Central Midwest Water Science Center

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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.

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News

Date published: September 20, 2019

USGS Mobile Water Quality Sensor on Mississippi River Boat

U.S. Geological Survey expands its network of water-quality sensors to include the American Queen Steamboat as she travels the entire length of the Mississippi River collecting nutrient levels and water-quality data along the way.  (Image Courtesy: Iowa Public Radio, Iowa City, Iowa, limited use USGS only)

Date published: May 10, 2019

Media Advisory: USGS Assesses Iowa Flood Levels for Emergency Preparedness

Reporters: Do you want to accompany a USGS field crew as they inspect high-water marks? Please contact Marisa Lubeck or Paul Rydlund. 

Date published: March 7, 2018

USGS Flood Experts Respond to High Water in Central, Northeastern U.S.

Crews from the U.S. Geological Survey have been in the field for weeks measuring flooding in the Midwest and in the Mississippi River watershed, and more recently flooding and storm tides on the Northern Atlantic coast, as higher temperatures, heavy rain, snowmelt and nor’easters affected numerous states. 

Publications

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Year Published: 2020

Continuous nitrate monitoring in groundwater and potential contribution to surface-water nitrogen loads in Mason County, Illinois

Illinois has some of the most productive farmland in the country. The use of fertilizers to improve crop production has increased, which has resulted in an increase in the concentration of nitrogen in many streams and aquifers. The U.S. Geological Survey, in cooperation with the Illinois Environmental Protection Agency, is continuously monitoring...

Gruhn, Lance R.; Nalley, Greg M.
Gruhn, L.R., and Nalley, G.M., 2020, Continuous nitrate monitoring in groundwater and potential contribution to surface-water nitrogen loads in Mason County, Illinois: U.S. Geological Survey Fact Sheet 2019–3064, 4 p., https://doi.org/10.3133/fs20193064.

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Year Published: 2020

De facto water reuse: Bioassay suite approach delivers depth and breadth in endocrine active compound detection

Although endocrine disrupting compounds (EDCs) have been detected in wastewater and surface waters worldwide using a variety of in vitro effects-based screening tools, e.g. bioassays, few have examined potential attenuation of environmental contaminants by both natural (sorption, degradation, etc) and anthropogenic (water treatment practices)...

Medlock Kakaley, Elizabeth K; Blackwell, Brett R.; Cardon, Mary C.; Conley, Justin M.; Evans, Nicola; Feifarek, David J.; Furlong, Edward; Glassmeyer, Susan T.; Gray, L. Earl Jr.; Hartig, Phillip C.; Kolpin, Dana W.; Mills, Marc A.; Rosenblum, Laura; Villeneuve, Daniel L.; Wilson, Vickie S.

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Year Published: 2019

Bathymetric map and surface area and capacity table for Beaver Lake near Rogers, Arkansas, 2018

Beaver Lake was constructed in 1966 on the White River in the northwest corner of Arkansas for flood control, hydroelectric power, public water supply, and recreation. The surface area of Beaver Lake is about 27,900 acres and approximately 449 miles of shoreline are at the conservation pool level (1,120 feet above the North American Vertical Datum...

Huizinga, Richard J.; Ellis, Jarrett T.; Sharpe, Jennifer B.; LeRoy, Jessica Z.; Richards, Joseph M.
Huizinga, R.J., Ellis, J.T., Sharpe, J.B., LeRoy, J.Z., and Richards, J.M., 2019, Bathymetric map and surface area and capacity table for Beaver Lake near Rogers, Arkansas, 2018: U.S. Geological Survey Scientific Investigations Map 3445, 2 sheets, https://doi.org/10.3133/sim3445.