350 datasets found
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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
Microplastics data collected from streams in the northeastern United States, 2017-2018
Department of the Interior —
These data were collected to characterize the quantity and quality of microplastic particles found in 17 streams in the northeastern United States, from New York to... -
Federal
Chesapeake Bay non-tidal network shapefiles for selected watershed boundaries
Department of the Interior —
This metadata report documents a shapefile of watershed boundaries for 84 selected United States Geological Survey (USGS) water quality stations that are part of the... -
Federal
EPA Impaired Waters presence and causes for HUC12 watersheds across the Conterminous U.S.
Department of the Interior —
This dataset summarizes impairment status for HUC12 watersheds at the CONUS scale using the EPA publicly available Assessment, Total Maximum Daily Load (TMDL)... -
Federal
High-speed mapping of water isotopes and residence time in Cache Slough Complex, San Francisco Bay Delta, CA
Department of the Interior —
Real-time, high frequency (1-second sample interval) GPS location, water quality, and water isotope (δ2H, δ18O) data was collected in the Cache Slough Complex (CSC),... -
Federal
Estimates of Road Salt Application across the Conterminous United States, 1992-2019 (ver. 2.0, August 2023)
Department of the Interior —
Annual estimates of road salt application were initially developed for the conterminous United States for the calendar years 1992 through 2015. As more data became... -
Federal
Microplastics in the water column and sediment in Milwaukee-Area streams, the Milwaukee Harbor, and Lake Michigan, 2016
Department of the Interior —
This dataset describes the quantity, morphology, and polymer identity of microplastics in the water column and surficial sediments of Milwaukee-Area streams, the... -
Federal
Point-source contributions of total nitrogen and total phosphorus from facilities
Department of the Interior —
This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total... -
Federal
Water and sediment data used to evaluate selenium hazards in the Salton Sea ecosystem
Department of the Interior —
Due to declining water levels and increasing salinity in the Salton Sea which may increase the hazards to wildlife, the U.S. Geological Survey and U.S. Bureau of... -
Federal
Water Quality and Molecular Data for Upper Klamath Lake, OR, 2016
Department of the Interior —
Upper Klamath Lake, located in southern Oregon, is a hypereutrophic lake where cyanobacterial blooms, dominated by Aphanizomenon flos-aquae (AFA), occur every summer.... -
Federal
Estimated Densities of Residential Septic Tanks across the Conterminous United States for 12-digit Hydrologic Unit Code 12 (HUC12), National Hydrography Dataset Plus Version 2 (NHDPlusV2) Catchment, and Block Group Scales
Department of the Interior —
This dataset provides estimates of residential septic tank densities at 12-digit Hydrologic Unit Code (HUC12), National Hydrography Dataset (NHD Plus version 2.1,... -
Federal
State-Wide Reconnaissance of Per- and Polyfluoroalkyl Substances, N-(1,3-Dimethylbutyl)-N-phenyl-p-phenylenediamine (6PPD), and 6PPD-Quinone in Iowa Streams, 2022–2023
Department of the Interior —
Water-quality samples were collected at 49 surface water sites covering a range of land uses across the state of Iowa starting the summer of 2022 and continuing into... -
Federal
Chesapeake Bay non-tidal network shapefiles for selected station locations
Department of the Interior —
This metadata report documents a shapefile of 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal... -
Federal
Plankton taxonomy and water quality in the Tualatin River Basin to the west of Portland, Oregon, during the summers of 2018-21
Department of the Interior —
Water-quality data and plankton samples were collected at multiple locations within the Fernhill Natural Treatment wetland and along the Tualatin River, located to... -
Federal
Vertical Profiles and Near Surface Water Quality Transects for Dissolved Oxygen Monitoring of the Arthur Kill, New York and New Jersey, September 7th and 8th, 2023
Department of the Interior —
Transects of near-surface continuous water-quality data and vertical profiles of the same parameters were collected over a 24-hour period from September 7 to... -
Federal
Water-Quality Data for Discrete Samples and Continuous Monitoring on the Merrimack River, Massachusetts, June to September 2020
Department of the Interior —
This data release includes water-quality data collected at up to thirteen locations along the Merrimack River and Merrimack River Estuary in Massachusetts. In this... -
Federal
Surface-Water Geochemistry of Mercury and other Constituents in Clear Lake, Lake County, California
Department of the Interior —
Clear Lake is a 180 km2 freshwater lake located approximately 120 km northwest of Sacramento in the California Coast Range. The lake is a popular sport-fishing... -
Federal
2021 Experimental Discrete Field and Laboratory CO2 System Measurements from the Hillsborough River, Florida
Department of the Interior —
This dataset contains carbon dioxide (CO2) system data collected by scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center... -
Federal
Nutrient and trace element results for the U.S. Geological Survey vernal ponds study, Pleasant Grove, New Jersey, 2022-23.
Department of the Interior —
This data release contains the concentration results for basic water-quality constituent class parameters (water temperature, pH, turbidity, and specific... -
Federal
10: Laboratory standard reference samples for the Gwinnett County, Georgia study for years 2014-2020
Department of the Interior —
This dataset contains laboratory standard reference sample concentrations analyzed by RTI Laboratories, the analytical laboratory used by the Gwinnett County, Georgia...
350 datasets found