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

Page Loading - Please Wait...

Click to hideNews Bulletins
Click to hide state-specific text

! We're replacing this page with a Next Generation Monitoring Location Page.
We're modernizing Water Data for the Nation delivery. Find out what this means for you. This page will be discontinued July 2023.



Click to hidestation-specific text

LOCATION.--Lat 38°35'29.5", long 75°12'41.7", Sussex County, DE, Hydrologic Unit 02040303, on left bank
   attached to a privately-owned fishing pier, at Seals Point, 1.9 mi west of Oak Orchard.
DRAINAGE AREA.--Not determined.
PERIOD OF RECORD.--April 1991 to current year.
GAGE.--Water-stage recorder. Datum of gage is 0.00 ft above North American Vertical Datum of 1988 (NAVD88).
   Prior to October 1, 2014, at datum 0.78 ft higher (0.00 ft above NGVD29). 
REMARKS.--This is a tidal station. Discharge is not determined at this location. U.S. Geological
   Survey satellite data-collection platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 6.99 ft, NGVD29 (6.21 ft, NAVD88), Feb. 5, 1998;
   minimum elevation, -3.53 ft, NAVD88, March 15, 2017.
EXTREMES OUTSIDE PERIOD OF RECORD.--Storm of March 1962 reached an elevation of 6.73 ft, NGVD29 (5.95 ft, NAVD88),
   from floodmark.
COOPERATION.--Funding for this station is provided by the Delaware Department of Natural Resources and
   Environmental Control through the Delaware Geological Survey, and the Delaware Department of Transportation.
CRITICAL LEVELS.--Top of pier; 2.72 ft, NAVD88, information provided by U.S. Geological Survey.
Note - In order to convert historic water level data stored in NGVD29 datum to the current NAVD88 datum
users must apply the known -0.78 ft datum shift, as calculated for this location using VERTCON.
This station managed by the MD-DE-DC Water Science Center Dover office.

Available Parameters Available Period
2007-10-01  2014-10-01
2014-10-01  2022-09-27


  -- or --



Summary of all available data for this site
Instantaneous-data availability statement

Estuary or ocean water surface elevation above NAVD 1988, feet

Most recent instantaneous value: 1.50 09-27-2022   21:36 EDT
Graph of  Estuary or ocean water surface elevation above NAVD 1988, feet

Add up to 2 more sites and replot for "Estuary or ocean water surface elevation above NAVD 1988, feet"


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages