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Active Tidal-Height Gaging Stations, Listed in Downstream Order

As of May 1, 2007

The following continuous-record stations in Maryland, Delaware, and the District of Columbia are active. Included are streamflow gaging stations and tidal height gaging stations. Daily streamflow records (discharge) have been collected and published for the period of record, expressed in water years, shown for each station. Tidal height data are collected to assist USGS and cooperating agencies in making hydrologic analyses, but are generally not published. Water Years are defined as the period October 1 through September 30. For example, the Water Year 2007 is defined as October 1, 2006 through September 30, 2007.

A list of active surface-water discharge stations can be found at http://md.water.usgs.gov/data/sw_active.html.
A list of discontinued surface-water discharge stations can be found at http://md.water.usgs.gov/data/sw_disc.html.

NORTH ATLANTIC SLOPE BASINS

                                                                 Period
                                                   Station         of
                                                   number        record

DELAWARE RIVER BASIN

Delaware River:
  Christina River at Newport, DE ..................01480065     1993-Present
  Christina River at Wilmington, DE ...............01480120     2006-Present
Delaware River below Christina River 
    at Wilmington, DE .............................01481602     1983-1991
                                                                1994-Present

MURDERKILL RIVER BASIN

Murderkill River at Bowers Beach, DE ..............01484085     1966-1990
                                                                1997-Present

INDIAN RIVER BASIN

Indian River at Rosedale Beach, DE ................01484540     1992-Present
Rehoboth Bay at Dewey Beach, DE ...................01484670     1985-1997
                                                                2000-Present
Indian River Bay at Indian River Inlet
  near Bethany Beach, DE ..........................01484683     1992-Present
Jefferson Creek at South Bethany, DE ..............01484696     1999-Present

ASSAWOMAN BAY BASIN

Little Assawoman Bay at Fenwick Island, DE ........01484701     1999-Present

NANTOCOKE RIVER BASIN

Nanticoke River at Sharptown, MD ..................01488110     1991-1995
                                                                2004-Present

POTOMAC RIVER BASIN

Potomac River at Wisconsin Ave. 
  at Washington, DC ...............................01647600     1935-Present
Anacostia River Aquatic Gardens at Washington, DC .01651750     2004-Present
Potomac River near Newburg, MD ....................01660795     2006-Present

List of active surface-water discharge stations.
List of discontinued surface-water discharge stations.

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