Sedgwick County, KS Water Table Trend
Sedgwick County's groundwater trend, from USGS's own readings
Sedgwick County's long-term well puts the trend at 2.1 ft per decade, declining at a typical pace for a declining county, based on 925 measurements since 1939.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Sedgwick County's source well, in detail
Depth to water at the last reading was 13.6 ft below land surface. Readings span 1939-05-22 to 2016-11-01, 925 measurements from USGS well USGS-375441097292601 (25s 02w 01baa 01 M25b), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Sedgwick County compares nationally
Sedgwick County sits at rank 1186th 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. Sedgwick County, Kansas is home to about 536,081 people. See the fastest-moving counties guide for how Sedgwick County stacks up against the most extreme cases nationally.
If you own a well in Sedgwick County
A dropping water table means a residential pump has to reach deeper and work harder, which shortens its life. In Sedgwick County, that trend is real, not assumed: 2.1 ft per decade over 77 years.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Sedgwick 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.