From the Coeur d'Alene River basin in the panhandle to the Idaho National Laboratory in the southeast, we work with Federal, state, local, tribal, and private sector partners to monitor and study the quality of Idaho's water resources.
We also provide real-time water-quality data from monitoring sites throughout Idaho.
Our monthly Idaho Hydrologic Update helps you stay informed about Idaho's water resources. Each month, we summarize significant findings from our hydrologic data networks; announce new studies; and let you know how we support our local, state, Federal, and tribal partners with reliable, unbiased science.
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More than two dozen Idaho streamgages offer more than 100 years of water data. Click the Centennial Streamgage badge below to access data from these streamgages.
Elevated concentrations of mercury and methylmercury have been found in the water, sediments, and fish of the Snake River as it flows through the three-reservoir Hells Canyon Complex along the Idaho-Oregon border. Scientists from the USGS and Idaho Power Company are intensively studying the processes of mercury cycling in the Hells Canyon Complex to inform decision-making about reservoir operations.
USGS and Idaho Department of Water Resources hydrologists collaboratively developed a new groundwater-flow model for the Wood River Valley aquifer system. With the model, resource managers can simulate how increased or decreased pumping from the aquifer system or changes in precipitation and climate would affect groundwater levels and area streams.