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Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.
ICE EFFECTS ON STREAMFLOW -- During cold weather, stage and discharge values may be affected by ice at some streamgages. Streamgages experiencing ice conditions will have the discharge record temporarily disabled to prevent the display of erroneous discharge values. Display of discharge record will resume when it is determined that ice conditions are no longer present. Adjustment of data affected by ice can only be done after detailed analysis.
LOCATION.--Lat 39°42'56.7", long 75°38'23.8", New Castle County, DE, Hydrologic Unit 02040205, on right bank at downstream side of westbound lane of bridge on State Highway 4, near Stanton, and 0.9 mi upstream from mouth. DRAINAGE AREA.--52.4 mi2. PERIOD OF RECORD.--October 1988 to current year. REVISIONS HISTORY.--WDR MD-DE-DC-04-1: 2003 (P). GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is -1.12 ft above North American Vertical Datum of 1988. REMARKS.--Low flows augmented at times by inflow from Hoopes Reservoir located 5.7 mi upstream from gage on unnamed tributary to Red Clay Creek, capacity 2,000,000,000 gal. Water from Brandywine Creek is pumped into Hoopes Reservoir and is then released into Red Clay Creek during periods of low flow. Water from Red Clay Creek is used for municipal supply. U.S. Geological Survey satellite data-collection platform at station. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 17,400 ft3/s, Sep. 15, 2003, gage height, 25.52 ft; minimum discharge, 6.8 ft3/s, Sep. 12, 2002. COOPERATION.--Funding for the operation of this station is provided by the Delaware Geological Survey, and the U.S. Geological Survey. CRITICAL LEVELS.--Action stage: 16.0 ft; Flood stage: 17.0 ft; information provided by the National Weather Service.
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