USGS staffers Dan Edwards and Gary Wall attach a hydroacoustic and turbidity equipment package to a tripod for deployment on the bottom of the Hudson River near Poughkeepsie, NY
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Deploying hydroacoustic and turbidity equipment on the Hudson R
USGS staffers Dan Edwards and Gary Wall attach a hydroacoustic and turbidity equipment package to a tripod for deployment on the bottom of the Hudson River near Poughkeepsie, NY
Drought - Schoharie Reservoir 2001
Drought - Schoharie Reservoir 2001
Drought - Schoharie Reservoir 2001
Stream in the Catskill Mountians, NY
first order stream in the Catskill Mountains
first order stream in the Catskill Mountains
Collecting Soil Samples
Collecting soil samples
Batavia Kill at Red Falls, Greene County, NY
Batavia Kill at Red Falls, Greene County, NY
Batavia Kill at Red Falls, Greene County, NY
Batavia Kill, Greene County, NY
Batavia Kill, Greene County, NY
Batavia Kill, Greene County, NY
Water sampling in tidal marsh on Long Island
USGS scientists taking water samples in the tidal marsh on Long Island.
USGS scientists taking water samples in the tidal marsh on Long Island.
Groundwater sampling array
Groundwater sampling array at the Toxics Substances research site, Cape Cod, Massachusetts
Groundwater sampling array at the Toxics Substances research site, Cape Cod, Massachusetts
Groundwater sampling
Groundwater sampling on Long Island
Long Island core samples
Long Island core samples
Long Island core samples
Groundwater Sampling on Long Island
Groundwater sampling for water quality on Long Island, New York
Groundwater sampling for water quality on Long Island, New York
Antibiotics in Groundwater Tracer Injection
U.S. Geological Survey (USGS) scientists conducted a unique study, which demonstrated that the ecology of natural groundwater bacteria changed after exposure of the bacteria to the antibiotic sulfamethoxazole (SMX).
U.S. Geological Survey (USGS) scientists conducted a unique study, which demonstrated that the ecology of natural groundwater bacteria changed after exposure of the bacteria to the antibiotic sulfamethoxazole (SMX).
Aerial view of Assateague Island
Aerial view of Assateague Island, looking north. Ocean City, Maryland, is visible in the far distance at top. Sinepuxent Bay lies between the island’s western shore and the Delmarva Peninsula to the upper left. Photograph taken in 1998
Aerial view of Assateague Island, looking north. Ocean City, Maryland, is visible in the far distance at top. Sinepuxent Bay lies between the island’s western shore and the Delmarva Peninsula to the upper left. Photograph taken in 1998
Lewy Lake Station 01019300
USGS lake elevation gage on Lewy Lake at Princeton, Maine, station 01019300.
USGS lake elevation gage on Lewy Lake at Princeton, Maine, station 01019300.
Kennebec River at The Forks
The view of the river from the USGS gaging station on the Kennebec River at The Forks, station 01042500.
The view of the river from the USGS gaging station on the Kennebec River at The Forks, station 01042500.
Spednic Lake Sunrise
Sunrise on the shore of Spednic Lake before heading out on the lake to collect data for a study.
Sunrise on the shore of Spednic Lake before heading out on the lake to collect data for a study.
Kenduskeag Stream
Six Mile Falls on Kenduskeag Stream at USGS station 01037000.
Six Mile Falls on Kenduskeag Stream at USGS station 01037000.
Connecticut River, Holyoke Dam during flood of March 1936
Connecticut River Holyoke Dam, Holyoke Water Power Company, during flood of March 1936.
Connecticut River Holyoke Dam, Holyoke Water Power Company, during flood of March 1936.