS well USGS-361011079595401 (Gu-659 At Oak Ridge Regolith), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Guilford County compares nationally
Guilford County sits at rank 365th 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. Guilford County, North Carolina is home to about 558,816 people. See the fastest-moving counties guide for how Guilford 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 Guilford 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.