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State of the Aquifer, Long Island, New York Background In recent years, more and more people have become concerned about Long Island's supply of freshwater. Currently, there is no comprehensive, island-wide resource that summarizes recent U.S. Geological Survey (USGS) research related to the Island's aquifer system. A webpage will be developed by the USGS that will compile published data from the hydrologic-surveillance program, in place since the mid-1970’s, and various USGS sources, and supplement this information with more recent seasonal and annual hydrologic technical assistance will be provided to the Suffolk County Water Authority (SCWA) to help them produce an easy to understand annual report that will provide a snapshot of the state of Long Island's... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cooperative Water Program, GW or SW, GW or SW, GW or SW, Geospatial Applications, All tags... Geospatial Applications, Hydrogeologic Characterization, Hydrogeologic Characterization, Hydrogeologic Characterization, Investigation and Monitoring Support, Investigation and Monitoring Support, Investigation and Monitoring Support, Long Island, Mapping Application Development, Mapping Application Development, Mapping Applications Development, Nassau County, New York, New York City, Suffolk County, USGS New York Water Science Center, WSC, Water Use and Availability Science, Water Use and Availability Science, Fewer tags Occurrence of per- and polyfluoroalkyl substances, Long Island and New York City, New York State and local county health departments have detected per- and polyfluoroalkyl substances (PFAS) in groundwater downgradient of airports and military and firefighting training areas in Long Island, New York. However, the occurrence and spatial distribution of PFAS throughout the surficial aquifer is not well established. Shallow groundwater samples were collected in 2018 from two observation well networks; the Sentinel network and Wastewater Treatment Plant groundwater (WTPGW) network. The Sentinel network is an island-wide group of wells screened within the shallow upper glacial (surficial, <100 feet deep) aquifer, which were sampled to assess the occurrence of PFAS in different land-use settings. The WTPGW network... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Contaminants, Emerging, Geochemistry, Groundwater-Quality Monitoring, Hydrology, Long Island, All tags... Nassau County, New York, PFAS, Queens County, Suffolk County, USGS Science Data Catalog (SDC), United States, Water Quality, Water Quality, Water Quality, contaminants of emerging concern, groundwater quality, groundwater quality, water quality, water sampling, Fewer tags Nassau Hydrogeologic Maps Problem - The major hydrogeologic units of Long Island, New York, have been delineated as part of the islandwide mapping effort of Smolensky, Buxton, and Shernoff that was published in 1989 as U.S. Geological Survey (USGS) Hydrologic Atlas (HA) 709. Concern about local details in the hydrogeologic framework that may not be represented in HA-709 has led the USGS, in cooperation with the U.S. Environmental Protection Agency (EPA), to assess the hydrogeology of the Long Island area so ground-water-flow modeling planned by EPA can more fully reflect local hydrogeologic conditions. Objectives - The primary objective of this project is to construct geographic information system (GIS) datasets of the altitudes of the... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Basin & Hydrogeologic Characterization, Basin & Hydrogeologic Characterization, Basin & Hydrogeologic Characterization, Completed, Cooperative Water Program, All tags... GIS, water table,land surface altitude, aquifer ,well logs,maps, GW or SW, GW or SW, GW or SW, Geospatial Applications, Geospatial Applications, Hydrogeologic Characterization, Hydrogeologic Characterization, Hydrogeologic Characterization, Long Island, Nassau County, New York, USGS New York Water Science Center, WSC, Water Use and Availability Science, Water Use and Availability Science, Fewer tags Mean tidal range of marsh units in north shore Long Island salt marsh complex, New York This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence wetland health. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with tools to estimate the vulnerability and ecosystem... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, LTER, Long Island Sound, Long-Term Ecological Research, Nassau County, All tags... New York, Suffolk County, United States, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, tidal range, tides (oceanic), vegetation, wetland ecosystems, wetland functions, Fewer tags Approximate Regional Groundwater Divide on Long Island, New York, April-May 2016 The U.S. Geological Survey (USGS) is providing online maps of water-table and potentiometric-surface altitude in the upper glacial, Magothy, Jameco, Lloyd, and North Shore aquifers on Long Island, New York, April–May 2016. Also provided is a depth-to-water map for Long Island, New York, April–May 2016. The USGS makes these maps and geospatial data available as REST Open Map Services (as well as HTTP, JSON, KML, and shapefile), so end-users can consume them on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3398 (Como and others, 2018; https://doi.org/10.3133/sim3398) further describes data collection and map preparation and presents 68x22 in. Portable Document... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Long Island, Nassau County, New York, Suffolk County, depth to water, All tags... depth to water, environment, geoscientificInformation, groundwater divide, groundwater divide, hydrologic conditions, hydrologic conditions, hydrology, hydrology, inlandWaters, vadose zone, vadose zone, water table, water table, Fewer tags Potentiometric Surface Contours of the Lloyd and North Shore Aquifers, April-May 2016 The U.S. Geological Survey (USGS) is providing online maps of water-table and potentiometric-surface altitude in the upper glacial, Magothy, Jameco, Lloyd, and North Shore aquifers on Long Island, New York, April–May 2016. Also provided is a depth-to-water map for Long Island, New York, April–May 2016. The USGS makes these maps and geospatial data available as REST Open Map Services (as well as HTTP, JSON, KML, and shapefile), so end-users can consume them on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3398 (Como and others, 2018; https://doi.org/10.3133/sim3398) further describes data collection and map preparation and presents 68x22 in. Portable Document... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Contours, Groundwater, Hydrology, Levels, Lloyd aquifer, All tags... Long Island, Nassau County, New York, North Shore Aquifer, Potentiometric surface contours, Suffolk County, USGS, Water level, environment, geoscientificInformation, inlandWaters, Fewer tags Mean tidal range in marsh units of Jamaica Bay to western Great South Bay salt marsh complex, New York This data release contains coastal wetland synthesis products for the geographic region from Jamaica Bay to western Great South Bay, located in southeastern New York State. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence wetland health. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Jamaica Bay, LTER, Long-Term Ecological Research, Nassau County, All tags... New York, Queens County, South Oyster Bay, United States, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, tidal range, tides (oceanic), vegetation, wetland ecosystems, wetland functions, Fewer tags Unvegetated to vegetated ratio of marsh units in north shore Long Island salt marsh complex, New York This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence wetland health. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with tools to estimate the vulnerability and ecosystem... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, LTER, Long Island Sound, Long-Term Ecological Research, Nassau County, All tags... New York, Suffolk County, UVVR, United States, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Water Table Contours in the Upper Glacial and Magothy Aquifers, April-May 2016 The U.S. Geological Survey (USGS) is providing online maps of water-table and potentiometric-surface altitude in the upper glacial, Magothy, Jameco, Lloyd, and North Shore aquifers on Long Island, New York, April–May 2016. Also provided is a depth-to-water map for Long Island, New York, April–May 2016. The USGS makes these maps and geospatial data available as REST Open Map Services (as well as HTTP, JSON, KML, and shapefile), so end-users can consume them on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3398 (Como and others, 2018; https://doi.org/10.3133/sim3398) further describes data collection and map preparation and presents 68x22 in. Portable Document... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Contours, Groundwater, Hydrology, Levels, Long Island, All tags... Magothy Aquifer, Nassau County, New York, Suffolk County, USGS, Upper Glacial Aquifer, Water level, environment, geoscientificInformation, inlandWaters, water table contours, Fewer tags Time Domain Electromagnetic Surveys Collected to Estimate the Extent of Saltwater Intrusion in Nassau and Queens County, New York, October-November 2017 During October-November 2017 twelve time domain electromagnetic (TDEM) surveys were collected in Nassau and Queens County. The data were collected to estimate the extent of saltwater intrusion in support of the Long Island Groundwater Sustainability Project in cooperation with the New York State Department of Environmental Conservation. In the TDEM method, an electrical current is run through a wire in a transmitter loop, which in turn produces a magnetic field. The strength of the magnetic field is proportional to the strength of the electrical current. The current is rapidly shut off and due to Faraday’s Law, a secondary current is induced. The strength of the secondary current is proportional to the rate of... Categories: Data; Tags: Electromagnetic surveying, Geophysics, Geophysics, Geophysics, Groundwater, All tags... Hydrology, Nassau County, New York, Queens County, Resistivity, Salinity, Saltwater Intrusion, Saltwater Intrusion, Surface Geophysics, USGS Science Data Catalog (SDC), Water Resources, Fewer tags Pesticides, nutrients, and inorganics in shallow groundwater, Long Island, NY, 2016-2018 Groundwater samples collected between 2016 and 2018 from 56 shallow (<40 m depth) monitoring wells in Long Island, N.Y., were collected in support of the Long Island Pesticide Pollution Prevention Strategy. Each well was sampled at least once and analyzed for over 200 pesticides and pesticide degradates as part of this study. Results presented here also include field and inorganic analysis data, as well as neonicotinoid (LC9045) and glyphosate pesticide data collected from select monitoring wells. Data collection and analysis was supported by the New York State Department of Environmental Conservation, Suffolk County Department of Health Services, and Long Island Commission for Aquifer Protection. The results presented... Categories: Data; Tags: Groundwater-Quality Monitoring, Long Island, Nassau County, New York, Suffolk County, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Quality, Water Resources, groundwater, pesticide, water quality, Fewer tags Contours of Water Table Altitudes in the Upper Glacial and Magothy Aquifers, April-May 2013 The U.S. Geological Survey (USGS) is providing an online map of water-table altitude contours in the upper glacial and Magothy aquifers on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. This polyline shapefile consists of digital contours that represent the water table altitude in the upper... Categories: Data, Publication; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Contours, Geospatial Applications, Groundwater, Hydrology, Information Visualization, All tags... Kings County, Levels, Long Island, Magothy Aquifer, Mapping Application Development, Nassau County, New York, Queens County, Suffolk County, USGS, Upper Glacial Aquifer, Water level, environment, environment, geoscientificInformation, geoscientificInformation, inlandWaters, inlandWaters, water table contours, Fewer tags GIS shapefile and summary tables of the extent of irrigated agricultural land use for 11 counties fully or partially within the St. Johns River Water Management District Florida, 2022–23 A Geographic Information System (GIS) shapefile and summary tables of the extent of irrigated agricultural land-use are provided for eleven counties fully or partially within the St. Johns River Water Management District (full-county extents of: Brevard, Clay, Duval, Flagler, Indian River, Nassau, Osceola, Putnam, Seminole, St. Johns, and Volusia counties). These files were compiled through a cooperative project between the U.S. Geological Survey and the Florida Department of Agriculture and Consumer Services, Office of Agricultural Water Policy. Information provided in the shapefile includes the location of irrigated lands that were verified during field surveying that started in November 2022 and concluded in... Categories: Data; Tags: Brevard County, Clay County, Crop type, Duval County, Flagler County, All tags... Florida, Florida Department of Agriculture and Consumer Services, Groundwater, Groundwater, Image collections aerial photography, Indian River County, Irrigation type, Land use, Land use classification codes, Nassau County, Osceola County, Putnam County, Seminole County, St. Johns County, St. Johns River Water Management District, Surface water, USGS Science Data Catalog (SDC), Volusia County, Water Resources, environment, environment, farming, inlandWaters, Fewer tags Conceptual marsh units for Jamaica Bay to western Great South Bay salt marsh complex, New York This data release contains coastal wetland synthesis products for the geographic region from Jamaica Bay to western Great South Bay, located in southeastern New York State. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence wetland health. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Jamaica Bay, LTER, Long-Term Ecological Research, Nassau County, All tags... New York, Queens County, South Oyster Bay, United States, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Elevation of marsh units in Jamaica Bay to western Great South Bay salt marsh complex, New York This data release contains coastal wetland synthesis products for the geographic region from Jamaica Bay to western Great South Bay, located in southeastern New York State. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence wetland health. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Jamaica Bay, LTER, Long-Term Ecological Research, Nassau County, All tags... New York, Queens County, South Oyster Bay, United States, coastal ecosystems, coastal processes, elevation, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Rate of shoreline change of marsh units in north shore Long Island salt marsh complex, New York This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, mean tidal range, and shoreline change rate are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence wetland health. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with tools to estimate the... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Long Island Sound, Nassau County, New York, Suffolk County, All tags... United States, accretion, coastal ecosystems, coastal processes, coastline, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, polygon shapefile, resilience, salt marsh, sediment, shoreline, tides (oceanic), vegetation, vulnerability, wetland ecosystems, wetland functions, Fewer tags Stream and Lake Average Water-Level Altitudes, April-May 2013 The U.S. Geological Survey (USGS) is providing an online map of stream and lake gage water level measurements on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. Continuous records of water level altitude at 16 U.S. Geological Survey (USGS) streamgaging stations (15 streams and... Categories: Data, Publication; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Geospatial Applications, Groundwater, Hydrology, Information Visualization, Levels, All tags... Long Island, Mapping Application Development, Nassau County, New York, Suffolk County, Surface water, USGS, Water Level, Water table, environment, geoscientificInformation, inlandWaters, Fewer tags Depth to Water Data in the Upper Glacial and Magothy Aquifers, April-May 2013 ​ The U.S. Geological Survey (USGS) is providing an online map of depth to water measurements in the upper glacial and Magothy aquifers on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. The depth to water table was measured at 335 groundwater monitoring wells (observation and... Categories: Data, Publication; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Kings County, Long Island, Nassau County, New York, Queens County, All tags... Suffolk County, depth to water, environment, environment, geoscientificInformation, geoscientificInformation, hydrologic conditions, inlandWaters, inlandWaters, vadose zone, water table, Fewer tags Aquifer texture data describing the Long Island aquifer system This dataset has been archived; it has been superceded by version 2.0 (March 2021), which can be found at https://doi.org/10.5066/P954DLLC. The data contained in this data release support USGS Scientific Investigations Report 2020-5023, "Distribution of selected hydrogeologic characteristics of the upper glacial and Magothy aquifers, Long Island, New York" (Walter and Finkelstein, 2020). This data release contains estimates of aquifer texture describing the Long Island aquifer system. These estimates in total can be considered a model of aquifer texture describing unconsolidated sediments in the following principal units: 1) Upper glacial aquifer, 2) Jameco aquifer, 3) Monmouth Greensand confining unit, and 4)... Categories: Data; Tags: Aquifer, Aquifer Mapping, Clay, Conductivity, GW Model, All tags... Geospatial Applications, Groundwater-Flow Modeling, Hydraulic conductivity, Hydrogeologic Characterization, Kings County, Lignite, Long Island, Nassau County, New York, Pyrite, Queens County, Suffolk County, Texture model, WQ Model, Fewer tags Depth to Water Data in the Upper Glacial and Magothy Aquifers, April-May 2016 The U.S. Geological Survey (USGS) is providing online maps of water-table and potentiometric-surface altitude in the upper glacial, Magothy, Jameco, Lloyd, and North Shore aquifers on Long Island, New York, April–May 2016. Also provided is a depth-to-water map for Long Island, New York, April–May 2016. The USGS makes these maps and geospatial data available as REST Open Map Services (as well as HTTP, JSON, KML, and shapefile), so end-users can consume them on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3398 (Como and others, 2018; https://doi.org/10.3133/sim3398) further describes data collection and map preparation and presents 68x22 in. Portable Document... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Long Island, Nassau County, New York, Suffolk County, depth to water, All tags... environment, geoscientificInformation, hydrologic conditions, inlandWaters, vadose zone, water table, Fewer tags 1 2 3 »