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Federal
USGS Water-Quality Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the... -
Federal
Great Lakes Environmental Database (GLENDA)
U.S. Environmental Protection Agency —
The Great Lakes Environmental Database (GLENDA) houses environmental data collected by EPA Great Lakes National Program Office (GLNPO) programs that sample water,... -
Federal
USGS Water Use Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The U.S. Geological Survey's National Water-Use Information Program is responsible for compiling and disseminating the nation's water-use data. The USGS works in... -
Federal
USGS Surface-Water Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the... -
Federal
USGS Groundwater Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the... -
Federal
Drainage Basins Used for Assessing Trends in Concentration of Pesticides in Streams of the United States, 1992-2010
Department of the Interior —
This dataset consists of drainage basin boundaries for 212 U.S. Geological Survey (USGS) stream sites sampled in the National Water-Quality Assessment (NAWQA)... -
Federal
Tillage Practices in the Conterminous United States, 1989-2004--Datasets Aggregated by Watershed; tillage_lu92e
Department of the Interior —
This dataset is an aggregation of county-level tillage practices to the 8-digit hydrologic unit watershed. The original county-level data were collected by the... -
Federal
Cyanobacteria Index (MERIS)
U.S. Environmental Protection Agency —
This dataset shows the concentration of cyanobacteria cells/ml in fresh water bodies and estuaries of the Ohio and Florida derived from 300x300 meter MEdium... -
Federal
National Wild and Scenic River Lines (Feature Layer)
Department of Agriculture —
This polyline feature class depicts the river corridors of each Wild and Scenic River designated by Congress or the Secretary of the Interior for the United States... -
County
Allegheny County Hydrology Areas
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
The Hydrology Feature Dataset contains photogrammetrically compiled water drainage features and structures including rivers, streams, drainage canals, locks, dams,... -
Federal
Hydrographic and Impairment Statistics Database: GRTE
Department of the Interior —
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in... -
Federal
Wetlands Inventory and Mapping in Great Smoky Mountains National Park
Department of the Interior —
This database includes all data related to the on-going wetlands inventory project performed by GRSM Inventory and Monitoring (I&M) staff and cooperators from... -
Federal
Hydrographic and Impairment Statistics Database: NPS-WSR Alatna Wild and Scenic River
Department of the Interior —
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in... -
Federal
Wetland Polygons, Great Smoky Mountains National Park
Department of the Interior —
This data set contains current extent, location, and attribute data for wetland and deep-water habitat delineations in the Great Smoky Mountains National Park.... -
Federal
National Wild and Scenic Rivers (Feature Layer)
Department of Agriculture —
A depiction of areas designated as Wild and Scenic Rivers. Metadata -
State
i12 Canals and Aqueducts local
State of California —
Dataset represents centerlines of major water project canals that are managed by local area government agencies or entities. This dataset does not contain major State... -
Federal
Hydrographic and Impairment Statistics Database: ELMO
Department of the Interior —
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in... -
Federal
Hydrographic and Impairment Statistics Database: WHSA
Department of the Interior —
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in... -
Federal
Hydrographic and Impairment Statistics Database: SEQU
Department of the Interior —
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in... -
Floodplain Cross Sections
District of Columbia —
Location and attributes for cross section lines in the area covered by the FIRM. This layer must contain all cross sections in a model, not just the lettered cross...