USGS, Science for a Changing World
National Water-Quality Assessment Program
Upper Illinois River Basin

About the Upper Illinois River Basin (UIRB) Study

Publications

Data

Contact Us

Other Resources

About the National Water-Quality Assessment (NAWQA) Program

About the upper Illinois River Basin (UIRB) Study

Description of Basin

Sites Sampled

Urban Land-Use Gradient Special Study

Liaison Committee

Photos


Page maintained by: Terri Arnold
Last modified: Mon Jun 24 12:43:26 CDT 2002
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