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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  2024-07-24  
 Daily Data
    Temperature, water, degrees Celsius  1988-10-01  2012-05-09  1952 
    Temperature, water, degrees Celsius  2023-04-21  2024-07-23  1374 
    Discharge, cubic feet per second  1948-01-01  2024-07-23  27964 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2010-10-01  2012-05-09  1581 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2023-04-21  2024-07-23  1365 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2023-04-21  2024-07-23  1374 
    pH, water, unfiltered, field, standard units  2023-04-21  2024-07-23  1374 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2023-04-21  2024-07-23  1347 
    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 
    Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen  2023-08-02  2024-07-23  1056 
 Daily Statistics 
    Temperature, water, degrees Celsius  2010-10-01  2012-05-09 529 
    Temperature, water, degrees Celsius  2023-04-21  2024-02-05 289 
    Discharge, cubic feet per second  1948-01-01  2023-12-06 27734 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2010-10-01  2012-05-09 527 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2023-04-21  2024-02-05 286 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2023-04-21  2024-02-05 289 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2023-04-21  2024-02-05 280 
    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  
    Temperature, water, degrees Celsius  2023-04  2024-02  
    Discharge, cubic feet per second  1948-01  2023-12  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2010-10  2012-05  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2023-04  2024-02  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2023-04  2024-02  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2023-04  2024-02  
    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  
    Temperature, water, degrees Celsius  2023  2024  
    Discharge, cubic feet per second  1948  2024  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2011  2012  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2023  2024  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2023  2024  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2023  2024  
    Suspended sediment concentration, milligrams per liter  1981  1991  
    Suspended sediment discharge, short tons per day  1981  1991  
 Peak streamflow 1948-01-14  2023-04-29  76 
 Field measurements 1948-01-15  2024-05-21  952 
 Field/Lab water-quality samples 1964-06-11  2024-02-14  1512 
 Water-Year Summary 2006  2023  18 
 Revisions  Loading...
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