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Trends in Nitrate Concentrations in Public Water-Supply Wells, Suffolk County, New York, 1982-2008 Introduction High nitrate concentrations are a common concern among many purveyors, including the Suffolk County Water Authority (SCWA), the largest supplier of water to residents in Suffolk County. Typically, the amount of nitrate in groundwater is related to land use, where the greatest concentrations are observed in agricultural regions. In many areas, the nitrate concentration has increased steadily in recent years, even in areas that are no longer farmed and are now sewered. A statistical analysis for trends of over 20 years in nitrate concentration data from SCWA wells is needed to determine the susceptibility of supply-wells to exceed the Maximum Contaminant Level (MCL) for nitrate. This information is essential... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Contaminants, Natural, Contaminants, Natural, Contaminants, natural, Cooperative Water Program, GW Model, All tags... GW Model, GW model, GW or SW, GW or SW, GW or SW, Groundwater Monitoring, Groundwater Monitoring, Groundwater Monitoring, Groundwater Recharge, Groundwater Recharge, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Groundwater recharge, Groundwater-Flow Modeling, Groundwater-Flow Modeling, Groundwater-Flow Modeling, New York, Suffolk County, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water Use and Availability Science, Water Use and Availability Science, Water quality, public water-supply wells, nitrate, Fewer tags Hudson River Salt-Front Monitoring Project, New York Study area Hudson River from Hyde Park to Yonkers, N.Y. Period of project Continuous since October 1991 Problem - The location of the salt front (freshwater-saltwater interface) in the lower Hudson River basin can affect wildlife habitats and freshwater withdrawals for municipal use. Knowing the location of the salt front can help managers make informed decisions to protect the environment, maintain drinking water standards, and issue health advisories pertaining to drinking water, if needed. Objectives - Estimate the location of the salt front (defined as 100mg/L chloride) in the lower Hudson River. Specifically, collect water-surface elevation, specific conductance, and water-temperature data at three gages... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Completed, Cooperative Water Program, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Hudson River Estuary, All tags... National Streamflow Information Program, New York, Saltwater Intrusion, Saltwater Intrusion, Saltwater intrusion, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, USGS New York Water Science Center, WSC, salt front, Fewer tags Vertical Profiles and Near Surface Water Quality Transects for Dissolved Oxygen Monitoring of the Arthur Kill, New York and New Jersey, September 7th and 8th, 2023 Transects of near-surface continuous water-quality data and vertical profiles of the same parameters were collected over a 24-hour period from September 7 to September 8, 2023 in the Arthur Kill. The Arthur Kill is a tidal strait located between Staten Island, New York, and Union and Middlesex Counties, New Jersey, and connects Newark Bay to the north and Raritan Bay to the south. It is a major shipping channel for the Port of New York and New Jersey surrounded by industrial and highly developed land. Transects were collected using a Yellow Springs Instruments (YSI) EXO2 series water-quality sonde with a 5-second data collection interval while the boat was in motion. Vertical profiles of water-quality parameters... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arthur Kill, Dissolved Oxygen, Ecosystem Health, Ecosystem Health, Middlesex County, All tags... Near-surface, New Jersey, New York, Newark Bay, Raritan Bay, Specific Conductance, Staten Island, Surface water quality, Surface-Water Monitoring, Transect, Turbidity, USGS Science Data Catalog (SDC), Union County, United States, Vertical Profile, Water Quality, Water Quality, Water Temperature, Water quality, pH, Fewer tags Surface-Water Data Collection in New York Problem Surface-water information is needed for planning, design, hazard warning, and operation and management in water-related fields such as water supply, hydroelectric power, flood control, irrigation, bridge and culvert design, wildlife management, pollution abatement, flood-plain management, and water-resources development. Appropriate historical and real-time surface-water data, such as stream flow and stage, reservoir levels, and water temperature, are necessary to properly assess, manage and protect water resources. Objectives Collect timely and high quality surface-water data for (1) assessment of water resources; (2) operation of reservoirs or industries; (3) forecasting flow; (4) disposal of wastes... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate Impacts, Climate Impacts, Climate Research and Development, Climate impacts, Cooperative Water Program, All tags... Core Science Analytics, Synthesis, and Libraries, Ecoflows, Ecoflows, Ecoflows, Energy Resources, Environments, Flood Inundation, Flood Inundation, Flood Inundation, Floods and Droughts, GW or SW, GW or SW, GW or SW, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Low Flow or Peak Flow, Low Flow or Peak Flow, Low flow or peak flow, SW Model, SW model, Stream Hydraulics, Stream Hydraulics, Stream hydraulics, StreamStats, StreamStats, StreamStats, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Toxic Substance Hydrology, USGS New York Water Science Center, WSC, Fewer tags Hurricane Sandy -- Science to support coastal resilience Coastal Hydrology and Storm Surge Storm-surge is one of the most powerful and destructive elements of major storm events. Excessively high tides associated with storms can flood and inundate coastal areas, often moving sediment and altering coastal landscapes and drainages. USGS provides critical expertise in measuring storm surge and assessing conditions both before and after the storm. Through development of storm tide monitoring networks, data analysis, and data delivery, USGS provides vital information to help coastal communities prepare for and recover from storm surge events. View Fact Sheet Science Science Support for Tribes Tide gage/weather station installed in collaboration with Mashpee-Wampanoag Tribe.... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Coastal Science, Coastal Science, Flood Inundation, Flood Inundation, Flood Inundation, All tags... Groundwater and Streamflow Information, Groundwater and Streamflow Information, Hurricane Sandy, Hydrologic Networks and Analysis, New York,New Jersey,Maryland,Delaware, Virginia,North Carolins, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Surge, Wave, Tide Hydrodynamics, Tide and Wave Hydrodynamics, Tide and Wave Hydrodynamics, Tide and Wave Hydrodynamics, USGS New York Water Science Center, WSC, Fewer tags Water Resources of Monroe County, New York In 1979, the U.S. Geological Survey (USGS) entered into a cooperative agreement with Monroe County (MC), which, over the span of more than three decades, has resulted in more than 30 reports that have summarized flow and water-quality data at sites in Monroe County and have presented the results of investigations of particular water-related issues that existed in the County. The collaborative relationship between Monroe County and the USGS entails: - USGS training and oversight of MC personnel to conduct site visits and measure streamflow and collect water samples at monitoring sites; - analyses of water samples by MC in a certified environmental laboratory that routinely participates in a USGS quality-control program... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Coastal Science, Coastal Science, Cooperative Water Program, Ecosystem Health, GW or SW, All tags... GW or SW, GW or SW, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Quality Monitoring, Surface-Water Quality Monitoring, Surface-Water-Quality Monitoring, USGS New York Water Science Center, Urban Landscapes, Urban Landscapes, Urban Landscapes, WSC, Water Quality, Water Quality, Water Quality, Water quality, Wetlands, Wetlands, Wetlands, Fewer tags Estimating Loading Above and Below Agricultural Best Management Practices (BMPs) and Combined Animal Feeding Operations (CAFOs) in the Genesee River Watershed The current information available for the Genesee River and watershed is insufficient to assess if the Beneficial Use Impairment (BUI) delisting criteria for the Rochester Embayment Area of Concern (AOC) can or have been met. With on-going and future projects that are implementing best practices to control soil erosion and the reduction of nutrients that reach the Rochester Embayment, the river and the watershed, it becomes a necessity to: 1.) collect more frequent Total Suspended Sediment (TSS) data for the Genesee River both within and outside of the AOC; and 2.) to have a study design capable of evaluating the impact/success of the current and proposed GLRI projects in the watershed. This project is envisioned... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: BMP, Best-Management Practices, Best-Management Practices, Best-Management Practices, CAFO, All tags... Climate Change, Climate Change, Climate Impacts, Climate Impacts, Climate impacts, ClimateChange, Contaminants, Organic, Contaminants, Organic, Contaminants, organic, Cooperative Water Program, Ecosystem Health, Ecosystem Health, Genesee River Watershed, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Land Use Effects, Land Use Effects, Land use effects, New York, Rochester AOC, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water quality, Fewer tags Effects of Stream Restoration and Bank Stabilization on Suspended Sediment in Tributaries to the Upper Esopus Creek Introduction The upper Esopus Creek watershed is located in the eastern Catskill Mountains of New York State and covers 497 km2 from Slide Mountain, the highest peak in the Catskills at 1,274 m, to the Ashokan Reservoir at 193 m elevation (fig. 1). Suspended sediment and turbidity are primary water quality concerns in the Ashokan Reservoir watershed, part of the New York City Catskill-Delaware water supply system that supplies more than 10 million people a day with clean drinking water. Stream corridor assessments of tributaries to the Upper Esopus Creek by Ulster County Soil and Water Conservation District, New York City Department of Environmental Protection, and State University of New York at New Paltz summer... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Completed, Cooperative Water Program, Esopus Creek, Groundwater and Streamflow Information, Groundwater and Streamflow Information, All tags... New York, Sediment, Sediment, Sediment, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Turbidity, Turbidity, Turbidity, USGS New York Water Science Center, WSC, turbidity, Fewer tags Stream Temperature, Dissolved Radon, and Stable Water Isotope Data Collected along Headwater Streams in the Upper Neversink River Watershed, NY, USA (ver. 2.0, April 2023) This data release contains three data types that could potentially be used to infer spatiotemporal variability in groundwater discharge processes, along with other research and monitoring purposes: 1) Temporally continuous stream channel water temperature and adjacent streambank air temperature time series data (generally starting November 2020) as well as limited temperature data from May to October 2022 from select seeps and springs; 2) Discrete stable isotope data collected from stream water (May 2021, October/November 2021, May 2022, October/November 2022); and 3) Discrete dissolved radon gas data from stream water (collected May 2021 and May 2022). Data were collected at 51 temporary stations installed along... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Ambient Monitoring, Groundwater and Streamflow Information, Neversink River, New York, Radon, All tags... Sullivan County, Ulster County, Surface-Water Monitoring, USGS Science Data Catalog (SDC), environment, geoscientificInformation, groundwater and surface-water interaction, headwater streams, hydrogeology, hydrology, inlandWaters, oxygen isotope analysis, surface water (non-marine), water temperature, Fewer tags Hydrogeologic and Geochemical Assessment of the Effects of Leakage from the Catskill and Delaware Aqueducts on the Local Bedrock and Overburden Aquifers in Southeastern New York PROBLEM As part of an effort to sustain a viable water-supply system for 8 million residents in New York City, and 1 million other residents in upstate New York that rely on City water, the New York City Department of Environmental Protection (NYCDEP) has requested a multi-disciplinary study by the U.S. Geological Survey (USGS) to determine the source(s) of water to surface-water sites (springs and expressions) in areas adjacent to the Catskill Aqueduct. In the area near the Delaware Aqueduct, which has been determined by the USGS to have a water-tunnel contribution to flooding issues during periods of high precipitation, the NYCDEP plans to repair the leaks with a grouting procedure. However, without monitoring... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cooperative Water Program, Groundwater Monitoring, Groundwater Monitoring, Groundwater and Streamflow Information, Groundwater-Quality Monitoring, All tags... Groundwater-Quality Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, USGS New York Water Science Center, WSC, Water Quality, Fewer tags Development of a Coordinated Water Resources Monitoring Strategy for the South Shore Estuary Reserve, Long Island NY The U.S. Geological Survey (USGS) is collaborating with the New York Department of State (NYDOS) Office of Planning and Development to prepare a new Long Island South Shore Estuary Reserve (SSER) Coordinated Water Resources Monitoring Strategy (CWRMS). Since 2000, when the last CWRMS was published, numerous research projects and studies are demonstrating several new threats to the ecologic health and resilience of the SSER. Contemporary threats include: Eutrophic conditions brought on by high levels of nutrients from sewage treatment plant discharges, stormwater runoff, groundwater seepage, and atmospheric contributions; Increased occurrences of harmful algal blooms in the past 15 years; and, Growing concern... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Biogeochemical and Hydrologic Assessment, Biogeochemical and Hydrologic Assessment, BiogeochemicalandHydrologicAssessment, Climate and Land-Use Change, Climate and Land-Use Change, All tags... Climate and Land-Use Change, Coastal Science, Coastal Science, Contaminants, HABS, Contaminants, HABS, Contaminants, HABs, Cooperative Water Program, Ecological Assessment of Human and Natural Impacts, Ecological Assessment of Human and Natural Impacts, Ecological Assessment of Human and Natural Impacts, Ecosystem Health, Ecosystem Health, Flood Hazards, Flood Hazards, Flood Hazards, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Nearshore Environmental Health, Nearshore Environmental Health, Nearshore Environmental Health, New York, South Shore Estuary Reserve, Long Island, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water quality, Fewer tags Southeastern New York Tide-Telemetry and Coastal-Flood-Warning System The coastal areas of southeastern New York (fig. 1) are highly vulnerable to tidal flooding (fig. 2). Timely evacuation of people from flood-threatened areas in advance of approaching hurricanes and nor'easters (northeast coastal storms) requires adequate flood-warning time. To begin addressing this need for immediate information on coastal flooding, the U.S. Geological Survey (USGS), in cooperation with the Town of Hempstead Department of Conservation & Waterways, Village of Freeport, and New York State Department of Environmental Conservation, has operated a network of real-time tidal water-elevation and meteorological stations since 1997 in the coastal areas of Long Island and New York City. Each tidal water-elevation... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate Impacts, Climate Impacts, Climate impacts, Coastal Science, Coastal Science, All tags... Cooperative Water Program, Core Science Analytics, Synthesis, and Libraries, Flood Hazards, Flood Hazards, Flood Hazards, Flood Inundation, Flood Inundation, Flood Inundation, Flood Science, Flood Science, Flood Science, Floods and Droughts, GW or SW, GW or SW, GW or SW, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Low Flow or Peak Flow, Low Flow or Peak Flow, Low flow or peak flow, New York, Stormwater, Stormwater, Stormwater, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, USGS New York Water Science Center, WSC, Water Use and Availability Science, Water Use and Availability Science, coastal areas of southeastern New York, Fewer tags St. Lawrence Monitoring Network – Lake Ontario Lake Management Plan Massena, NY Area of Concern (AOC) The St. Lawrence River at Massena Remedial Action Plan (RAP) Area of Concern (AOC) begins above the power dam facilities and seaway locks at the Massena Village drinking water intake and follows the river downstream for about fifteen miles to the international border. For New York State, the AOC includes portions of the Grasse, Raquette and St. Regis Rivers. There are three governmental agency groupings that share jurisdictional responsibilities for the AOC. These are the United States, Canada, and the St. Regis Mohawk Tribe at Akwesasne. The Cornwall portion of the AOC includes lands in Ontario, Quebec, and the Mohawks extending downstream of the power dam to the eastern outlet of Lake St. Francis. Since 2010,... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Completed, Cooperative Water Program, Focused Assessments, Focused Assessments, Focused Assessments, All tags... Groundwater and Streamflow Information, Groundwater and Streamflow Information, Massena NY, New York, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Quality Monitoring, Surface-Water Quality Monitoring, Surface-Water-Quality Monitoring, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water Quality, Water Quality, Water quality, Fewer tags Estuarine Physical Response to Storms—Jamaica Bay Problem Coastal communities are susceptible to damage from coastal storms and associated storm surge, and although tidal wetlands provide a buffer against shoreline erosion and aid in shoreline stabilization, they too are vulnerable to the action of storms. Tidal wetland dynamics need to be better understood, as they are also intrinsically valuable as nursery, feeding, and refuge areas for many commercial and recreational fisheries, and significantly contribute to the base of the marine food web. Wetlands trap sediments, reduce turbidity, and absorb nutrients and pollutants thereby improving water quality, and they provide many recreational opportunities. Tidal wetland stability needs to be assessed using a sediment... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beach and Barrier dynamics, Climate and Land-Use Change, Climate and Land-Use Change, Climate and Land-Use Change, Coastal Science, All tags... Coastal Science, Cooperative Water Program, Flood Hazards, Flood Hazards, Flood Hazards, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Jamaica Bay NY, Nearshore Environmental Health, Nearshore Environmental Health, Nearshore Environmental Health, New York, Sediment, Sediment, Sediment, Superstorm Sandy, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Tide and Wave Hydrodynamics, Tide and Wave Hydrodynamics, Tide and Wave Hydrodynamics, Turbidity, Turbidity, Turbidity, USGS New York Water Science Center, WSC, Fewer tags Simulation and Analysis of the Effects of Land-Use Changes and Stormflow Detention Basins on Flooding and Nonpoint-Source Pollution, in Irondequoit Creek Basin, Monroe and Ontario Counties, New York Problem - Urbanization of the 150-square-mile Irondequoit Creek basin in Monroe and Ontario Counties, N.Y., continues to spread southward and eastward from the City of Rochester. Conversion of forested land to other uses over the past 40 years has increased to the extent that more than 50 percent of the basin is now developed. This expansion has increased flooding and impaired stream-water quality in the northern (downstream) half of the basin. A precipitation-runoff model of the Irondequoit Creek basin could be used as a management tool by water-resources managers to better understand the hydrology of the basin, permit simulation of planned or hypothetical land-use changes, evaluate the adverse effects of future... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate Change, Climate Change, Climate Change, Completed, Cooperative Water Program, All tags... Flood Science, Flood Science, Flood Science, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Irondequoit Creek, Monroe County, Ontario County, SW Model, SW Model, SW model, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Quality Monitoring, Surface-Water Quality Monitoring, Surface-Water-Quality Monitoring, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water Use and Availability Science, Water Use and Availability Science, Water-Quailty Modeling, Water-Quailty Modeling, Water-Quality Modeling, Fewer tags Surface-water quality in the Lake Erie/Niagara River Basin of New York State Problem The New York State Department of Environmental Conservation (NYSDEC) intends to develop a Nine-Element Watershed Plan (http://www.dec.ny.gov/chemical/103264.html) for the Lake Erie/Niagara Basin. To develop the Nine-Element Plan, NYSDEC needs a high quality, quality assured, nutrient-loading dataset to serve as a baseline against which future change can be measured and to identify areas in greatest need of water quality improvement. Objective and Scope The objective of this project is to collect baseline nutrient water-quality data that can be used to 1) build a watershed model that will help focus future water quality improvement efforts in the basin, and 2) aid in future regional target-setting efforts... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Ambient Monitoring, Cooperative Water Program, Groundwater and Streamflow Information, Surface-Water Monitoring, Surface-Water Monitoring, All tags... Surface-Water Quality Monitoring, Surface-Water-Quality Monitoring, USGS New York Water Science Center, WSC, Water Quality, Water quality, Fewer tags New York Water Science Center Data Program Objective: The USGS New York Water Science Center (NYWSC) works with other Federal agencies as well as with State, municipal, and tribal agencies to provide research and data about water-related issues. Relevance and Impact: The NYWSC leads the scientific and water-resources management communities by providing high-quality, timely, and unbiased scientific data, reports, and other information that are widely accessible and understandable and that benefit science interests of all levels of government, academia, nongovernmental organizations, the private sector, and the general public. Statement of Problem: The NYWSC studies the effects of weather, climate, and manmade influences on groundwater levels, streamflow (discharge),... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beach and Barrier Dynamics, Beach and Barrier Dynamics, Beach and Barrier dynamics, Coastal Science, Coastal Science, All tags... Cooperative Water Program, Ecosystem Health, Ecosystem Health, Geophysics, Geophysics, Groundwater Monitoring, Groundwater Monitoring, Groundwater Monitoring, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Groundwater-Quality Monitoring, Groundwater-Quality Monitoring, Groundwater-Quality Monitoring, Hydrogeologic Characterization, Hydrogeologic Characterization, Hydrogeologic Characterization, New York, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Quality Monitoring, Surface-Water Quality Monitoring, Surface-Water-Quality Monitoring, Tide and Wave Hydrodynamics, Tide and Wave Hydrodynamics, Tide and Wave Hydrodynamics, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water Quality, Water Use and Availability Science, Water quality, Water-Quailty Modeling, Water-Quailty Modeling, Water-Quality Modeling, Fewer tags High-Water Mark Elevations in Upstate New York from Flash Flooding during July 9-10, 2023 This data release contains results of a high-water mark survey across Upstate New York following flash flooding during July 9-10, 2023. The survey was conducted between July 12 and September 20, 2023 by U.S. Geological Survey (USGS) personnel, and is based on surveyed elevations of mud, debris, and seed lines (Koenig and others, 2016) left by the flooding. Real-time and static Global Navigation Satellite System (GNSS) surveying (Rydlund and Densmore, 2012), combined with differential leveling (Kenney, 2010), were used to determine high-water mark elevations at 186 locations. Additional data associated with the July 2023 flooding, such as photos of the survey locations, can be found in the USGS Flood Event Viewer,... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate Change, Climate Impacts, Flood Hazards, Flood Inundation, Flood Mitigation assessment, All tags... Flood Science, GW or SW, Groundwater and Streamflow Information, Hydrology, New York, Stormwater, Surface-Water Monitoring, USGS Science Data Catalog (SDC), Water, Water Resources, floods, high-water, high-water marks, inlandWaters, Fewer tags Hydrologic-Data Collection in the Five Boroughs of New York City Problem Previous hydrologic studies have indicated that there may be sufficient water resources underlying Queens, Kings, Richmond, New York, and Bronx Counties for use as a supplemental water supply in times of drought or other emergency. An extensive ground-water and surface-water monitoring program is necessary to provide a comprehensive hydrologic data set for use in ongoing and future ground-water investigations. Objective The project will provide a continuous hydrologic data set needed for resource assessment, planning, and protection. To meet this objective the U.S. Geological Survey (USGS), in cooperation with the New York City Department of Environmental Protection, maintains and operates a network of approximately... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate Impacts, Climate Impacts, Climate impacts, Contaminants, Emerging, Contaminants, Emerging, All tags... Contaminants, Microbial, Contaminants, Microbial, Contaminants, Natural, Contaminants, Natural, Contaminants, Organic, Contaminants, Organic, Contaminants, emerging, Contaminants, microbial, Contaminants, natural, Contaminants, organic, Cooperative Water Program, Drought, Drought, Drought, Energy Resources, Flood Inundation, Flood Inundation, Flood Inundation, GW or SW, GW or SW, GW or SW, Groundwater Monitoring, Groundwater Monitoring, Groundwater Monitoring, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Human Health Activities Program, Low Flow or Peak Flow, Low Flow or Peak Flow, Low flow or peak flow, New York, New York City, Real Time Monitoring, Saltwater Intrusion, Saltwater Intrusion, Saltwater intrusion, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Toxic Substance Hydrology, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water quality, Fewer tags Esopus Creek Sediment and Turbidity Study Background The Ashokan Reservoir is located in the Catskill Mountains of New York State and is part of New York City’s (NYC) water supply system. The NYC water-supply system is operated by the NYC Department of Environmental Protection (NYCDEP) under a filtration avoidance determination (FAD) issued by the New York State Department of Health. The Ashokan Reservoir watershed is 255 mi2 and is one of two reservoirs in the New York City Catskill Reservoir system and one of six reservoirs in the West-of-Hudson Catskill-Delaware system. The upper Esopus Creek is the primary tributary to the Ashokan Reservoir, with a 192 mi2 watershed from the source, Winnisook Lake, to the Ashokan Reservoir near Boiceville, NY. Suspended-sediment... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Environments, Groundwater and Streamflow Information, Groundwater and Streamflow Information, New York, Surface-Water Monitoring, All tags... Surface-Water Monitoring, Surface-Water Monitoring, USGS New York Water Science Center, Ulster County, WSC, Water Quality, Water Quality, Water quality, esopus,sediment., turbidity, Fewer tags 1 2 »