About The Illinois State Water Survey

Illinois Water Supply Planning


Rock River Region

Regional water supply planning in the Rock River Region is focused on flow in the Rock and Green Rivers, the impact of groundwater withdrawals from Cambrian-Ordovician sandstone, shallow bedrock, and sand and gravel aquifers, and the potential for contamination in shallow groundwater systems that could adversely impact water supply. This region includes the following eleven counties: Jo Daviess, Stephenson, Winnebago, Boone, Carroll, Ogle, Whiteside, Lee, Rock Island, Henry, and Bureau.

Interactive Maps

Interactive maps specific to this region will become available as the water supply planning process progresses. Statewide maps with information related to groundwater demands can be found here.

Recent Publications

Changing Groundwater Levels in the Sandstone Aquifers of Northern Illinois and Southern Wisconsin: Impacts on Available Water Supply

Karst of the Driftless Area of Jo Daviess County, Illinois

Rock River Basin Streamflow Assessment Model

Groundwater Conditions of the Principal Aquifers of Lee, Whiteside, Bureau, and Henry Counties, Illinois

Ground-water Contamination by Volatile Organic Compounds: Site Characterization, Spatial and Temporal Variability

 

 

 

Regions

 

Illinois State Water Survey

2204 Griffith Dr., MC-674
Champaign, IL 61820-7463
217-244-5459
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