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) |
|---|---|---|---|---|
| 8/5/2025 | New data | Outdoor recreational area (per capita) within walking distance (m2/person) | This map estimates the per capita amount of public outdoor recreational space (e.g., urban parks, national forests) within 800m along walkable routes (approx. ½-mile or 10-minute walk). Positive values represent the square meters of walkable recreational space available per person within that area. Values of zero represent areas within walking distance of a recreational area but have no population. No data values represent areas beyond walking distance of an outdoor recreational area. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_462 |
| 8/5/2025 | Updated data | Percent agriculture on hydric soils | This map depicts the percentage of land managed for agriculture that has hydric soils within each subwatershed (12-digit HUC) for 2020-2021. This includes all land dedicated to the production of crops, but excludes land managed for pasture. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_192 |
| 05/2025 | New Data | NEX-GDDP SSP5-8.5 for AK, HI, PR, VI, AS, GU & MP | Future change in temperature, evapotranspiration, and precipitation by 12-digit HUC for Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and the Commonwealth of the Northern Mariana Islands - NEX-GDDP-CMIP6 SSP5-8.5 scenario. This data can be viewed in the Time Series Layers tool in the web mapping application. | https://epa.maps.arcgis.com/home/item.html?id=6a1a24dc7f7d402fa15bae70d146d312 |
| 05/2025 | New Data | NEX-GDDP SSP3-7.0 for AK, HI, PR, VI, AS, GU & MP | Future change in temperature, evapotranspiration, and precipitation by 12-digit HUC for Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and the Commonwealth of the Northern Mariana Islands - NEX-GDDP-CMIP6 SSP3-7.0 scenario. This data can be viewed in the Time Series Layers tool in the web mapping application. | https://epa.maps.arcgis.com/home/item.html?id=c2275d005d664f3f9cd090343ce9efe3 |
| 05/2025 | New Data | NEX-GDDP SSP2-4.5 for AK, HI, PR, VI, AS, GU & MP | Future change in temperature, evapotranspiration, and precipitation by 12-digit HUC for Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and the Commonwealth of the Northern Mariana Islands - NEX-GDDP-CMIP6 SSP2-4.5 scenario. This data can be viewed in the Time Series Layers tool in the web mapping application. | https://epa.maps.arcgis.com/home/item.html?id=c1e704a9888b4faeabe53e26c0326f5a |
| 05/2025 | New Data | NEX-GDDP SSP1-2.6 for AK, HI, PR, VI, AS, GU & MP | Future change in temperature, evapotranspiration, and precipitation by 12-digit HUC for Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and the Commonwealth of the Northern Mariana Islands - NEX-GDDP-CMIP6 SSP1-2.6 scenario. This data can be viewed in the Time Series Layers tool in the web mapping application. | https://epa.maps.arcgis.com/home/item.html?id=08ccf4766b8d4de3a3166cf0ed8f3c68 |
| 05/2025 | Updated Functionality | Climate Scenarios: Outside of Contiguous U.S. (OCONUS) | The Time Series Layers tool in the web mapping application now includes data for Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam, and the Northern Mariana Islands. | |
| 06/2025 | New Tool | EPA EnviroAtlas Hub Site | This is a geospatial data hub that allows users to browse and download EnviroAtlas data. | https://enviroatlas-epa.hub.arcgis.com/ |
| 01/2025 | New Data | Potential wetland area | This map depicts land that may be suitable to support a wetland habitat for 2016-2021. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_449 |
| 01/2025 | New Data | Potential wetland area on cropland | This map depicts land that may be suitable to support a wetland habitat but was cropland in 2019. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_450 |
| 01/2025 | New Data | Percent potential wetland areas | This map estimates the percent of land within each subwatershed (12-digit HUC) that may be suitable to support a wetland habitat for 2016-2021. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_451 |
| 01/2025 | New Data | Percent potential wetland areas on cropland | This map estimates the percent of land within each subwatershed (12-digit HUC) that may be suitable to support a wetland habitat but was cropland in 2019. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_452 |
| 06/2025 | Updated Data | Waterscape - Hydrologically connected zone | Replaced old layer with newer version based on 2019 data. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_911 |
| 06/2025 | Updated Data | Waterscape - Surface water | Replaced old layer with newer version based on 2019 data. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_910 |
| 06/2025 | Updated Data | Waterscape - Riparian zone | Replaced old layer with newer version based on 2019 data. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_912 |
| 07/2025 | New Data | Soil loss (tonnes per hectare) [grid] - Avoided due to natural vegetation | This map depicts the average annual soil loss in metric tonnes per hectare that was avoided due to natural vegetation under 2011 land use/land cover. This is a 30-meter grid version of a layer that was previously only provided summarized by 12-digit HUC. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_457 |
| 07/2025 | New Data | Sediment yield (tonnes per hectare) [grid] - Avoided due to natural vegetation | This map depicts the average annual sediment yield to the nearest waterbody in metric tonnes per hectare that was avoided due to natural vegetation under 2011 land use/land cover. This is a 30-meter grid version of a layer that was previously only provided summarized by 12-digit HUC. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_458 |
| 07/2025 | New Data | Sediment Delivery Ratio - Land cover (2011) | This map depicts the average sediment delivery ratio per pixel under 2011 land use/land cover. The sediment delivery ratio is the percentage of soil eroding from a pixel that is transported to a downstream water body; it is based on the average for each 12-digit HUC. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_459 |
| 07/2025 | New Data | Sediment Delivery Ratio - Natural vegetation removed | This map depicts the average sediment delivery ratio per pixel under a 2011 land use/land cover scenario in which natural vegetation has been replaced with barren land. The sediment delivery ratio is the percentage of soil eroding from a pixel that is transported to a downstream water body; it is based on the average for each 12-digit HUC. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_460 |
| 07/2025 | New Data | Near-surface permafrost probability | This map estimates the probability of near-surface permafrost (within 1 meter) for 2001-2010 for Alaska. | https://enviroatlas.epa.gov/enviroatlas/interactivemap/?eaLayer=eaLyrNum_461&extent=-20057825.22718743,6357151.088297372,-9970583.47845197,12110107.585151349,102100 |
| 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 |