Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • 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.

  • Please see news on new formats
  • Full News RSS icon

USGS 01490140 LITTLE BLACKWATER RIVER AT SEWARD, MD

  Stream Site

DESCRIPTION:
Latitude 38°26'43",   Longitude 76°05'02"   NAD83
Dorchester County, Maryland, Hydrologic Unit 02060007
Drainage area: 30.2 square miles
Datum of gage: 5.0 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2006-11-07  2010-09-30  
 Daily Data
    Temperature, water, degrees Celsius  2006-11-07  2010-12-31  4500 
    Gage height, feet  2007-10-01  2010-12-31  2330 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2006-11-07  2010-12-31  4485 
    Discharge, tidally filtered, cubic feet per second  2006-11-09  2010-12-31  1292 
 Daily Statistics 
    Temperature, water, degrees Celsius  2006-11-07  2010-12-31 1499 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2006-11-07  2010-12-31 1493 
    Discharge, tidally filtered, cubic feet per second  2006-11-09  2010-12-31 1292 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2006-11  2010-12  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2006-11  2010-12  
    Discharge, tidally filtered, cubic feet per second  2006-11  2010-12  
 Annual Statistics 
    Temperature, water, degrees Celsius  2007  2011  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2007  2011  
    Discharge, tidally filtered, cubic feet per second  2007  2011  
 Field measurements 2006-10-25  2010-09-21  191 
 Field/Lab water-quality samples 2006-06-22  2008-06-10  10 
 Water-Year Summary 2006  2011  6 
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