-
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
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
MDDNR, Station Gooses - Surface
National Oceanic and Atmospheric Administration, Department of Commerce —
At continuous monitoring sites throughout Maryland, water quality is monitored at shallow water sites located in Chesapeake Bay, Chesapeake Bay tributaries and... -
Federal
Environmental Resource Monitoring Locations within the Vicinity of Coal Mining Operations
Department of the Interior —
As described by ASTM D7780-12: This feature class contains points that depict the location of environmental resource monitoring locations (ERMLs), including... -
Federal
CeNCOOS in situ water monitoring data at Trinidad Head, California - sea_water_ph_reported_on_total_scale
National Oceanic and Atmospheric Administration, Department of Commerce —
The Trinidad shore station is maintained by Humboldt State University. The station has been operational since 2012 and consists of subsurface sensors mounted rigidly... -
Federal
CeNCOOS in situ water monitoring data at Romberg Tiburon Center Pier
National Oceanic and Atmospheric Administration, Department of Commerce —
The Tiburon shore station is maintained by San Francisco State University. The station has been operational since 2002 and consists of both in-water and... -
Federal
Dissolved inorganic carbon, total alkalinity, sensor pH, pCO2, rhodamine concentration, nutrients, and other variables obtained from a tracer study for the development of in-water monitoring, reporting, and verification (MRV) of ship-based ocean alkalinity enhancement aboard the R/V Connecticut crise (EXPOCODE 33LQ20230901) in the North Atlantic Ocean, Northeast U.S. Shelf in from 2023-09-02 to 2023-09-04 (NCEI Accession 0305856)
National Oceanic and Atmospheric Administration, Department of Commerce —
This data package contains the shipboard (CTD bottle, CTD sensor profile, and underway measurements) and drifter data collected during a tracer study for the... -
Federal
Continuous water quality sensor data from the main channel and a backwater of the Upper Mississippi River from 2015-2018
Department of the Interior —
This dataset includes high-frequency sensor data collected during four consecutive summers from buoys deployed at main channel and backwater sites in Pool 8 of the... -
Federal
MDDNR, Station Jug Bay
National Oceanic and Atmospheric Administration, Department of Commerce —
At continuous monitoring sites throughout Maryland, water quality is monitored at shallow water sites located in Chesapeake Bay, Chesapeake Bay tributaries and... -
Federal
MDDNR, Station Little Monie Creek
National Oceanic and Atmospheric Administration, Department of Commerce —
At continuous monitoring sites throughout Maryland, water quality is monitored at shallow water sites located in Chesapeake Bay, Chesapeake Bay tributaries and... -
Federal
Datasets for the U.S. Geological Survey - Idaho National Laboratory groundwater and surface-water monitoring networks, v1.1
Department of the Interior —
A collection of analysis-ready datasets for the U.S. Geological Survey - Idaho National Laboratory (USGS-INL) groundwater and surface-water monitoring networks,... -
Federal
Data for monitoring trace metal and benthic community near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California (ver. 3.0, July 2025)
Department of the Interior —
Trace-metal concentrations in sediment and in the clam Macoma petalum (World Register of Marine Species, 2025; formerly reported as Limecola balthica and M. petalum),... -
Federal
CeNCOOS in situ Water monitoring data at the Santa Cruz municipal wharf
National Oceanic and Atmospheric Administration, Department of Commerce —
These nearshore sensors are part of the Central and Norther California Ocean Observing System (CeNCOOS). They measure various water quality parameters at fixed points... -
Federal
CeNCOOS in situ water monitoring data at Trinidad Head, California - fractional_saturation_of_oxygen_in_sea_water
National Oceanic and Atmospheric Administration, Department of Commerce —
The Trinidad shore station is maintained by Humboldt State University. The station has been operational since 2012 and consists of subsurface sensors mounted rigidly... -
Federal
CeNCOOS in situ water monitoring data at Trinidad Head, California - mass_concentration_of_oxygen_in_sea_water
National Oceanic and Atmospheric Administration, Department of Commerce —
The Trinidad shore station is maintained by Humboldt State University. The station has been operational since 2012 and consists of subsurface sensors mounted rigidly... -
Federal
CeNCOOS in situ water monitoring data at Trinidad Head, California - sea_water_turbidity
National Oceanic and Atmospheric Administration, Department of Commerce —
The Trinidad shore station is maintained by Humboldt State University. The station has been operational since 2012 and consists of subsurface sensors mounted rigidly... -
Federal
CeNCOOS in situ water monitoring data at Trinidad Head, California - sea_water_pressure
National Oceanic and Atmospheric Administration, Department of Commerce —
The Trinidad shore station is maintained by Humboldt State University. The station has been operational since 2012 and consists of subsurface sensors mounted rigidly... -
Federal
CeNCOOS in situ water monitoring data at Trinidad Head, California - sea_water_practical_salinity
National Oceanic and Atmospheric Administration, Department of Commerce —
The Trinidad shore station is maintained by Humboldt State University. The station has been operational since 2012 and consists of subsurface sensors mounted rigidly... -
Federal
MDDNR, Station Arundel on the Bay
National Oceanic and Atmospheric Administration, Department of Commerce —
At continuous monitoring sites throughout Maryland, water quality is monitored at shallow water sites located in Chesapeake Bay, Chesapeake Bay tributaries and...