6 datasets found
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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
Estimated nitrogen from septic for the conterminous United States, 2010 (SepN_CONUS_bg_2010)
Department of the Interior —
This metadata record documents a rudimentary estimate of nitrogen from septic for the conterminous United States for 2010, derived from block-group 1990 and 2010... -
Federal
Location of Septic Sewer Systems in the Pacific Northwest
Department of the Interior —
Septic systems are useful for removing and processing human waste. However, they have the potential of leaking or discharging waste into the nearby system and... -
Federal
Attributes for NHDPlus version 2.1 catchments and modified routing of upstream watersheds for the conterminous United States: estimated nitrogen from septic, 2010
Department of the Interior —
This metadata record documents an ascii comma-delimited file representing estimated nitrogen in kilograms by NHDPlus v2.1 catchments for the conterminous United... -
Federal
Nutrients, Escherichia coli, and microbial source tracking markers in surface-water and known-source samples collected in Salado Creek and its watershed near Salado, Texas, 2018
Department of the Interior —
Concerns exist that the degradation of water quality in Salado Creek near Salado, Texas could adversely affect recreational uses and harm salamander populations that... -
Federal
Calculated Leached Nitrogen from Septic Systems in Wisconsin, 1850-2010
Department of the Interior —
This data release contains a netCDF file containing decadal estimates of nitrate leached from septic systems (kilograms per hectare per year, or kg/ha) in the state...
6 datasets found