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Problem The Village of Dryden, rural homeowners, farms, and businesses in the Virgil Creek Valley tap several confined sand and gravel aquifers in the Virgil Creek valley in the town of Dryden . The valley contains a large moraine with complex stratigraphy consisting of continuous and discontinuous layers of till, lake deposits, and glaciofluvial sand and gravel. Sand and gravel units form the aquifers in the valley-fill deposits. There are at least three extensive confined aquifer units at various depths. However, little is known about (1) the location of recharge and discharge areas, (2) direction of groundwater flow, (3) extent of hydraulic connection between aquifer units, and (4) extent of surface- and ground-water...
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Title IV has been successful in reducing emissions of SO2 and NOx from power generation to the levels set by Congress. In fact, by 2009, SO2 emissions from power plants were already 3.25 million tons lower than the final 2010 cap level of 8.95 million tons, and NOx emissions were 6.1 million tons less than the projected level in 2000 without the ARP, or more than triple the Title IV NOx emission-reduction objective. As a result of these emission reductions, air quality has improved, providing significant human health benefits, and acid deposition has decreased to the extent that some acid-sensitive areas are beginning to show signs of recovery. Current emission reductions and the passage of time, which is needed...
Studies of nearshore environmental health by the USGS focus on the interface between health and the environment, where interactions among people, the environment, and other living organisms affect the risk of toxicological and infectious disease. Understanding nearshore ecosystem health is complex, in part, because it is affected by a wide variety of environmental and anthropogenic stressors. The nearshore environment serves a variety of functions such as habitat for plants and animals as well as a variety of human activities. The introduction of contaminants can deteriorate these aquatic resources through degradation of ambient water quality. Contaminants introduced in this manner may accumulate in the sediments...
Scientific information, when reliably obtained and wisely applied, can strengthen our efforts to build resilient coastal communities before storms strike, and guide our response and recovery strategies after landfall. Documenting the height, extent, and timing of overland storm tide and wave dynamics across natural and man-made landscapes, is critical for improved storm-surge modeling for floodplain mapping and real-time forecasting. This leads to better planning, more effective early warning of storm-driven flooding, and strengthening of coastal resilience. The USGS Surge, Wave, and Tide Hydrodynamics (SWaTH) Network developed for the Northeastern Atlantic coast provides critical information on nearshore storm...
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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...
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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...
Beach and barrier dynamics for the Atlantic Ocean and Great Lakes can vary extensively based on the sedimentary environments of these systems. Likewise, the settings can be complex and include components of mainland beachs, barrier islands and dunes, tidal flats and barrier platforms, salt marshes and lagoons, ponds, alluvial fans and inlet deltas, to name a few. The combination of wave, tidal, and storm impacts to coastal morphology also can differ by geographic location. However, barrier islands and spits may be the most vulnerable to changing sedimentary conditions due to human intervention, periodic extreme storms, and accelerating sea-level rise. The USGS is working to enhance mapping of these dynamic settings...
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The U.S. Geological Survey (USGS) is providing an online map of water level measurements in the Magothy and Jameco 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 potentiometric surface altitude was measured at 70 observation wells and 31 supply wells screened...
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The U.S. Geological Survey (USGS) is providing an online map of a continuous depth to water surface for 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...
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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 2013. Also provided here, is a Depth-to-Water map for Long Island, NY, April-May 2013. USGS serves these maps and geospatial data as REST Open Map Services (as well as HTTP, JSON, KML, and shapefile), so end-users can use the maps 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...
Coastal planners and resources managers require information about potential future climate and land-use changes for nearshore areas, in terms that are relevant for the human and natural environments that are likely to be affected by climate change. The collection and synthesis of climate and climate-derived data sets, as well as, land-use and impervious-area data would allow practitioners to analyze and visualize a coastal area's potential impacts caused by future climate and land-use changes. The USGS studies climate and land-changes to provide the tools to understand a changing world and how it impacts our natural resources, our livelihoods, and our communities. Planners and resource managers use a variety of...
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The U.S. Geological Survey (USGS) is providing an online map of potentiometric-surface altitude contours in the Magothy and Jameco 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 potentiometric-surface...
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Problem - Increasing development within the Shenandoah Valley in recent years has placed additional demands on the region’s water resources. The sedimentary rocks in the Valley have been compressed and folded by tectonic forces to form a 5-km deep basin. Ground water, a principal component of the available water supply, flows through fractures in the sedimentary and crystalline rocks that underlie the Valley. Bedding fractures in the rocks are angled downward along the dip of the folds, allowing ground water to penetrate deeply below land surface—fresh water is obtained from wells over 800 ft deep in the Valley. Objectives - Develop a ground-water-flow model to simulate movement of ground water and estimate the...
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Purpose and Scope The Natural Resources Department of the Bad River Band of Lake Superior Chippewa, Odanah, Wisconsin has requested assistance with compiling existing mercury (Hg) concentration data from measurements in a variety of environmental media in an effort to evaluate risks to ecosystem and human health and to identify key data gaps that could be addressed through future sampling. These data include Hg concentrations in fish, frogs, otters, birds, wild rice, the atmosphere, surface water, and sediment. The purpose of this proposed study is to compile existing Hg data collected by the Bad River Band of Lake Superior Chippewa, evaluate the potential risks to humans and to local ecosystems, and to recommend...


map background search result map search result map Ground-water-flow model of the Shenandoah Valley, Virginia and West Virginia National Acid Precipitation Assessment Program Report to Congress 2011: An Integrated Assessment Hydrogeology of the Virgil Creek Valley in the Town of Dryden, Tompkins County, New York Geospatial Dataset of Water-Table and Potentiometric-Surface Altitudes in the Upper Glacial, Magothy, and Lloyd Aquifers of Long Island, New York, April-May 2013 Potentiometric Surface Contours of the Magothy and Jameco Aquifers, April-May 2013 Water Level Data in the Magothy and Jameco Aquifers, April-May 2013 Stream and Lake Average Water-Level Altitudes, April-May 2013 Contours of Water Table Altitudes in the Upper Glacial and Magothy Aquifers, April-May 2013 Depth to Water Raster on Long Island, New York, 2013 Compilation of Mercury Data and Associated Risk to Human and Ecosystem Health, Bad River Band of Lake Superior Chippewa Hydrogeology of the Virgil Creek Valley in the Town of Dryden, Tompkins County, New York Stream and Lake Average Water-Level Altitudes, April-May 2013 Water Level Data in the Magothy and Jameco Aquifers, April-May 2013 Potentiometric Surface Contours of the Magothy and Jameco Aquifers, April-May 2013 Contours of Water Table Altitudes in the Upper Glacial and Magothy Aquifers, April-May 2013 Depth to Water Raster on Long Island, New York, 2013 Geospatial Dataset of Water-Table and Potentiometric-Surface Altitudes in the Upper Glacial, Magothy, and Lloyd Aquifers of Long Island, New York, April-May 2013 Ground-water-flow model of the Shenandoah Valley, Virginia and West Virginia National Acid Precipitation Assessment Program Report to Congress 2011: An Integrated Assessment