22 datasets found
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Federal
National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection NGDA 84 recent views
Department of the Interior —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
Federal
EPA Office of Water (OW): 303(d) Listed Impaired Waters NHDPlus Indexed Dataset 22 recent views
U.S. Environmental Protection Agency —
The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated... -
Federal
National Hydrography Dataset Plus - NHDPlus 12 recent views
U.S. Environmental Protection Agency —
This high-level metadata data document will be supplemented with detailed regional metadata at a later date. The NHDPlusV2 is an integrated suite of application-ready... -
Federal
EPA Office of Water (OW): 305(b) Waters As Assessed by Assessed Uses
U.S. Environmental Protection Agency —
Under Section 305(b) of the CWA, the states, territories, and other jurisdictions of the United States are required to submit reports on the quality of their waters... -
Federal
EPA Office of Water (OW): 303(d) Listed Impaired Waters by Causes of Impairment and Probable Sources
U.S. Environmental Protection Agency —
Under Section 303(d) of the CWA, states, territories, and authorized tribes (referred to here as states) are required to develop lists of impaired waters. These are... -
Federal
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1
Department of the Interior —
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United... -
Federal
EPA Office of Water (OW): 305(b) Assessed Waters NHDPlus Indexed Dataset
U.S. Environmental Protection Agency —
The 305(b) program system provide assessed water data and assessed water features for river segments, lakes, and estuaries designated under Section 305(b) of the... -
Federal
EPA Office of Water (OW): Fish Consumption Advisories and Fish Tissue Sampling Stations NHDPlus Indexed Datasets
U.S. Environmental Protection Agency —
The Fish Consumption Advisories dataset contains information on Fish Advisory events that have been indexed to the EPA Office of Water NHDPlus v2.1 hydrology and... -
State
Low Water Line
State of California —
This data was created to depict portions of state-owned Sovereign Lands that are under the jurisdiction of the California State Lands Commission. Data coverage is... -
State
Low Water Line
State of California —
This data was created to depict portions of state-owned Sovereign Lands that are under the jurisdiction of the California State Lands Commission. Data coverage is... -
State
High Water Line
State of California —
This data was created to depict portions of state-owned Sovereign Lands that are under the jurisdiction of the California State Lands Commission. Data coverage is... -
Federal
National Hydrography Dataset Plus High Resolution (NHDPlus HR) - USGS National Map Downloadable Data Collection
Department of the Interior —
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography... -
Federal
BLM Natl AIM Lotic Indicators Hub
Department of the Interior —
This feature class includes monitoring data collected nationally to understand the status, condition, and trend of resources on BLM lands. Data are collected in... -
Federal
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1WS
Department of the Interior —
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United... -
State
Administrative Maps Viewer
State of California —
This data was created to depict portions of state-owned Sovereign Lands that are under the jurisdiction of the California State Lands Commission. Data coverage is... -
State
Sheet Footprint
State of California —
This data was created to depict portions of state-owned Sovereign Lands that are under the jurisdiction of the California State Lands Commission. Data coverage is... -
Federal
EPA Office of Water (OW): 2002 Impaired Waters Baseline NHDPlus Indexed Dataset
U.S. Environmental Protection Agency —
This dataset consists of geospatial and attribute data identifying the spatial extent of state-reported impaired waters (EPA's Integrated Reporting categories 4a, 4b,... -
Federal
Puerto Rico ESI and RSI: ESI (Environmental Sensitivity Index Shoreline Types) / RSI (Reach Sensitivity Index River and Stream Types)
National Oceanic and Atmospheric Administration, Department of Commerce —
This data set comprises the Environmental Sensitivity Index (ESI) and Reach Sensitivity Index (RSI) data for Puerto Rico. ESI data characterize estuarine environments... -
Federal
EPA Office of Water (OW): Impaired Waters with TMDLs by Causes of Impairment and Probable Sources and TMDL Pollutant
U.S. Environmental Protection Agency —
Under Section 303(d) of the Clean Water Act (CWA), states, territories, and authorized tribes, collectively referred to in the Act and here as "states," are required...
22 datasets found
