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Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (2) OGC WFS Layer (2) OGC WMS Layer (2) OGC WMS Service (2) Contacts U.S. Geological Survey U.S. Geological Survey - ScienceBase Kristina G Hopkins Joshua C Henley South Atlantic Water Science Center Water Resources Categories Data (1) Tag Types Theme (2) Place (2) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes USGS Thesaurus (2) ISO 19115 Topic Category (2) Geographic Names Information System (2) Other (1) Alexandria Digital Library Feature Type Thesaurus (2) Marine Realms Information Bank (MRIB) keywords (2) View Results as: JSON ATOM CSV

06: Property parcel building construction dates and densities in 15 watersheds in Gwinnett County, Georgia in 2021 This dataset contains the number of buildings and their construction dates within the 15 study watersheds in Gwinnett County, Georgia. Dataset reflects existing buildings as of October 2021 and construction dates range from 1810 to 2021. The dataset was created by matching parcel boundaries obtained from Gwinnett County with building construction dates from the Gwinnett County Cadastral database. Building densities were calculated for each watershed and year to estimate temporal changes in watershed building densities. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Gwinnett County, State of Georgia, buildings, imageryBaseMapsEarthCover, land use and land cover, All tags... structure, watershed, Fewer tags Watershed characteristics and streamwater constituent load data, models, and estimates for 15 watersheds in Gwinnett County, Georgia, 2000-2021 This data release contains 15 datasets and associated metadata of watershed characteristics and data related to stream water quality and constituent load estimation for 15 study watersheds in Gwinnett County, Georgia. Dataset periods vary but range within 2000 to 2021. The 15 datasets are organized as individual child items. The data release includes three Geographic Information System shapefiles: (1) 01: Watersheds shapefile for the 15 study watersheds in Gwinnett County, Georgia; (2) 02: Stormwater drainage areas shapefile for the 15 study watersheds in Gwinnett County, Georgia, August 2021; and (3) 03: 200-foot stream buffer shapefiles for 15 watersheds in Gwinnett County, Georgia. The data release includes four... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Gwinnett County, Gwinnett County Department of Water Resources, Hydrology, Land Use Change, State of Georgia, All tags... USGS Science Data Catalog (SDC), Water Quality, buildings, datasets, drainage basins, environment, imageryBaseMapsEarthCover, impervious area, inlandWaters, laboratory quality control, land use and land cover, material standards, mathematical modeling, population (human), runoff, society, stream, stream-gage measurement, streamflow, structure, surface water quality, water quality, water quality assurance, watershed, Fewer tags