Carson City, NV Water Table Trend
Carson City's groundwater trend, from USGS's own readings
Carson City's long-term well puts the trend at 0.5 ft per decade, holding roughly steady, based on 91 measurements since 1966.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Carson City's source well, in detail
Depth to water at the last reading was 10 ft below land surface. Readings span 1966-06-04 to 2026-03-13, 91 measurements from USGS well USGS-390831119422001 (103 N15 E20 26baab1 Carson City Parks Dept), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Carson City compares nationally
Carson City sits at rank 946th 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. Carson City, Nevada is home to about 58,148 people. See the fastest-moving counties guide for how Carson 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 Carson 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.