Continuous water quality gaging station located at Farm River at Farm River Marina near East Haven, Connecticut (USGS site ID 411513072512301). The station is placed on the floating dock.
Embayment Monitoring to Support Nutrient Management Activities in Connecticut for Long Island Sound Active
By New England Water Science Center
September 27, 2021
The USGS, in cooperation with the Connecticut Department of Energy and Environmental Protection will be collecting water-quality and hydrologic data at four embayments from April 2021 to March 2025: Mystic, Norwalk, Saugatuck, Sasco-Southport complex, and Farm.
Sources/Usage: Public Domain. View Media Details
The State of Connecticut continues to promote a comprehensive approach to managing the effects of nutrients on Long Island Sound and its coastal embayments. The USGS, in cooperation with the Connecticut Department of Energy and Environmental Protection, will be collecting water-quality and hydrologic data at five embayments across Long Island Sound: Mystic, Norwalk, Saugatuck, Sasco-Southport complex, and Farm. Data will be collected in these embayments for 2 years. Data collection began in the Mystic and Norwalk in May 2021 and ended April 2023. Data collection began in the Saugatuck and Sasco/Southport Harbor starting in May 2022 and will end April 2024. Data collection began in the Farm in April 2023 and will end March 2025. Discrete water-quality samples are collected at near surface and near bottom at multiple locations at various tidal cycles in each embayment. Discrete samples will be analyzed for nutrients, carbon, total suspended solids, silica, alkalinity, biological oxygen demand, and chlorophyll a. Selected sites will also have continuous water-quality monitoring at near surface and near bottom for water temperature, specific conductance, salinity, dissolved oxygen, turbidity, and chlorophyll a. USGS will also collect hydrologic data, such as velocity and stage, at selected locations in each embayment.
The objectives of the project are to (1) Obtain representative water‐quality data under a range of seasonal conditions to characterize the water quality spatially and vertically within each embayment. (2) Collect selected water‐quality data with high temporal resolution to provide time‐series data needed for water quality model calibration and evaluation. (3) Collect selected physical water‐quality data and velocity data at multiple locations in each embayment to provide spatial data needed for water quality model calibration and evaluation. Nutrient models for each embayment will be created based on the collected data which will help improve the understanding of physical and chemical processes of embayments in Long Island Sound.
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Data collection sites
| Site Number | Site Name |
| 411940071590300* | Mystic River at Ram Island Yacht Club at Noank, CT |
| 412141071580200* | Mystic River at Mystic Seaport near Mystic, CT |
| 412240071574700 | Mystic River US Rt I95 bridge near Old Mystic, CT |
| 412047071580800 | Mystic Harbor at Safe Harbor Marina near Mystic, CT |
| 412117071580800* | Mystic River at Rt. 1 bridge, CT |
| 410502073236000* | Norwalk Harbor at the Cove Marina near E Norwalk, CT |
| 410606073245700* | Norwalk River at Norwalk Aquarium near S Norwalk, CT |
| 410643073243700 | Norwalk River at Ferry Point, CT |
| 410729073171701* |
Mill River at Southport Harbor near Southport, CT (Buoy) |
| 410757073165601 |
Mill River at Pequot Yacht Club at Southport, CT |
| 410613073215801* |
Saugatuck River Lower Embayment near Saugatuck, CT (Buoy) |
| 410724073221001 |
Saugatuck River US Route 136 near Saugatuck, CT |
| 411513072512301* | Farm River at Farm River Marina NR East Haven, CT |
| 411532072510801* | Farm River at Route 142 Bridge Near East Haven, CT |
| 411626072514501* | Farm River at the Trolly Museum at East Haven, CT |
* Real-time site
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Sources/Usage: Public Domain. View Media Details
Continuous water quality station
Continuous water quality gaging station located at Farm River at Farm River Marina near East Haven, Connecticut (USGS site ID 411513072512301). The station is placed on the floating dock.
Continuous water quality gaging station
Continuous water quality gaging station located at Farm River at Trolley Museum at East Haven, Connecticut (USGS site ID 411626072514501).
Continuous water quality gaging station located at Farm River at Trolley Museum at East Haven, Connecticut (USGS site ID 411626072514501).
USGS crew deploying Southport Buoy
USGS crew deployed this buoy platform with connected water quality equipment in Southport Harbor, CT in May 2022.
USGS crew deployed this buoy platform with connected water quality equipment in Southport Harbor, CT in May 2022.
USGS crew servicing water-quality monitors
USGS crew servicing water-quality monitors at Saugatuck Rowing Club, Connecticut.
USGS crew servicing water-quality monitors at Saugatuck Rowing Club, Connecticut.
USGS buoy platform with water quality equipment
USGS deployed this buoy platform with connected water quality equipment in Saugatuck Harbor, CT in May 2022.
USGS deployed this buoy platform with connected water quality equipment in Saugatuck Harbor, CT in May 2022.
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)
Hydrologic technician servicing continuous water quality monitor at Mystic River US Route I-95 Bridge near Old Mystic, Connecticut, (USGS site ID 412240071574700)
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 at Mystic Harbor at Safe Harbor Marina near Mystic, Connecticut (USGS site ID 412240071580800)
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
Hydrologic technicians collecting discrete water quality samples at Norwalk River at Ferry Point near Norwalk, Connecticut (USGS Site ID 410643073243700)
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 at Norwalk Harbor, Connecticut
Continuous water quality gaging station located at Norwalk Harbor at the Cove Marina near East Norwalk, Connecticut (USGS site ID 410502073236000)
Continuous water quality gaging station located at Norwalk Harbor at the Cove Marina near East Norwalk, Connecticut (USGS site ID 410502073236000)
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)
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 station
Installation of continuous water quality gaging station at Mystic River at RAM Island Yacht Club at Noank, Connecticut (USGS site ID 411940071590300)
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 located at Mystic River at Rt. 1 bridge, Connecticut (USGS Site ID 412117071580800)
Continuous stage only gaging station located at Mystic River at Rt. 1 bridge, Connecticut (USGS Site ID 412117071580800)
- Overview
The USGS, in cooperation with the Connecticut Department of Energy and Environmental Protection will be collecting water-quality and hydrologic data at four embayments from April 2021 to March 2025: Mystic, Norwalk, Saugatuck, Sasco-Southport complex, and Farm.
Sources/Usage: Public Domain. View Media DetailsContinuous 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.
The State of Connecticut continues to promote a comprehensive approach to managing the effects of nutrients on Long Island Sound and its coastal embayments. The USGS, in cooperation with the Connecticut Department of Energy and Environmental Protection, will be collecting water-quality and hydrologic data at five embayments across Long Island Sound: Mystic, Norwalk, Saugatuck, Sasco-Southport complex, and Farm. Data will be collected in these embayments for 2 years. Data collection began in the Mystic and Norwalk in May 2021 and ended April 2023. Data collection began in the Saugatuck and Sasco/Southport Harbor starting in May 2022 and will end April 2024. Data collection began in the Farm in April 2023 and will end March 2025. Discrete water-quality samples are collected at near surface and near bottom at multiple locations at various tidal cycles in each embayment. Discrete samples will be analyzed for nutrients, carbon, total suspended solids, silica, alkalinity, biological oxygen demand, and chlorophyll a. Selected sites will also have continuous water-quality monitoring at near surface and near bottom for water temperature, specific conductance, salinity, dissolved oxygen, turbidity, and chlorophyll a. USGS will also collect hydrologic data, such as velocity and stage, at selected locations in each embayment.
The objectives of the project are to (1) Obtain representative water‐quality data under a range of seasonal conditions to characterize the water quality spatially and vertically within each embayment. (2) Collect selected water‐quality data with high temporal resolution to provide time‐series data needed for water quality model calibration and evaluation. (3) Collect selected physical water‐quality data and velocity data at multiple locations in each embayment to provide spatial data needed for water quality model calibration and evaluation. Nutrient models for each embayment will be created based on the collected data which will help improve the understanding of physical and chemical processes of embayments in Long Island Sound.
Sources/Usage: Public Domain. View Media DetailsLocations of Norwalk embayment monitoring sites in Connecticut.
Sources/Usage: Public Domain. View Media DetailsLocations of Mystic embayment monitoring sites in Connecticut.
Sources/Usage: Public Domain. View Media DetailsLocations of Saugatuck embayment monitoring sites in Connecticut.
Sources/Usage: Public Domain. View Media DetailsLocations of Southport embayment monitoring sites in Connecticut.
Sources/Usage: Public Domain. View Media DetailsLocations of Farm River embayment monitoring sites in Connecticut. Data collection sites
Site Number Site Name 411940071590300* Mystic River at Ram Island Yacht Club at Noank, CT 412141071580200* Mystic River at Mystic Seaport near Mystic, CT 412240071574700 Mystic River US Rt I95 bridge near Old Mystic, CT 412047071580800 Mystic Harbor at Safe Harbor Marina near Mystic, CT 412117071580800* Mystic River at Rt. 1 bridge, CT 410502073236000* Norwalk Harbor at the Cove Marina near E Norwalk, CT 410606073245700* Norwalk River at Norwalk Aquarium near S Norwalk, CT 410643073243700 Norwalk River at Ferry Point, CT 410729073171701* Mill River at Southport Harbor near Southport, CT (Buoy)
410757073165601 Mill River at Pequot Yacht Club at Southport, CT
410613073215801* Saugatuck River Lower Embayment near Saugatuck, CT (Buoy)
410724073221001 Saugatuck River US Route 136 near Saugatuck, CT
411513072512301* Farm River at Farm River Marina NR East Haven, CT 411532072510801* Farm River at Route 142 Bridge Near East Haven, CT 411626072514501* Farm River at the Trolly Museum at East Haven, CT * Real-time site
Sources/Usage: Public Domain. View Media DetailsContinuous water quality gaging station located at Norwalk River at Norwalk Aquarium near South Norwalk, Connecticut (USGS site ID 410606073245700).
Sources/Usage: Public Domain. View Media DetailsInstallation of continuous water quality gaging station at Mystic River at RAM Island Yacht Club at Noank, Connecticut (USGS site ID 411940071590300).
Sources/Usage: Public Domain. View Media DetailsUSGS deployed this buoy platform with connected water quality equipment in Saugatuck Harbor, CT in May 2022.
Sources/Usage: Public Domain. View Media DetailsContinuous water quality gaging station located at Norwalk Harbor at the Cove Marina near East Norwalk, Connecticut (USGS site ID 410502073236000)
Sources/Usage: Public Domain. View Media DetailsContinuous water quality gaging station located at Farm River at Trolley Museum at East Haven, Connecticut (USGS site ID 411626072514501).
Sources/Usage: Public Domain. View Media DetailsContinuous water quality gaging station located at Farm River at Farm River Marina near East Haven, Connecticut (USGS site ID 411513072512301). The station is placed on the floating dock. - Multimedia
Continuous water quality station
Continuous water quality gaging station located at Farm River at Farm River Marina near East Haven, Connecticut (USGS site ID 411513072512301). The station is placed on the floating dock.
Continuous water quality gaging station located at Farm River at Farm River Marina near East Haven, Connecticut (USGS site ID 411513072512301). The station is placed on the floating dock.
Continuous water quality gaging stationContinuous water quality gaging station located at Farm River at Trolley Museum at East Haven, Connecticut (USGS site ID 411626072514501).
Continuous water quality gaging station located at Farm River at Trolley Museum at East Haven, Connecticut (USGS site ID 411626072514501).
USGS crew deploying Southport BuoyUSGS crew deployed this buoy platform with connected water quality equipment in Southport Harbor, CT in May 2022.
USGS crew deployed this buoy platform with connected water quality equipment in Southport Harbor, CT in May 2022.
USGS crew servicing water-quality monitorsUSGS crew servicing water-quality monitors at Saugatuck Rowing Club, Connecticut.
USGS crew servicing water-quality monitors at Saugatuck Rowing Club, Connecticut.
USGS buoy platform with water quality equipmentUSGS deployed this buoy platform with connected water quality equipment in Saugatuck Harbor, CT in May 2022.
USGS deployed this buoy platform with connected water quality equipment in Saugatuck Harbor, CT in May 2022.
Hydrologic technician servicing continuous water quality monitorHydrologic technician servicing continuous water quality monitor at Mystic River US Route I-95 Bridge near Old Mystic, Connecticut, (USGS site ID 412240071574700)
Hydrologic technician servicing continuous water quality monitor at Mystic River US Route I-95 Bridge near Old Mystic, Connecticut, (USGS site ID 412240071574700)
Servicing continuous water quality monitorHydrologic 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 at Mystic Harbor at Safe Harbor Marina near Mystic, Connecticut (USGS site ID 412240071580800)
Continuous water quality stationContinuous 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 samplesHydrologic technicians collecting discrete water quality samples at Norwalk River at Ferry Point near Norwalk, Connecticut (USGS Site ID 410643073243700)
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 at Norwalk Harbor, ConnecticutContinuous water quality gaging station located at Norwalk Harbor at the Cove Marina near East Norwalk, Connecticut (USGS site ID 410502073236000)
Continuous water quality gaging station located at Norwalk Harbor at the Cove Marina near East Norwalk, Connecticut (USGS site ID 410502073236000)
Continuous water quality gaging stationContinuous water quality gaging station located at Norwalk River at Norwalk Aquarium near South Norwalk, Connecticut (USGS site ID 410606073245700)
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 stationInstallation of continuous water quality gaging station at Mystic River at RAM Island Yacht Club at Noank, Connecticut (USGS site ID 411940071590300)
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 stationContinuous stage only gaging station located at Mystic River at Rt. 1 bridge, Connecticut (USGS Site ID 412117071580800)
Continuous stage only gaging station located at Mystic River at Rt. 1 bridge, Connecticut (USGS Site ID 412117071580800)
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