Bureau County, IL Water Table Trend
Is the water table dropping in Bureau County, IL?
Bureau County's long-term well puts the trend at 0.8 ft per decade, rising, getting shallower over time, based on 11 measurements since 1997.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Bureau County's source well, in detail
Depth to water at the last reading was 14.9 ft below land surface. Readings span 1997-07-14 to 2020-08-13, 11 measurements from USGS well USGS-412654089133301 (17n11e-21.3f), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Bureau County compares nationally
Bureau County sits at rank 285th 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. Bureau County, Illinois is home to about 32,486 people. See the fastest-moving counties guide for how Bureau 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 Bureau 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.