Hydrologist (Geol)
New York Water Science Center
Email:
fstumm@usgs.gov
Office Phone:
631-736-0783
Fax:
631-736-4283
ORCID:
0000-0002-5388-8811
Location
2045 Route 112
Bldg. 4
Coram
, NY
11727
US
Supervisor:
Ronald Busciolano
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Problem - The New York City Department of Environmental Protection (NYCDEP) is constructing or proposing water tunnels under New York City and areas of southeastern New York (Hudson River Basin). These tunnels can intersect faults and fractures that produce large amounts of ground water. For example, one tunnel excavation intersected fractures that produced over 200 gallons per minute of ground-water flow into the tunnel. Consequently, there is a need to determine the potential of intersecting ground-water producing fractures during tunnel excavation. The use of advanced borehole geophysical techniques by the USGS during tunnel excavations in northern Queens County demonstrated that geophysical techniques can...
Categories: Data,
Project;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Borehole Geophysics,
Completed,
Cooperative Water Program,
GW or SW,
GW or SW, All tags...
GW or SW,
Geophysics,
Geophysics,
Geophysics,
Groundwater Monitoring,
Groundwater Monitoring,
Groundwater Monitoring,
Groundwater and Streamflow Information,
Groundwater and Streamflow Information,
Groundwater-Flow Modeling,
Groundwater-Flow Modeling,
Groundwater-Flow Modeling,
Hydrogeologic Characterization,
Hydrogeologic Characterization,
Hydrogeologic Characterization,
New York,
New York City,
USGS New York Water Science Center,
WSC,
Water Use and Availability Science,
Water Use and Availability Science,
borehole,
groundwater,
rock fractures,
tunnels, Fewer tags
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The combination of a complex hydrogeologic framework, narrow land masses surrounded by saltwater, and extensive ground-water public-supply pumpage has produced localized areas of elevated chloride concentrations in ground water. This project uses advanced surface and borehole geophysical methods to determine the extent of saltwater intrusion and road-salt plumes at selected sites in eastern Suffolk County, Long Island, NY. Two-dimensional resistivity sections have been integrated with borehole geophysical logs and water-quality data to produce cross-sections of road-salt plumes. Borehole geophysical logs are collected twice a year to determine variations in chloride concentration and thicknesses of intrusive...
Categories: Data,
Project;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Borehole Geophysics,
Borehole Geophysics,
Borehole Geophysics,
Cooperative Water Program,
GW or SW, All tags...
GW or SW,
GW or SW,
Geophysics,
Geophysics,
Hydrogeologic Characterization,
Hydrogeologic Characterization,
Hydrogeologic Characterization,
New York,
Suffolk County,
USGS New York Water Science Center,
WSC,
borehole,
freshwater,
geophysics,
groundwater,
saltwater,
wells, Fewer tags
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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
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This data release contains data from five seismic-reflection surveys in New York’s East River between Governors Island and the Queensboro Bridge. Data are provided in the original proprietary data format, a SEGy data exchange format, and as a shape file of locations and depths to bedrock. Depths to bedrock were derived from the seismic signal travel time and an assumed speed of sound of 5,000 feet/second.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Aquifer Mapping,
Bedrock,
East River,
Geophysics,
Kings County, All tags...
New York,
New York County,
Seismic reflection methods,
Surface Geophysics,
USGS Science Data Catalog (SDC),
USGS:636bfbe2d34ed907bf6abaa9, Fewer tags
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Using a combination of public and proprietary historical construction test borings, recent exploration drilling, USGS observation wells, outcrops, and seismic measurements, a series of geospatial overlays for bedrock elevation and overburden thickness were created for the Five Boroughs of New York City, New York. Rasters were interpolated from a point elevation data set and refined using published and interpretive bedrock contours, and interpreted glacial valleys and faults. Contours for bedrock elevation were generated at 100-ft contour intervals and smoothed. This data release includes shapefiles containing the input point elevation features and output contours, and rasters of interpolated bedrock elevation and...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Aquifer Mapping,
Basin & Hydrogeologic Characterization,
Bedrock geologic units,
Bronx County,
Geospatial Applications, All tags...
Groundwater,
Kings County,
New York,
New York City,
New York County,
Queens County,
Richmond County,
USGS Science Data Catalog (SDC),
United States,
biota, Fewer tags
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