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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant. Therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant; therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant; therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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Airborne magnetic data are provided here as part of the data release, 'Airborne magnetic and radiometric survey, Virginia and North Carolina Fall Zone, 2021.' This website includes the processed aeromagnetic data provided in an ascii .csv file and a geoTIFF image showing the total magnetic intensity. The contractor report is available on the parent page.
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Amelia County, Association of State Geologists, Bertie County, Brunswick County, All tags...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant; therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant. Therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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Airborne radiometric data are provided here as part of the data release "Airborne magnetic and radiometric survey, Virginia and North Carolina Fall Zone, 2021." This website includes the processed aeroradiometric data (gamma spectrometry for K, U and Th) in an ascii .csv file and geoTIFF images showing the total count values and potassium, thorium, and uranium concentrations. The spectral data are provided in a netcdf file that can be reviewed using any freely available viewer (such as HDFview) or loaded using software or programming languages with netcdf support, such as GSPy for Python (Foks, 2022). The contractor report is available on the parent page. References: Foks, N.L., James, S. R., and Minsely, B....
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Amelia County, Association of State Geologists, Bertie County, Brunswick County, All tags...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant. Therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant; therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over Virginia and North Carolina along and near the eastern U.S. 'Fall Zone', which represents the transitional area between Atlantic Coastal Plain sediments and Piedmont metamorphic and igneous rocks. The airborne data collection was funded by the U.S. Geological Survey (USGS) Earth Mapping Resources Initiative (Earth MRI) and National Cooperative Geological Mapping Program (NCGMP). Goals include a gaining a better understanding of placer deposits containing critical mineral resources titanium, zirconium, and rare earth elements, assisting geologic mapping of the crystalline basement either exposed...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: "Geophysics", "Mineral Resources", "Sedimentology"], "Structural Geology", AASG, All tags...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant. Therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant. Therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant; therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant; therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant; therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
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The U.S. Geological Survey (USGS) Geology, Geophysics and Geochemistry Science Center (GGGSC) collaborated with the USGS Science Analytics and Synthesis (SAS) team to preserve and release a subset of magnetotelluric data from the San Andreas Fault in Loma Prieta, California. The San Andreas Fault data were collected by the Branch of Geophysics, a precursor to the now GGGSC, between 1989 and 1994. The magnetotelluric data selected for this preservation project were collected in 1989 and 1990 using USGS portable truck mounted systems that measure the distribution of electrical conductivity beneath the surface of the earth. Truck mounted systems of this era output data to 3.5” discs, from which data were recovered...


    map background search result map search result map BLM REA COP 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters (waterbodies) BLM REA COP 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters (streams) BLM REA SOD 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters NHD Indexed Dataset BLM REA SOD 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters, Sonoran Desert ecoregion (waterbodies) BLM REA SOD 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters, Sonoran Desert ecoregion (streams) BLM REA NGB 2011 HUC 12 Watersheds with 303(d) listed waters BLM REA NGB 2011 EPA 303(d) Streams BLM REA NGB 2011 EPA 303(d) Ponds and Lakes BLM REA SLV 2013 EPA 303d Poly BLM REA SLV 2013 EPA 303d ln BLM REA CBR 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters NHD Indexed Dataset Line BLM REA CBR 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters NHD Indexed Dataset Poly Magnetotelluric Data from the San Andreas Fault, Loma Prieta CA, 1989-1990 Airborne magnetic and radiometric survey, Virginia and North Carolina Fall Zone, 2021 Airborne magnetic flight line data, Virginia and North Carolina Fall Zone, 2021 Airborne radiometric flight line data, Virginia and North Carolina Fall Zone, 2021 Magnetotelluric Data from the San Andreas Fault, Loma Prieta CA, 1989-1990 BLM REA SLV 2013 EPA 303d Poly Airborne magnetic and radiometric survey, Virginia and North Carolina Fall Zone, 2021 BLM REA SLV 2013 EPA 303d ln Airborne magnetic flight line data, Virginia and North Carolina Fall Zone, 2021 Airborne radiometric flight line data, Virginia and North Carolina Fall Zone, 2021 BLM REA SOD 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters, Sonoran Desert ecoregion (waterbodies) BLM REA SOD 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters, Sonoran Desert ecoregion (streams) BLM REA SOD 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters NHD Indexed Dataset BLM REA COP 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters (waterbodies) BLM REA COP 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters (streams) BLM REA NGB 2011 EPA 303(d) Ponds and Lakes BLM REA NGB 2011 EPA 303(d) Streams BLM REA NGB 2011 HUC 12 Watersheds with 303(d) listed waters BLM REA CBR 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters NHD Indexed Dataset Poly BLM REA CBR 2010 EPA Office of Water (OW): 303(d) Listed Impaired Waters NHD Indexed Dataset Line