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Estimated equivalent population using public supply surface water in the conterminous United States, CEM The population using public supply drinking water was mapped in two ways: the census enhanced method (CEM) evenly distributes the population across the census block-group, and the urban land-use enhanced method (ULUEM) distributes the population only to certain urban land use designations in order to more precisely locate public supply users. This dataset consists of the estimated population using public supply surface water distributed across block-groups. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: United States, drinking water, geoscientificInformation, public supply, surface water Domestic well locations and populations served in the contiguous U.S.: 2010, Road-enhanced method (REM) dataset The 1990 census was the last nationally consistent survey of a home’s source of water, and has not been surveyed since. The associated larger work presents a method for projecting the population dependent on domestic wells for years after 1990, using information from the 1990 census along with population data from subsequent censuses. The method is based on the “domestic ratio” at the census block-group level, defined here as the number of households dependent on domestic wells divided by the total population. Analysis of 1990 data (>220,000 block-groups) indicates that the domestic ratio is a function of the household density. As household density increases, the domestic ratio decreases, once a household density... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: CDF cumulative distribution function, United States, census areas, data-binning, domestic well, All tags... drinking water use, private well, water use, Fewer tags Domestic well locations and populations served in the contiguous U.S.: 2000, Block-group method (BGM) dataset The 1990 census was the last nationally consistent survey of a home’s source of water, and has not been surveyed since. The associated larger work presents a method for projecting the population dependent on domestic wells for years after 1990, using information from the 1990 census along with population data from subsequent censuses. The method is based on the “domestic ratio” at the census block-group level, defined here as the number of households dependent on domestic wells divided by the total population. Analysis of 1990 data (>220,000 block-groups) indicates that the domestic ratio is a function of the household density. As household density increases, the domestic ratio decreases, once a household density... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: CDF cumulative distribution function, United States, census areas, data-binning, domestic well, All tags... drinking water use, private well, water use, Fewer tags Estimated equivalent population using public supply groundwater in the conterminous United States, CEM The population using public supply drinking water was mapped in two ways: the census enhanced method (CEM) evenly distributes the population across the census block-group, and the urban land-use enhanced method (ULUEM) distributes the population only to certain urban land use designations in order to more precisely locate public supply users. This dataset consists of the estimated population using public supply groundwater distributed across census block-groups. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: United States, drinking water, geoscientificInformation, groundwater, public supply Estimated equivalent population using public supply water in the conterminous United States, ULUEM The population using public supply drinking water was mapped in two ways: the census enhanced method (CEM) evenly distributes the population across the census block-group, and the urban land-use enhanced method (ULUEM) distributes the population only to certain urban land use designations in order to more precisely locate public supply users. This dataset consists of the total estimated population using public supply surface water and groundwater combined, distributed using the urban land-use enhanced method. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: United States, drinking water, geoscientificInformation, public supply, surface water Estimated equivalent population using public supply water in the conterminous United States, CEM The population using public supply drinking water was mapped in two ways: the census enhanced method (CEM) evenly distributes the population across the census block-group, and the urban land-use enhanced method (ULUEM) distributes the population only to certain urban land use designations in order to more precisely locate public supply users. This dataset consists of the total estimated population using public supply surface water and groundwater combined, distributed across block-groups. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: United States, drinking water, geoscientificInformation, public supply, surface water Domestic well locations and populations served in the contiguous U.S.: 2010, Block-group method (BGM) dataset The 1990 census was the last nationally consistent survey of a home’s source of water, and has not been surveyed since. The associated larger work presents a method for projecting the population dependent on domestic wells for years after 1990, using information from the 1990 census along with population data from subsequent censuses. The method is based on the “domestic ratio” at the census block-group level, defined here as the number of households dependent on domestic wells divided by the total population. Analysis of 1990 data (>220,000 block-groups) indicates that the domestic ratio is a function of the household density. As household density increases, the domestic ratio decreases, once a household density... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: CDF cumulative distribution function, United States, census areas, data-binning, domestic well, All tags... drinking water use, private well, water use, Fewer tags Estimated equivalent population using public supply surface water in the conterminous United States, ULUEM The population using public supply drinking water was mapped in two ways: the census enhanced method (CEM) evenly distributes the population across the census block-group, and the urban land-use enhanced method (ULUEM) distributes the population only to certain urban land use designations in order to more precisely locate public supply users. This dataset consists of the estimated population using public supply surface water distributed using the urban land-use enhanced method. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: United States, drinking water, geoscientificInformation, public supply, surface water Estimated equivalent population using public supply groundwater in the conterminous United States, ULUEM The population using public supply drinking water was mapped in two ways: the census enhanced method (CEM) evenly distributes the population across the census block-group, and the urban land-use enhanced method (ULUEM) distributes the population only to certain urban land use designations in order to more precisely locate public supply users. This dataset consists of the estimated population using public supply groundwater distributed using the urban land-use enhanced method. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: United States, drinking water, geoscientificInformation, groundwater, public supply Domestic well locations and populations served in the contiguous U.S.: 2000, Road-enhanced method (REM) dataset The 1990 census was the last nationally consistent survey of a home’s source of water, and has not been surveyed since. The associated larger work presents a method for projecting the population dependent on domestic wells for years after 1990, using information from the 1990 census along with population data from subsequent censuses. The method is based on the “domestic ratio” at the census block-group level, defined here as the number of households dependent on domestic wells divided by the total population. Analysis of 1990 data (>220,000 block-groups) indicates that the domestic ratio is a function of the household density. As household density increases, the domestic ratio decreases, once a household density... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: CDF cumulative distribution function, United States, census areas, data-binning, domestic well, All tags... drinking water use, private well, water use, Fewer tags