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NHD Major Rivers, Major Rivers and Creeks, Major Lakes and Reservoirs
The USGS National Hydrography Dataset (NHD) Downloadable Data Collection from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information... -
California Lakes
NOTE: In 2013, the California Department of Fish and Game (CDFG, DFG) was renamed to California Department of Fish and Widlife (CDFW). This dataset is an update of California... -
Freshwater CTD data
Profiles of temperature, conductivity, salinity, dissolved oxygen, chlorophyll fluorescence, beam transmission, and surface and subsurface PAR collected monthly to twice monthly... -
Historical - ccgisdata - Lakes and Rivers 2015
The Lakes and Rivers hydrographic polygon data layer was created to accurately depict the location and shape of flowing water features greater than five feet in width and major... -
California Lakes
NOTE: In 2013, the California Department of Fish and Game (CDFG, DFG) was renamed to California Department of Fish and Widlife (CDFW). This dataset is an update of California... -
Ice Ladders
This dataset contains GPS coordinates for each ice ladder NYC Parks places around lakes and ponds. These ladders are intended for rescuing anyone who falls through the ice of a... -
Impaired Lakes 2010
Under Section 303(d) of the Clean Water Act, states are required from "time to time" to submit a list of waters for which effluent limits will not be sufficient to meet all... -
Fish Stocking Lists (Actual): Beginning 2011
DEC stocks approximately 900,000 pounds of fish into more than 1,200 public streams, rivers, lakes and ponds across the state. Also included in the data are public stockings by... -
Impaired Lakes 2014
This dataset represents the centroids of lakes, reservoirs, and wetlands that were listed as "impaired" in Iowa's 2014 Section 305(b) Water Quality Assessment and the 303(d)... -
Harmful Algal Bloom Statewide Occurrence Summary: 2012-2018
A summary of the maximum bloom status that was documented by the DEC HABs Program in each waterbody in each year from 2012-2018. Continuing data available at... -
Environmental Monitoring and Assessment Program (EMAP)
The Environmental Monitoring and Assessment Program (EMAP) was a national research program run by EPA’s Office of Research and Development from 1990 to 2008 to develop the tools... -
Lakes
Feature layer containing authoritative lake polygons for Sioux Falls, South Dakota. -
Impaired Lakes 2012
This dataset represents the centroids of lakes, reservoirs, and wetlands that were listed as "impaired" in Iowa's 2012 Section 305(b) Water Quality Assessment and the 303(d)... -
California Lakes
NOTE: In 2013, the California Department of Fish and Game (CDFG, DFG) was renamed to California Department of Fish and Widlife (CDFW). This dataset is an update of California... -
California Lakes
NOTE: In 2013, the California Department of Fish and Game (CDFG, DFG) was renamed to California Department of Fish and Widlife (CDFW). This dataset is an update of California... -
California Lakes
NOTE: In 2013, the California Department of Fish and Game (CDFG, DFG) was renamed to California Department of Fish and Widlife (CDFW). This dataset is an update of California... -
Lakes and Rivers
Polygon layer delineating the area covered by major lakes within Travis County Texas. -
California Lakes
NOTE: In 2013, the California Department of Fish and Game (CDFG, DFG) was renamed to California Department of Fish and Widlife (CDFW). This dataset is an update of California... -
National Hydrography Dataset (NHD)
The USGS National Hydrography Dataset (NHD) Downloadable Data Collection from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information... -
Strategic Measure_Number and percentage of creeks and lakes in good or...
Strategic Direction 2023 (SD23) Measure HE.D.3 reports the number and percentage of creeks and lakes in good or excellent health. This measure is calculated every two years...