No matter the season, we are out monitoring Colorado waters.
In winter...
No matter the season, we are out monitoring Colorado waters.
In spring...
No matter the season, we are out monitoring Colorado waters.
In summer...
No matter the season, we are out monitoring Colorado waters.
and in the fall.
Colorado Water Science Center
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.
Science Highlight

Next Generation Water Observing System: Upper Colorado River Basin
The Next Generation Water Observing System provides high-fidelity, real-time data on water quantity, quality, and use to support modern water prediction and decision-support systems that are necessary for informing water operations on a daily basis and decision-making during water emergencies.
News
Publications
Contaminant exposure and transport from three potential reuse waters within a single watershed
Quality of groundwater used for public supply in the continental United States: A comprehensive assessment
The presence of contaminants in a source water can constrain its suitability for drinking. The quality of groundwater used for public supply was assessed in 25 principal aquifers (PAs) that account for 84% of groundwater pumped for public supply in the U.S. (89.6 million people on a proportional basis). Each PA was sampled across its lateral extent using an equal-area grid, typically with 60 wells