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USGS 01194796 CONNECTICUT RIVER AT OLD LYME, CT

  Estuary Site

DESCRIPTION:
Latitude 41°18'45",   Longitude 72°20'47"   NAD27
Lower Connecticut River Valley Planning Region County, Connecticut, Hydrologic Unit 010802050905
Drainage area: 11,224.0 square miles
Datum of gage: -1.01 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2025-12-15  
 Daily Data
    Temperature, water, degrees Celsius -- Top  2009-05-14  2020-01-08  11572 
    Temperature, water, degrees Celsius -- Bottom  2009-05-14  2020-09-29  12457 
    Gage height, feet  2001-10-01  2025-12-15  25262 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Top  2009-05-14  2020-01-08  11559 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Bottom  2009-05-14  2020-09-29  12239 
    Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius -- Top  2009-05-14  2020-01-08  11538 
    Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius -- Bottom  2009-05-14  2020-01-08  11418 
 Daily Statistics 
    Temperature, water, degrees Celsius -- Top  2009-05-14  2020-01-08 3857 
    Temperature, water, degrees Celsius -- Bottom  2009-05-14  2020-09-29 4152 
    Gage height, feet  2003-10-01  2025-08-05 7873 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Top  2009-05-14  2020-01-08 3852 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Bottom  2009-05-14  2020-09-29 4079 
    Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius -- Top  2009-05-14  2020-01-08 3846 
    Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius -- Bottom  2009-05-14  2020-01-08 3806 
 Monthly Statistics 
    Temperature, water, degrees Celsius -- Top  2009-05  2020-01  
    Temperature, water, degrees Celsius -- Bottom  2009-05  2020-09  
    Gage height, feet  2003-10  2025-08  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Top  2009-05  2020-01  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Bottom  2009-05  2020-09  
    Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius -- Top  2009-05  2020-01  
    Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius -- Bottom  2009-05  2020-01  
 Annual Statistics 
    Temperature, water, degrees Celsius -- Top  2009  2020  
    Temperature, water, degrees Celsius -- Bottom  2009  2020  
    Gage height, feet  2004  2025  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Top  2009  2020  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius -- Bottom  2009  2020  
    Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius -- Top  2009  2020  
    Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius -- Bottom  2009  2020  
 Peak streamflow 2008-12-12  2011-08-28  3 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 2019-06-26  2024-03-04  229 
 Water-Year Summary 2006  2024  19 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Connecticut Water Science Center
Email questions about this site to Connecticut Water Science Center Water-Data Inquiries