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Central Midwest Water Science Center

Welcome to the Central Midwest Water Science Center’s (CMWSC) Website. We offer information on streamflow, water quality, water-use, and groundwater data for Illinois, Iowa, and Missouri. We conduct unbiased, scientific hydrologic investigations & research projects to effectively manage CMWSC and our Nation's water resources through joint efforts with our partners.

 

News

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Southeast Region (SER) Science Workshop: Identifying Science to Meet Administration Priorities and the Needs of Our Stakeholders

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USGS Unveils Mobile Flood Tool for the Nation

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USGS Responds to Spring Flooding

Publications

Quality of surface water in Missouri, water year 2020

The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, monitors stations designed for the Ambient Water-Quality Monitoring Network, a collection of stations that monitor streams and springs in Missouri. During water year 2020 (October 1, 2019, through September 30, 2020), the U.S. Geological Survey collected water-quality data at 72 stations: 70 Ambient Water

Uncertainty analysis of index-velocity meters and discharge computations at the Chicago Sanitary and Ship Canal near Lemont, Illinois, water years 2006–16

Monitoring discharge in the Chicago Sanitary and Ship Canal is critical for the accounting done by the U.S. Army Corps of Engineers of the diversion of water from Lake Michigan to the Mississippi River Basin by the State of Illinois. The primary streamgage used for this discharge monitoring, the Chicago Sanitary and Ship Canal near Lemont, Illinois (U.S. Geological Survey station 05536890), is ope

FluOil: A novel tool for modeling the transport of oil-particle aggregates in inland waterways

Spilled oil in inland waterways can aggregate with mineral and organic particles to form oil-particle aggregates (OPAs). OPAs can be transported in suspension or deposited to the bed. Modeling the fate and transport of OPAs can provide useful information for making mitigation decisions. A novel open-source tool, FluOil, is developed to predict where OPAs may deposit and when they arrive in affecte

Science

Iowa Alluvial Aquifer

This study is part of ongoing research in Iowa to investigate the availability (quantity and quality) of water in alluvial aquifers that are used for agricultural, domestic, municipal, and industrial supplies. Previous research included modeling and delineation of ground water flow in the Mississippi River, Des Moines River, iowa, and Cedar River alluvial aquifers. The water quality of these and...
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Iowa Alluvial Aquifer

This study is part of ongoing research in Iowa to investigate the availability (quantity and quality) of water in alluvial aquifers that are used for agricultural, domestic, municipal, and industrial supplies. Previous research included modeling and delineation of ground water flow in the Mississippi River, Des Moines River, iowa, and Cedar River alluvial aquifers. The water quality of these and...
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Illinois Nutrient Monitoring Sites

Eight nutrient monitoring stations were established in 2015 to continuously monitor nutrient and sediment concentrations and loads in support of the Illinois Nutrient Loss Reduction Strategy. This site provides current and historical monitoring information for the eight nutrient monitoring stations.
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Illinois Nutrient Monitoring Sites

Eight nutrient monitoring stations were established in 2015 to continuously monitor nutrient and sediment concentrations and loads in support of the Illinois Nutrient Loss Reduction Strategy. This site provides current and historical monitoring information for the eight nutrient monitoring stations.
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Iowa Flood Information

The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods. This site provides information about flooding that has occurred in Iowa.Real-time information on floods in Iowa is available throught the USGS National Water Information System (NWIS).A map of Iowa gages currently at high-flow or flood conditions can...
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Iowa Flood Information

The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods. This site provides information about flooding that has occurred in Iowa.Real-time information on floods in Iowa is available throught the USGS National Water Information System (NWIS).A map of Iowa gages currently at high-flow or flood conditions can...
Learn More