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Discharge ratings for control gates at Mississippi River Lock and Dam 11, Dubuque, Iowa

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Occurrence and transport of nutrients in the Missouri River Basin, April through September 2011

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Effects of climatic variations over 11 years on nitrate-nitrogen concentrations in the Raccoon River, Iowa

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Discharge ratings for control gates at Mississippi River Lock and Dam 16, Muscatine, Iowa

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Discharge ratings for control gates at Mississippi River lock and dam 12, Bellevue, Iowa

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Transport of nitrogen and phosphorus in the Cedar River Basin, Iowa and Minnesota, 2000–15

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Nitrate in the Mississippi River and its tributaries, 1980 to 2008: Are we making progress?

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Application of geophysical methods to enhance aquifer characterization and groundwater-flow model development, Des Moines River alluvial aquifer, Des Moines, Iowa, 2022

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Sediment and nutrient retention on a reconnected floodplain of an Upper Mississippi River tributary, 2013–2018

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It's not just how high; it's how clean: Sampling the spring 2001 flood in the Upper Mississippi River Basin

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Herbicides and nitrates in the Iowa River alluvial aquifer prior to changing land use, Iowa County, Iowa, 1996

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Summary appraisals of the nation's ground-water resources – Upper Mississippi region

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Floods of September 15-16, 1992, in the Thompson, Weldon, and Chariton River basins, south-central Iowa

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Reconstructing missing data by comparing interpolation techniques: Applications for long-term water quality data

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Bathymetric mapping, sediment quality, and water quality of Lake Delhi, Iowa, 2001-02

Photography
Wild celery, a stringy green aquatic plant growing in the water

Wild celery in Pool 13 of the Upper Mississippi River
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An evaluation of the relative quality of dike pools for benthic macroinvertebrates in the Lower Missouri River, USA

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Validation of eDNA markers for New Zealand mudsnail surveillance and initial eDNA monitoring at Mississippi River Basin sites

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Ground Water Atlas of the United States: Segment 9, Iowa, Michigan, Minnesota, Wisconsin

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Environmental settings of the South Fork Iowa River basin, Iowa, and the Bogue Phalia basin, Mississippi, 2006-10

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Exploring relationships among land ownership, agricultural land use, and native fish species richness in the Upper Mississippi River Basin

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Ground-water quality in alluvial aquifers in the eastern Iowa basins, Iowa and Minnesota

State News Release
Image of a red dye study conducted in the Brandon Road Lock on the Des Plaines River near Joliet, Illinois, in 2015.

Red Dye Study Will Examine Water Flow through Auxiliary Lock 14 near the Quad Cities

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Hydrographic surveys at seven chutes and three backwaters on the Missouri River in Nebraska, Iowa, and Missouri, 2011-13

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Floods of July 12, 1972, March 19, 1979, and June 15, 1991, in the Turkey River Basin, northeast Iowa

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Temporal changes in spatial patterns of submersed macrophytes in two impounded reaches of the Upper Mississippi River, USA, 1998-2009

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Effectiveness of an alluvial wetland on improving ground-water quality in a municipal well field, Cedar Rapids, Iowa, 1998-2006

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Habitat use and movements of shovelnose sturgeon in Pool 13 of the upper Mississippi River during extreme low flow conditions

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Concentrations, loads, and yields of select constituents from major tributaries of the Mississippi and Missouri Rivers in Iowa, water years 2004-2008

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The relation of fish community composition to riparian cover and runoff potential in the Minnesota River basin, Minnesota and Iowa, 1997

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