About The Illinois State Water Survey

Illinois Water Supply Planning

Groundwater Flow Modeling

The Illinois State Water Survey (ISWS) has a long history in the field of groundwater flow modeling. ISWS groundwater scientists pioneered many of the early modeling technologies that were precursors to modern standards such as MODFLOW. Today, the ISWS maintains the Illinois Groundwater Flow Modeling Framework, which consists of one of the largest regional groundwater flow models in the world. This model is indispensable for water supply planning, capable of assessing a wide variety of groundwater issues at local, regional, and interstate scales. The ISWS also maintains periodically updated contouring models to assess changing aquifer conditions.

See: Illinois Groundwater Flow Model



Pre-empting a water crisis in Northeastern Illinois


Splitting Kendall County: The Hydrologic Impact of the Sandwich Fault


The Mahomet Aquifer: Naturally Increasing Recharge Balances Growth in Demand


Translating Groundwater Science to Policy


Recent Publications

Groundwater Flow Models of Illinois: Data, Processes, Model Performance, and Key Results

Groundwater Simulation Modeling and Potentiometric Surface Mapping, McHenry County, IL

Groundwater Studies for Water Supply Planning in Kendall County, IL

Meeting East-Central Illinois Water Needs to 2050: Potential Impacts on the Mahomet Aquifer and Surface Reservoirs

Northeastern Illinois Water Supply Planning Investigations: Opportunities and Challenges of Meeting Water Demand in Northeastern Illinois

Kane County Water Resources Investigations: Simulation of Groundwater Flow in Kane County and Northeastern Illinois


Historic Publications

The New Chicago Model: a Reassessment of the Impacts of Lake Michigan Allocations on the Cambrian-Ordovician Aquifer System in Northeastern Illinois

A 'Random-Walk' Solute Transport Model for Selected Groundwater Quality Evaluations

Aquifer Simulation Model for Use on Disk Supported Small Computer Systems

Selected Digital Computer Techniques for Groundwater Resource Evaluation

Groundwater Resources of the Buried Mahomet Bedrock Valley


Illinois Groundwater Flow Model

Illinois Groundwater Flow Model

Illinois State Water Survey

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