Portsmouth city, VA Water Table Trend
Portsmouth city, VA: what the water table is actually doing
Over 58 years of USGS readings, the well tracking Portsmouth city's aquifer is holding roughly steady: 0.2 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Portsmouth city's source well, in detail
Depth to water at the last reading was 85.7 ft below land surface. Readings span 1968-07-25 to 2026-09-10, 91 measurements from USGS well USGS-365115076191701 (60c 7 Sow 194), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Portsmouth city compares nationally
Portsmouth city sits at rank 468th 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. Portsmouth city, Virginia is home to about 96,482 people. See the fastest-moving counties guide for how Portsmouth city 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 Portsmouth city 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.