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Explore images of USGS science activities in Long Island Sound and its watershed.

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Hydrologic Technician servicing continuous water quality monitor
Servicing continuous water quality monitor
Servicing continuous water quality monitor
Servicing continuous water quality monitor

Hydrologic technician servicing continuous water quality monitor at Mystic Harbor at Safe Harbor Marina near Mystic, Connecticut (USGS site ID 412240071580800)

Hydrologic Technician servicing continuous water quality monitor
Hydrologic technician servicing continuous water quality monitor
Hydrologic technician servicing continuous water quality monitor
Hydrologic technician servicing continuous water quality monitor

Hydrologic technician servicing continuous water quality monitor at Mystic River US Route I-95 Bridge near Old Mystic, Connecticut, (USGS site ID 412240071574700)

Continuous water quality station on the Mystic River at the Mystic Seaport, Mystic CT
Continuous water quality station
Continuous water quality station
Continuous water quality station

Continuous water quality station on the Mystic River at the Mystic Seaport, Mystic Connecticut (Site ID 412141071580200). Setup includes top and bottom multiparameter sondes and velocity uplooker.

Continuous water quality station on the Mystic River at the Mystic Seaport, Mystic Connecticut (Site ID 412141071580200). Setup includes top and bottom multiparameter sondes and velocity uplooker.

Collecting discrete water quality samples
Collecting discrete water quality samples
Collecting discrete water quality samples
Collecting discrete water quality samples

Hydrologic technicians collecting discrete water quality samples at Norwalk River at Ferry Point near Norwalk, Connecticut (USGS Site ID 410643073243700)

Continuous water quality gaging station
Continuous water quality gaging station
Continuous water quality gaging station
Continuous water quality gaging station

Continuous water quality gaging station located at Norwalk River at Norwalk Aquarium near South Norwalk, Connecticut (USGS site ID 410606073245700)

Installation of continuous water quality gaging station
Installation of continuous water quality station
Installation of continuous water quality station
Installation of continuous water quality station

Installation of continuous water quality gaging station at Mystic River at RAM Island Yacht Club at Noank, Connecticut (USGS site ID 411940071590300)

Continuous stage only gaging station
Continuous stage only gaging station
Continuous stage only gaging station
Continuous stage only gaging station

Continuous stage only gaging station located at Mystic River at Rt. 1 bridge, Connecticut (USGS Site ID 412117071580800)

Average ice conditions, station 01194000, Eight Mile River at North Plain, Connecticut
Ice conditions at the streamgage location
Ice conditions at the streamgage location
Ice conditions at the streamgage location

U.S. Geological Survey station 01194000, Eight Mile River at North Plain, Connecticut, February 4, 2021.

Jennifer Lafayette sampling at 01208990 Saugatuck River in Redding, CT
Sampling at streamgage location
Sampling at streamgage location
Sampling at streamgage location

USGS hydrologic technician sampling at 01208990 Saugatuck River in Redding, CT streamgage location.

Streamgage during a grey, snowy day
Shetucket River Streamgage in Connecticut
Shetucket River Streamgage in Connecticut
Shetucket River Streamgage in Connecticut

Taftville stream​gage (011230695​​) on the Shetucket River, Connecticut during a grey, snowy day​​​.​

A river with snow covered banks
A river with snow covered banks
A river with snow covered banks
A river with snow covered banks

Bunnel Brook at USGS streamgage 01188000 near Burlington, Connecticut with snow covered banks flowing during the winter.

Connecticut River landscape
Connecticut River landscape
Connecticut River landscape
Connecticut River landscape

A vibrant photograph of the Connecticut River and surrounding landscape. The River is bordered by farm fields with mountains in the distance. The image was taken from Mount Sugarloaf in South Deerfield, MA​.​

A vibrant photograph of the Connecticut River and surrounding landscape. The River is bordered by farm fields with mountains in the distance. The image was taken from Mount Sugarloaf in South Deerfield, MA​.​

Groundwater site inspection, Petersham, Massachusetts
Groundwater site inspection, Petersham, Massachusetts
Groundwater site inspection, Petersham, Massachusetts
Groundwater site inspection, Petersham, Massachusetts

Shown in this photo is Hydrologic Technician Sam Banas performing an electric tape down measurement of a groundwater well. The site ID is: 422906072124301 MA-PHW 16 Petersham, MA

Mount Tom, Holyoke, Massachusetts
Mount Tom, Holyoke, MA
Mount Tom, Holyoke, MA
Mount Tom, Holyoke, MA

Mount Tom Range and is located in the Connecticut River Valley region of Massachusetts, north of the city of Springfield. Mount Tom features wonderful views of the Pioneer Valley in west-central Massachusetts. 

Mount Tom Range and is located in the Connecticut River Valley region of Massachusetts, north of the city of Springfield. Mount Tom features wonderful views of the Pioneer Valley in west-central Massachusetts. 

A hydrologist installs a storm-tide sensor to a piling in a river next to a pier.
Storm-tide sensor installation before Hurricane Sandy
Storm-tide sensor installation before Hurricane Sandy
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