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Discover and download images and data visualizations that support the National and Regional Water Availability Assessments.
This model computes the amount of public supply withdrawals each month in 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in the lower 48 United States.
This model computes the amount of public supply withdrawals each month in 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in the lower 48 United States.
This map represents the total amount of water withdrawn in 2023 for aquaculture use estimated for all states in the lower 48 United States, Alaska, and Hawaii. States colored white did not disclose aquaculture water use (missing data).
This map represents the total amount of water withdrawn in 2023 for aquaculture use estimated for all states in the lower 48 United States, Alaska, and Hawaii. States colored white did not disclose aquaculture water use (missing data).
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).
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).
This model computes the amount of water withdrawn and consumed by thermoelectric power plants each month over the period from 2008 to 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in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
This model computes the amount of water withdrawn and consumed by thermoelectric power plants each month over the period from 2008 to 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in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
This model computes the amount of water withdrawn for public supply each month over the period from 2000 to 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in the conterminous United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).
This model computes the amount of water withdrawn for public supply each month over the period from 2000 to 2020 for all subwatersheds (12-digit Hydrologic Unit Codes or HUC12s) in the conterminous United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).
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.
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.
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.
3D render of Upper Colorado River Basin, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of Upper Colorado River Basin, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of the Delaware River Basin, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of the Delaware River Basin, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of the Illinois River Basin, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of the Illinois River Basin, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of Trinity-San Jacinto, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of Trinity-San Jacinto, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of Willamette River Basin, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
3D render of Willamette River Basin, created using TopoRivBlender. Read more about this method at https://waterdata.usgs.gov/blog/topo-riv-blender/
Map of the Upper Colorado River Basin —referred to as an Integrated Water Science (IWS) basins—are intensively monitored study basins representing a wide range of environmental, hydrologic, and landscape settings and human stressors of water resources to improve our understanding of water availability across the Nation.
Map of the Upper Colorado River Basin —referred to as an Integrated Water Science (IWS) basins—are intensively monitored study basins representing a wide range of environmental, hydrologic, and landscape settings and human stressors of water resources to improve our understanding of water availability across the Nation.
Water availability in the Klamath Basin is shaped by three interconnected factors, like overlapping circles in a Venn diagram. First, upper basin controls—such as groundwater, snowpack, and runoff—determine how much water is available. Second, biological opinions set flow requirements to protect endangered fish and habitats, including flushing and geomorphic flows.
Water availability in the Klamath Basin is shaped by three interconnected factors, like overlapping circles in a Venn diagram. First, upper basin controls—such as groundwater, snowpack, and runoff—determine how much water is available. Second, biological opinions set flow requirements to protect endangered fish and habitats, including flushing and geomorphic flows.
Hydrologic regions and aggregated hydrologic regions used in the National Water Availability Assessment report in the conterminous United States, Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands. Published in https://doi.org/10.3133/pp1894A
Hydrologic regions and aggregated hydrologic regions used in the National Water Availability Assessment report in the conterminous United States, Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands. Published in https://doi.org/10.3133/pp1894A
The U.S. Geological Survey uses a depiction and classification scheme for hydrologic units known as hydrologic unit codes (HUCs). HUCs generally represent catchments, and river basins are represented by a unique series of numbers with successively smaller hydrologic units nested inside of larger ones.
The U.S. Geological Survey uses a depiction and classification scheme for hydrologic units known as hydrologic unit codes (HUCs). HUCs generally represent catchments, and river basins are represented by a unique series of numbers with successively smaller hydrologic units nested inside of larger ones.
A simplified drinking water aquifer map of CONUS. Overlapping aquifers are indicated with striping.
A simplified drinking water aquifer map of CONUS. Overlapping aquifers are indicated with striping.
Managed aquifer-recharge methods and processes. Managed recharge—which uses water of dissimilar geochemistry from groundwater through infiltration into shallow aquifers or injection into deep aquifers—can alter hydrologic and geochemical aquifer conditions such that arsenic and other geogenic contaminants are mobilized from sediment to aqueous phase.
Managed aquifer-recharge methods and processes. Managed recharge—which uses water of dissimilar geochemistry from groundwater through infiltration into shallow aquifers or injection into deep aquifers—can alter hydrologic and geochemical aquifer conditions such that arsenic and other geogenic contaminants are mobilized from sediment to aqueous phase.
Total water use for the top 3 water use categories: thermoelectric power generation, public supply, and crop irrigation. These three categories make up 90% of all water use in the contiguous United States.
Total water use for the top 3 water use categories: thermoelectric power generation, public supply, and crop irrigation. These three categories make up 90% of all water use in the contiguous United States.
Not all water withdrawals are returned to the local environment. Some water is lost because it is evaporated, transpired, incorporated into products or crops, or otherwise made unavailable for immediate use.
Not all water withdrawals are returned to the local environment. Some water is lost because it is evaporated, transpired, incorporated into products or crops, or otherwise made unavailable for immediate use.
Around 90% of daily water use in the lower 48 United States goes toward crop irrigation, thermoelectric power plants, where freshwater is used in the process of creating energy, and public supply, where water is withdrawn or purchased by a water supplier and delivered to many users. These three uses add up to 224,000 million gallons of freshwater per day.
Around 90% of daily water use in the lower 48 United States goes toward crop irrigation, thermoelectric power plants, where freshwater is used in the process of creating energy, and public supply, where water is withdrawn or purchased by a water supplier and delivered to many users. These three uses add up to 224,000 million gallons of freshwater per day.