Colorado Water Science Center

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Welcome to the USGS Colorado Water Science Center!  Please use these pages to explore the hydrologic data and scientific investigations we conduct on Colorado water resources.

Current Water Conditions

Current Water Conditions

Explore real-time Colorado streamflow, groundwater, and water-quality conditions.

Current Conditions

Science Highlight

Science Highlight

To better characterize the water supply capacity of Clear Creek Reservoir, a bathymetry survey was conducted. The methods used allowed water-resource managers to maintain typical reservoir operations and eliminate the need to empty the reservoir.

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News

Date published: May 12, 2020

USGS Responds to Spring Flooding

U.S. Geological Survey field crews are measuring flooding across the country as spring weather is in full swing. Warming temperatures, increased precipitation and snowmelt have caused moderate to major flooding in the upper Midwest, East Coast, Central Plains and the Southeast portions of the country.

Date published: May 13, 2019

2019 USGS Unmanned Aircraft Systems Aquatic Airshow

A USGS Unmanned Aircraft Systems Aquatic Airshow field testing and demonstration event occurred 4/30/2019 - 5/2/2019 on the Saco River near Biddeford, and the Androscoggin River near Lewiston in Maine, USA.

Date published: September 14, 2018

Big Thompson Floods of 1976 and 2013 - A Visual Comparison

The Big Thompson Floods of 1976 and 2013 shown visually. The inundation images reflect the location and peak streamflows at certain points between Estes Park and Loveland, Colorado.

Publications

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Year Published: 2020

Conceptual framework and approach for conducting a geoenvironmental assessment of undiscovered uranium resources

This report presents a novel conceptual framework and approach for conducting a geologically based environmental assessment, or geoenvironmental assessment, of undiscovered uranium resources within an area likely to contain uranium deposits. The framework is based on a source-to-receptor model that prioritizes the most likely contaminant sources,...

Gallegos, Tanya J.; Walton-Day, Katherine; Seal, Robert R.
Gallegos, T.J., Walton-Day, K., and Seal, R.R., II, 2020, Conceptual framework and approach for conducting a geoenvironmental assessment of undiscovered uranium resources: U.S. Geological Survey Scientific Investigations Report 2018–5104, 28 p., https://doi.org/10.3133/sir20185104.

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Year Published: 2020

Evaluating the potential role of bioactive chemicals on the distribution of invasive Asian carp upstream and downstream from river mile 278 in the Illinois waterway

Two non-native carp species have invaded the Illinois Waterway and are a threat to Great Lakes ecosystems. Poor water quality in the upper Illinois Waterway, may be a factor contributing to the stalling of the carp population front near river mile 278. In 2015, the U.S. Geological Survey collected 4 sets of water samples from two sites upstream...

Battaglin, William A.; Duncker, James J.; Terrio, Paul J.; Bradley, Paul; Barber, Larry; DeCicco, Laura A.

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Year Published: 2020

Fluoride occurrence in United States groundwater

Data from 38,105 wells were used to characterize fluoride (F) occurrence in untreated United States (U.S.) groundwater. For domestic wells (n = 11,032), water from which is generally not purposely fluoridated or monitored for quality, 10.9% of the samples have F concentrations >0.7 mg/L (U.S. Public Health Service recommended optimal F...

McMahon, Peter B.; Brown, Craig J.; Johnson, Tyler D.; Belitz, Kenneth; Lindsey, Bruce D.