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Geospatial data, such as remote sensing images and map based information, provide an opportunity to evaluate hydrologic systems with a spatially continuous data set.
WaterWatch is a U.S. Geological Survey (USGS) World Wide Web site that displays maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States.
StreamStats is a Web-based geographic information system (GIS) application created by the USGS to provide users with access to an assortment of data and analytical tools. StreamStats provides streamflow and basin characteristics for USGS sites.
How do we use water in the U.S.?
We all depend on water every day, ranging from the water from our faucets, to the food we eat, to much of the electricity we use. The U.S. and its territories used nearly 322 billion gallons of water per day in 2015. This would cover the continental U.S. in about two inches of water over the course of a year. The national breakdown of water withdrawals looks like this:
National water-use data are reported by source (surface water or groundwater, fresh and saline, and total), and category for the United States as a whole. The water-use data presented here are the current best estimates, and may have been revised from previous publications.
Streamflow and water-quality samples collected during 2018 and 2019
How much water do we use?In the map below, State size (area) is scaled proportionally to State freshwater use.
The purpose of the crest-stage gage network is to inventory and monitor peak discharges throughout the state of Montana, with special emphasis on streams that may damage transportation infrastructure. Recorded data documenting peak streamflow at various sites within the state will be used by the Montana Department of Transportation to support assessments of culvert size, bridge construction, and
Streams throughout the country are routinely sampled for their water quality. Water-quality data are available for active sites and historical sites from the USGS National Water Information System Web Interface (NWISWeb). NWISWeb has discrete water-quality sample data as well as continuous water-quality data.
Mining in the upper Clark Fork Basin has resulted in substantial effects on water quality from large amounts of waste materials enriched with metallic contaminants. The U.S. Geological Survey has collected data since 1985 to document changes in water quality that might have resulted from remediation activities.
Four wells in the WLCI area are continuously monitored to help describe the interaction between the groundwater and surface water.