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  • January 22, 2018 - USGS Water Data availability during lapse in Federal funding

    Due to a lapse in Federal funding, the U.S. Geological Survey must suspend those parts of its data collection and distribution processes requiring human intervention. However, automated reporting and serving of telemetered data will continue.

    Users may note some degradation in the quality and completeness of real-time streamflow, groundwater and water-quality data from some reporting stations due to the suspension of field calibrations and adjustments, especially as high flows occur, aquatic vegetation becomes dominant, or ice forms in high altitude streams. The USGS will continue to monitor some performance aspects of its network using a skeleton workforce.

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USGS 01491000 CHOPTANK RIVER NEAR GREENSBORO, MD

  Stream Site

DESCRIPTION:
Latitude 38°59'49.9",   Longitude 75°47'08.9"   NAD83
Caroline County, Maryland, Hydrologic Unit 02060005
Drainage area: 113 square miles
Datum of gage: 2.73 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1990-10-01  2018-01-23  
 Daily Data
    Temperature, water, degrees Celsius  1988-10-02  2012-05-09  1951 
    Discharge, cubic feet per second  1948-01-01  2018-01-22  25590 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2010-10-01  2012-05-09  1581 
    Suspended sediment concentration, milligrams per liter  1980-10-01  1991-09-29  4016 
    Suspended sediment discharge, short tons per day  1980-10-01  1991-09-29  4016 
 Daily Statistics 
    Temperature, water, degrees Celsius  2010-10-01  2012-05-09 529 
    Discharge, cubic feet per second  1948-01-01  2017-10-04 25480 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2010-10-01  2012-05-09 527 
    Suspended sediment concentration, milligrams per liter  1980-10-01  1991-09-29 4016 
    Suspended sediment discharge, short tons per day  1980-10-01  1991-09-29 4016 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2010-10  2012-05  
    Discharge, cubic feet per second  1948-01  2017-10  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2010-10  2012-05  
    Suspended sediment concentration, milligrams per liter  1980-10  1991-09  
    Suspended sediment discharge, short tons per day  1980-10  1991-09  
 Annual Statistics 
    Temperature, water, degrees Celsius  2011  2012  
    Discharge, cubic feet per second  1948  2018  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2011  2012  
    Suspended sediment concentration, milligrams per liter  1981  1991  
    Suspended sediment discharge, short tons per day  1981  1991  
 Peak streamflow 1948-01-14  2017-03-15  70 
 Field measurements 1948-01-15  2017-12-04  881 
 Field/Lab water-quality samples 1964-06-11  2018-01-18  1365 
 Water-Year Summary 2006  2017  12 
OPERATION:
Record for this site is maintained by the USGS Maryland Water Science Center
Email questions about this site to Maryland Water Science Center Water-Data Inquiries