Water data for Michigan, Minnesota, and Wisconsin
Access real-time and historical data for surface water, groundwater, water quality, and water use
Access real-time and historical data for surface water, groundwater, water quality, and water use
Edge-of-field monitoring
Testing the effectiveness of agricultural conservation practices for reducing nutrient and sediment runoff
Testing the effectiveness of agricultural conservation practices for reducing nutrient and sediment runoff
SPARROW models of streamflow and nitrogen, phosphorus, and suspended-s
SPARROW Watershed Models of Loads in Midwest Streams
SPARROW Watershed Models of Loads in Midwest Streams
Great Lakes urban stormwater monitoring
Assessing the ability of green infrastructure to reduce stormwater runoff in Great Lakes urban areas
Assessing the ability of green infrastructure to reduce stormwater runoff in Great Lakes urban areas
Great Lakes mercury sources revealed
Mercury "footprinting" identifies sources of pollution in the Great Lakes
Mercury "footprinting" identifies sources of pollution in the Great Lakes
Upper Midwest Water Science Center
Welcome to the Upper Midwest Water Science Center’s (UMid) Website. We offer information on streamflow, water quality, water-use, and groundwater data for Minnesota, Wisconsin and Michigan. We conduct unbiased, scientific hydrologic investigations and research projects to effectively manage the Upper Midwest's and our Nation's water resources through joint efforts with our partners.
Current conditions in MI, MN, and WI
Current conditions in MI, MN, and WI
Explore real-time streamflow, groundwater, and water-quality conditions and access data with our interactive map application.
Message from the Director
Message from the Director
Learn more about the Upper Midwest Water Science Center from Steve Peterson, our Center Director.
Upper Midwest Water Science Center Quick Links
Upper Midwest Water Science Center Quick Links
News
Hot spots and cold snaps: Daily stream temperature data across the U.S. from 1979-2021
Hot spots and cold snaps: Daily stream temperature data across the U.S. from 1979-2021
Upper Midwest Water Science Center Great Waters Newsletter: Fall/Winter 2025/2026
Upper Midwest Water Science Center Great Waters Newsletter: Fall/Winter 2025/2026
Social Media Spotlight: 2025 Holiday Streamgage Countdown
Social Media Spotlight: 2025 Holiday Streamgage Countdown
Publications
Treatability study to evaluate bioremediation of trichloroethene at Site K, former Twin Cities Army Ammunition Plant, Arden Hills, Minnesota, 2020–22 Treatability study to evaluate bioremediation of trichloroethene at Site K, former Twin Cities Army Ammunition Plant, Arden Hills, Minnesota, 2020–22
Executive Summary Chlorinated solvents, including trichloroethene (TCE) and other chlorinated volatile organic compounds (cVOCs), are widespread contaminants that can be treated by bioremediation approaches that enhance anaerobic reductive dechlorination. Reductive dechlorination can be enhanced either through the addition of an electron donor (biostimulation) or the addition of a known
Ensemble methods for history matching and uncertainty quantification with a watershed model Ensemble methods for history matching and uncertainty quantification with a watershed model
History matching of large hydrologic models is challenging due to data sparsity and non-unique process combinations (and associated parameters) that can produce similar model predictions. We develop an ensemble-based history matching (and uncertainty quantification) approach using an iterative ensemble smoother (iES) method for three cutouts of the National Hydrologic Model (NHM) and...
Teach me how to pycap: A high-capacity well decision support tool using analytical solutions in Python Teach me how to pycap: A high-capacity well decision support tool using analytical solutions in Python
Regulatory agencies in humid temperate environments rely on timely evaluations of streamflow depletion and drawdown to protect aquatic ecosystems and existing water users. Numerical models offer detailed insights, but their complexity and time demands often preclude their practical use in rapid decision-making. We present pycap-dss, an open-source Python package that implements a suite...
Science
Low-Cost Sensor Networks for Pluvial Flash Flood Detection and Early Warning in Urban Areas
Flooding in urban areas is a serious weather-related threat to life and property. One type of flooding, called pluvial flooding, occurs during periods of intense rainfall where runoff overwhelms the capacity of soil to absorb it. In urban areas, pluvial flooding can be particularly dangerous because much of a city is covered by impervious surfaces such as streets, roofs, and parking lots forcing...
Oscillating Flows in the Milwaukee River Estuary
How do Lake Michigan water level variations and seiches affect the Milwaukee River estuary, its harbor, and rivers upstream?
Thermal Imagery to Inform Brook Trout Habitat Suitability and Restoration Potential, Upper Namekagon River, Wisconsin
The U.S. Geological Survey (USGS), in cooperation with the National Park Service (NPS), is using thermal infrared technology to identify cold-water habitat for brook trout and other cold-water species in the upper Namekagon River in Wisconsin. The upper Namekagon River and its tributaries have long served as a stronghold for brook trout and other cold- and cool-water species; however, changing...