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|Data Type||Begin Date||End Date||Count|
|Current / Historical Observations (availability statement)||2011-07-21||2022-05-22|
|Depth to water level, feet below land surface||2011-07-20||2022-05-22||3947|
|Field groundwater-level measurements||1993-12-13||2022-03-10||174|
Additional Data Sources
|Groundwater Watch **offsite**||1993||2021||3868|
|This site is operated in cooperation with the|
Illinois State Water Survey of the Prairie
Research Institute, University of Illinois.
Since well installation in 1992, water
levels have been measured routinely by the ISWS.
Water levels also have been measured by the USGS
since 2010. Requests for the water-level data
collected by the ISWS should be made through the
ISWS, Center for Groundwater Science (217-333-6800).