Catalog - Data.gov

Found 2547 datasets matching "Water quality/water chemistry".

Federal
Northeastern Hydrologic Benchmark Network (HBN) Soil Chemistry and Catskill Mountain Water-Quality Data
- Organization: Department of the Interior
- Updated: 2020-08-25T00:00:00Z
This data product contains soil chemistry data from 4 locations. Two of the locations were located in the Neversink River watershed near Claryville, NY (01435000) in the Catskill Mountains of New...
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Search relevance: 168.78 | Views last month: 0
Federal
Carbonate chemistry, water quality, coral measurements
- Organization: U.S. Environmental Protection Agency
- Updated: 2017-07-25
Carbonate chemistry parameters (pH, total alkalinity, and pCO2), water quality parameters (Temperature, salinity, Ca, Mg, PO4, NH3 and NO3) as well as all coral measurements (buoyant weight,...
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Search relevance: 163.98 | Views last month: 15
Federal
Nutrient and water chemistry data of Aua Reef in American Samoa from samples collected along a water quality gradient between 2022-09-13 to 2022-09-23
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-08-01T00:00:00.000+00:00
The data described here are from water samples collected during NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) led fly-in Mission to Aua, American Samoa...
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Search relevance: 158.88 | Views last month: 0
Federal
Nutrient and water chemistry data of Nu’uuli Pala Lagoon and Backreef in American Samoa from samples collected along a water quality gradient between 2024-11-08 to 2024-11-20 (NCEI Accession 0307818)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-09-30T00:00:00.000+00:00
The data described here are from water samples collected during NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) led fly-in Mission to Nu'uuli, American...
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Search relevance: 152.77 | Views last month: 0
Federal
Nutrient and water chemistry data of Aua Reef in American Samoa from samples collected along a water quality gradient between 2022-09-13 to 2022-09-23 (NCEI Accession 0282182)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-09-19T00:00:00.000+00:00
The data described here are from water samples collected during NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) led fly-in Mission to Aua, American Samoa...
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Search relevance: 151.04 | Views last month: 0
Federal
US Environmental Protection Agency National Coastal Assessment for American Samoa 2004: water quality, sediment grain, and chemistry data (NCEI Accession 0000455)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2001-05-10T00:00:00.000+00:00
In 2004, the Environmental Protection Agency (EPA) Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment (NCA), coordinated through the Gulf Ecology Division,...
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Search relevance: 144.69 | Views last month: 0
Federal
US Environmental Protection Agency National Coastal Assessment for American Samoa 2004: Water Quality, Sediment Grain and Chemistry Data (NODC Accession 0000455)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-01-06T00:00:00.000+00:00
In 2004, the Environmental Protection Agency (EPA) Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment (NCA), coordinated through the Gulf Ecology Division,...
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Search relevance: 141.22 | Views last month: 0
Federal
Nutrient and water chemistry data of Nu'uuli Pala Lagoon and Backreef in American Samoa from samples collected along a water quality gradient between 2024-11-08 to 2024-11-20
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-01-01T00:00:00.000+00:00
The data described here are from water samples collected during NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) led fly-in Mission to Nu'uuli, American...
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Search relevance: 105.40 | Views last month: 0
Federal
US Environmental Protection Agency National Coastal Assessment for Hawaii 2002: Water Quality, Fish Taxon, Sediment Chemistry Data (NODC Accession 0061250)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-01-06T00:00:00.000+00:00
In 2002, the Environmental Protection Agency (EPA) Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment (NCA), in conjunction with state agencies, Region 9, and the...
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Search relevance: 99.01 | Views last month: 0
Federal
Total pH and alkalinity and other water quality, carbonate chemistry, and physiological variables collected from laboratory experiment observations using the m-cresol dye spectrophotometric and open-cell potentiometric methods and other methods in the Mid-Atlantic region from 2019-07-26 to 2019-09-12 (NCEI Accession 0301881)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-02-21T00:00:00.000+00:00
This dataset contains discrete water sample and physiological data from a laboratory experiment that took place July 26 - September 12, 2019 to observe how ocean acidification might impact the...
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Search relevance: 91.95 | Views last month: 0
Federal
Water Quality Data starting in 2017 for the Lamar River near Tower Ranger Station, WY
- Organization: Department of the Interior
- Updated: 2020-12-01T00:00:00Z
Comma separated values for monthly water chemistry data and water quality field parameters.
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Search relevance: 90.69 | Views last month: 0
Federal
Water Quality Data starting in 2017 for the Yellowstone River at Corwin Springs (Yellowstone National Park)
- Organization: Department of the Interior
- Updated: 2022-08-01T00:00:00Z
Comma separated values for monthly water chemistry data and water quality field parameters, Yellowstone River at Corwin Springs
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Search relevance: 88.39 | Views last month: 0
Federal
Water chemistry data for samples collected at groundwater and surface-water sites near the Lost Hills and Belridge oil fields, November 2016-September 2017, Kern County, California (ver. 2.0, April 2019)
- Organization: Department of the Interior
- Updated: 2021-12-22T00:00:00Z
An investigation was done by the U.S. Geological Survey, in cooperation with the California State Water Resources Control Board's Program of Regional Groundwater Monitoring of Water Quality in...
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Search relevance: 80.23 | Views last month: 0
Federal
Water chemistry data for samples collected at groundwater and surface-water sites near the Lost Hills and Belridge oil fields, November 2016-September 2017, Kern County, California
- Organization: Department of the Interior
- Updated: 2020-08-12T00:00:00Z
An investigation was done by the U.S. Geological Survey, in cooperation with the California State Water Resources Control Board's Program of Regional Groundwater Monitoring of Water Quality in...
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Search relevance: 79.92 | Views last month: 3
Federal
Produced water chemistry data collected from the Oxnard Oil Field, Ventura County, and the Placerita Oil Field, Los Angeles County, 2018, California
- Organization: Department of the Interior
- Updated: 2024-09-27T00:00:00Z
The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board collected produced water and gas samples in the Oxnard Oil Field in Ventura County in...
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Search relevance: 79.32 | Views last month: 1
Federal
Produced water chemistry data collected from the Orcutt Oil Field, 2018, Santa Barbara County, California
- Organization: Department of the Interior
- Updated: 2021-09-09T00:00:00Z
The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board collected produced water and casing gas samples from oil wells and injectate stored in...
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Search relevance: 79.06 | Views last month: 0
Federal
Produced water chemistry data collected from the Poso Creek, Midway-Sunset, and Buena Vista Oil Fields, 2020-21, Kern County, California
- Organization: Department of the Interior
- Updated: 2024-03-05T00:00:00Z
The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board collected produced water and gas samples in the Poso Creek, Midway-Sunset, and Buena Vista...
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Search relevance: 78.78 | Views last month: 1
Federal
Water quality in the Elwha River estuary, Washington, from 2006 to 2014.
- Organization: Department of the Interior
- Updated: 2021-10-13T00:00:00Z
This portion of the data release presents water column dissolved nutrient concentration data and water quality parameters from samples collected in the Elwha River estuary, Washington, in 2006,...
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Search relevance: 78.16 | Views last month: 0
Federal
Great Smoky Mountains National Park Noland Divide Water Quality
- Organization: Department of the Interior
- Updated: 2020-11-23T00:00:00Z
Based on studies in the 1980s linking stream water quality (acidification) and atmospheric acid deposition, the GRSM initiated a long-term continuous water quality monitoring program in the early...

Search relevance: 77.14 | Views last month: 0
Federal
Produced water volatile organic compound and select organic and inorganic data collected from eight oil fields, 2016-2020, California
- Organization: Department of the Interior
- Updated: 2023-04-17T00:00:00Z
The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board collected produced water samples for analysis of volatile organic compounds (VOCs) in the...
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Search relevance: 76.54 | Views last month: 0

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