Chester County, SC Water Table Trend
Chester County's groundwater trend, from USGS's own readings
Chester County's long-term well puts the trend at 1.1 ft per decade, declining, slower than most declining counties, based on 201 measurements since 1993.
One well stands in for Chester County's whole aquifer here, the honest simplification every page on this site carries.
What the well actually measured
The most recent reading put water 93.9 ft below land surface. Readings span 1993-09-28 to 2026-08-24, 201 measurements from USGS well USGS-344000081250011 (Ctr- 21), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Chester County ranks
Of the 1,449 US counties with a usable trend, Chester County ranks 1105th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 32,323 people live in Chester County, South Carolina. See the fastest-moving counties guide for how Chester County stacks up against the most extreme cases nationally.
What a declining table means for a well pump
Because Chester County's water table is actually declining, not just a general worry, a well owner here should consider comparing home-warranty plans that cover well-pump failure before one happens.
A dropping table says nothing about water quality
Whether Chester County's water table is rising or falling is independent of what's actually in the water. Depletion can concentrate naturally-occurring minerals, so it's worth checking directly with a water test rather than assuming a depth trend says anything about quality.