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Discover and download images, data visualizations, and videos that support the National and Regional Water Availability Assessments.

Images

Public Supply Water Use map, monthly averages 2009-2020 by watershed
Public Supply Water Use map, monthly averages 2009-2020 by watershed
Public Supply Water Use map, monthly averages 2009-2020 by watershed
Public Supply Water Use map, monthly averages 2009-2020 by watershed

This model computes the amount of water withdrawn for public supply each month over the period from 2000 to 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in the conterminous United States (CONUS).

Map of the lower 48 U.S showing thermoelectric water use by watershed
Thermoelectric Power Water Use map, monthly averages 2009-2020 by watershed
Thermoelectric Power Water Use map, monthly averages 2009-2020 by watershed
Thermoelectric Power Water Use map, monthly averages 2009-2020 by watershed

This model computes the amount of water withdrawn and consumed by thermoelectric power plants each month over the period from 2008 to 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in the conterminous United Sta

Irrigation Use map, monthly averages 2009-2020 by watershed
Irrigation Water Use map, monthly averages 2009-2020 by watershed
Irrigation Water Use map, monthly averages 2009-2020 by watershed
Irrigation Water Use map, monthly averages 2009-2020 by watershed

This model computes the amount of crop irrigation withdrawals each month over the period from 2000 to 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in the conterminous United States (CONUS).

Images that represent downloading integrated water data
National Water Availability Assessment Data Companion capabilities
National Water Availability Assessment Data Companion capabilities
National Water Availability Assessment Data Companion capabilities

Images representing three of the services available to users of the National Water Availability Assessments (NWAA) Data Companion. Services include subset and download tool, data file directory, and web services. 

Surface water supply and use index, as a fraction, across the United States
Surface water supply and use index from National Water Availability Assessment Data Companion
Surface water supply and use index from National Water Availability Assessment Data Companion
Surface water supply and use index from National Water Availability Assessment Data Companion

The surface water supply and use index (SUI) expresses the fraction of the median long-term water supply at a HUC12 that is unavailable either because of climatic variability (e.g. an unusually dry year) or because the water is used consumptively for crop irrigation, thermoelectric power, or public supply.

The surface water supply and use index (SUI) expresses the fraction of the median long-term water supply at a HUC12 that is unavailable either because of climatic variability (e.g. an unusually dry year) or because the water is used consumptively for crop irrigation, thermoelectric power, or public supply.

Videos

National water availability assessment data companion webinar opening slide National water availability assessment data companion webinar opening slide
New Modeled Water Data: Data Companion Release January 2026
New Modeled Water Data: Data Companion Release January 2026

This recorded webinar demonstrates how to access and use new modeled water data delivered through the National Water Availability Assessment Data Companion (NWDC). The NWDC is a centralized website providing USGS model-derived water availability, supply, and use information that underlies the National Water Availability Assessment Report.

This recorded webinar demonstrates how to access and use new modeled water data delivered through the National Water Availability Assessment Data Companion (NWDC). The NWDC is a centralized website providing USGS model-derived water availability, supply, and use information that underlies the National Water Availability Assessment Report.

Thumbnail for the National Water Availability Assessment Release Thumbnail for the National Water Availability Assessment Release
National Water Availability Assessment Release
National Water Availability Assessment Release

This recorded webinar details the significance and finding of the National Water Availability Assessment Release. 

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