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Recent Updates/Changes to EnviroAtlas

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Beginning 2023, this list of changes includes, but is not limited to, new features, new data, and latest updates. 

Date Type Title Description Link (if available)
09/2023 Updated Functionality Ecological Integrity of Stream Confluence Catchments and Watersheds Pop-ups have been added to this layer providing additional information that was not previously available. https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_411
02/2025 Updated Functionality Groundwater recharge (m/yr) Metadata link has been fixed and is now accessible. https://catalog.data.gov/dataset/enviroatlas-water-balance-and-surficial-groundwater-by-12-digit-huc-for-the-conterminous-united4
02/2025 Updated Functionality Total Evapotranspiration (m/yr) Metadata link has been fixed and is now accessible. https://catalog.data.gov/dataset/enviroatlas-water-balance-and-surficial-groundwater-by-12-digit-huc-for-the-conterminous-united4
02/2025 Updated Functionality Surface runoff - (Quick flow ) (m/yr) Metadata link has been fixed and is now accessible. https://catalog.data.gov/dataset/enviroatlas-water-balance-and-surficial-groundwater-by-12-digit-huc-for-the-conterminous-united4
02/2025 Updated Functionality Simulated depth to water table (m) Metadata link has been fixed and is now accessible. https://catalog.data.gov/dataset/enviroatlas-water-balance-and-surficial-groundwater-by-12-digit-huc-for-the-conterminous-united4
02/2025 Updated Functionality Unsaturated zone water transit time (yrs) Metadata link has been fixed and is now accessible. https://catalog.data.gov/dataset/enviroatlas-water-balance-and-surficial-groundwater-by-12-digit-huc-for-the-conterminous-united4
03/2024 Updated Data Soil loss (tonnes) [12-digit HUC] Rasters updated and available for download. https://www.epa.gov/enviroatlas/data-download?token=AWnmRqVp5h0FXkZk9hZAFXBrCXRA4AaQMdatj6WbhBw
03/2024 Updated Data Sediment yield (tonnes) [12-digit HUC] Rasters updated and available for download. https://www.epa.gov/enviroatlas/data-download?token=AWnmRqVp5h0FXkZk9hZAFXBrCXRA4AaQMdatj6WbhBw
03/2024 Updated Data Soil loss (tonnes) [grid] Rasters updated and available for download. https://www.epa.gov/enviroatlas/data-download?token=AWnmRqVp5h0FXkZk9hZAFXBrCXRA4AaQMdatj6WbhBw
03/2024 Updated Data Sediment yield (tonnes) [grid] Rasters updated and available for download. https://www.epa.gov/enviroatlas/data-download?token=AWnmRqVp5h0FXkZk9hZAFXBrCXRA4AaQMdatj6WbhBw
07/2023 New Data San Diego, CA high- resolution data Fine-scale 1-meter resolution data and map layers added for a new urbanized community area. https://www.epa.gov/enviroatlas/data-download?token=AWnmRqVp5h0FXkZk9hZAFXBrCXRA4AaQMdatj6WbhBw
07/2023 New Data Tacoma, WA high-resolution data Fine-scale 1-meter resolution data and map layers added for a new urbanized community area.  
10/2022 New Data Watershed Resources Registries (WRRs) Featured Collection

This map collection will help environmental professionals and water resource stakeholders explore nationally available data on landcover, water and soil, agriculture, wetland presence, species diversity, and potential project opportunity areas related to WRRs.

https://enviroatlas.epa.gov/enviroatlas/interactivemap/?featuredcollection=60355909a1eb4ccb90ea88118b10b4a7
08/2024 Updated Functionality Individual Data Downloads

The ability to download individual datasets has been temporarily disabled as we enhance the data download feature. After the upgrade, users will be able to download individual datasets and spatial data subsets with improved functionality.

 
08/2023 Updated Functionality Decommissioning ECAT ECAT is currently unavailable due to an incompatibility introduced by a recent necessary software update. Our team is actively exploring options to replace this functionality.  
06/2023 New Data Animal Feeding Operations (AFOs) data  Summarizes numbers of animals and Animal Feeding Operations (AFOs) by type and county https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_414
10/2023 Updated Data Assessed and Impaired Water Areas Combines impaired and assessed waters and allows user to specify the type of geography they would like to display https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_447
01/2023 New Tool Summarize My Area Tool The tool, denoted as the sigma symbol, allows users to calculate landscape characteristic metrics for any area of interest using current or historic land cover or land cover change statistics https://enviroatlas.epa.gov/enviroatlas/interactivemap/
10/2023 New Data Stream Confluence Catchments and Watershed National dataset which classifies a waterbody's ability to function on a scale of "poor" to "good" https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_411
07/2023 Updated Toolbox

Dasymetric Toolbox

Allows users to more accurately distribute population data that has been assigned to arbitrary boundaries, such as census blocks https://www.epa.gov/enviroatlas/dasymetric-toolbox
07/2023 Updated Data Dasymetric Allocation of Population Data recalculated for 2010 and new data added for 2020. Improved analyses allow a more accurate representation of population density. https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_714
05/2023 Updated Toolbox

Analytical Tools Interface for Landscape Assessments (ATtILA)

New tools and functionality were added and allows users to calculate many of the EnviroAtlas metrics faster and reduce the chance of errors https://www.epa.gov/enviroatlas/attila-toolbox
05/2023 Updated Data Nitrate violation index - Groundwater Data added for missing 12-digit HUCs https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_403
05/2023 Updated Data Nitrate violation index - Surface water Data added for missing 12-digit HUCs https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_404
03/2023 New Data Total Evapotranspiration (m/yr) Estimates the average annual evapotranspiration rate in meters/year across each subwatershed (12-digit HUC) for 2000-2013 https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_437
03/2023 New Data Surface runoff - (Quick flow ) (m/yr) Estimates the average quick-flow surface runoff from precipitation in meters per year across each subwatershed (12-digit HUC) for 2000-2013 https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_438
03/2023 New Data Simulated depth to water table (m) Estimates the average depth to the water table in meters across each subwatershed (12-digit HUC). The map reflects simulated natural conditions without withdrawals. https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_439
03/2023 New Data Unsaturated zone water transit time (yrs) This map estimates the average travel time of a solute in water across the unsaturated zone (the area between the surface and the water table) in years by subwatershed (12-digit HUC); this represents the time it takes for a solute to travel from the land surface to the water table. https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_440

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Last updated on March 26, 2025
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