26 datasets found
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Federal
Per- and polyfluoroalkyl substances (PFAS) results in tapwater samples, in select areas within the United States, beginning 2023 (ver. 2.0, June 2025)
Department of the Interior —
This data release provides concentration results for per- and polyfluoroalkyl substances (PFAS) collected by volunteer community members, in tapwater samples from 84... -
Federal
Environmental Sampling and Modeling Results to Characterize Surface-Water Quality at 32 Sites Across the Potomac River Watershed, 2022 (ver. 3.0, April 2025)
Department of the Interior —
This data release presents chemical results from investigations of surface-water quality in the Potomac River watershed (encompassing Washington, D.C. and parts of... -
Topography Hydro Breaklines
District of Columbia —
The dataset contains hydro-breaklines that were collected in 2D as vector line work, using a combination of classified lidar dataset, intensity images, shaded relief... -
LiDAR - Normalized Digital Surface Model - Tiles
District of Columbia —
Normalizd Digital Surface Model - 1m resolution. The dataset contains the 1m Digital Surface Model for the District of Columbia.Some areas have limited data. The lidar... -
Federal
Surficial Geology for the Mid-Atlantic Coastal Plain.
Department of the Interior —
Surficial geology for the Mid-Atlantic Coastal Plain was compiled and interpreted from available published and unpublished sources. Formation contacts were... -
Federal
Data for the Potomac River Watershed Accumulated Wastewater Viewer
Department of the Interior —
This data release contains measured streamflow data from U.S. Geological Survey (USGS) streamgages and reported wastewater data from wastewater treatment plants... -
Federal
Groundwater Site Identification Indexes for Washington D.C., Baltimore City, and the Counties of Maryland
Department of the Interior —
These data sets represent 23 geographic 5-minute indexes for the counties of Maryland, one 2 1/2-minute index for Washington D.C., and 1-mile square index for... -
Topography Hydro Breaklines - 2018
District of Columbia —
The dataset contains hydro-breaklines that were collected in 2D as vector line work, using a combination of classified lidar dataset, intensity images, shaded relief... -
Federal
FishTail, Indices and Supporting Data Characterizing the Current and Future Risk to Fish Habitat Degradation in the Northeast Climate Science Center Region
Department of the Interior —
Human impacts occurring throughout the Northeast United StatesDOI Northeast Climate Science Center, including urbanization, agriculture, and dams, have multiple... -
Our Diverse Canopy
District of Columbia —
The District of Columbia is home to a very diverse tree canopy, but it is not self-sustaining. In order to promote overall canopy health, ensure tree diversity, and... -
Federal
Chesapeake Stream Team Field Sites, 2021-2024
Department of the Interior —
Each year from 2021 to 2024, teams from the U.S. Geological Survey and the Virginia Polytechnic Institute and State University (Virginia Tech) studied 30 streams with... -
Federal
White House Tract and Boundary Data
Department of the Interior —
These ESRI shape files are of National Park Service tract and boundary data that was created by the Land Resources Division. Tracts are numbered and created by the... -
Federal
Washington Monument Tract and Boundary Data
Department of the Interior —
These ESRI shape files are of National Park Service tract and boundary data that was created by the Land Resources Division. Tracts are numbered and created by the... -
Federal
Thomas Jefferson Memorial Tract and Boundary Data
Department of the Interior —
These ESRI shape files are of National Park Service tract and boundary data that was created by the Land Resources Division. Tracts are numbered and created by the... -
Federal
Fish communities in streams of the Maryland-Washington, DC-Virginia developed Piedmont, 2024
Department of the Interior —
From May 27 to June 21, 2024, a Virginia Tech team of 5 sampled the fish community in 30 streams spanning a gradient of the developed landscape, including Potomac... -
Federal
Tracking disturbance and inundation to identify wetland loss
Department of the Interior —
Global trends in wetland degradation and loss have created an urgency to monitor wetland extent, as well as track the distribution and causes of wetland loss.... -
Federal
fishtail_catch:Indices and supporting data characterizing the current and future risk to fish habitat degradation in the Northeast Climate Science Center region
Department of the Interior —
This dataset represents results from this study attributed to the NHDPlus catchments. Human impacts occurring throughout the Northeast United StatesDOI Northeast... -
Federal
Discharge and sediment data for selected tributaries to the Anacostia River, Washington, District of Columbia, 2003-18
Department of the Interior —
Data release consists of five comma delimited text files containing discharge and sediment data for five gaged tributaries to the Anacostia River in Washington,... -
Federal
fishtail_catch:Indices and supporting data characterizing the current and future risk to fish habitat degradation in the Northeast Climate Science Center region
Department of the Interior —
This dataset represents results from this study attributed to the NHDPlus stream reach segments. Human impacts occurring throughout the Northeast United StatesDOI... -
Federal
Palmer Hydrological Drought Index (PHDI) values for selected Chesapeake Bay watersheds
Department of the Interior —
This dataset contains values of the Palmer Hydrological Drought Index (PHDI) for annual and seasonal periods from 1985-2012. Values are derived from data based on...
26 datasets found