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LOCATION.--Lat 39°42'38.3", long 75°36'31.4", New Castle County, DE, Hydrologic Unit 02040205, on downstream side of bridge on James Street, at Newport and 7.5 mi upstream from the confluence with the Delaware River. DRAINAGE AREA.--Not determined. PERIOD OF RECORD.--November 1993 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, 2015, at datum 1.05 ft higher. 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, 8.41 ft, at datum then in use, October 30, 2012; minimum elevation, -5.55 ft, at datum then in use, March 6, 2007. COOPERATION.--Funding for the operation of this station is provided by the Delaware Geological Survey and the U.S. Geological Survey.
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7/28/2016 Notice to users - Water level data, beginning on 10/1/2015, at this site has been re-computed to reference the water level to NAVD88 datum. In order to convert historic water level data stored in NGVD29 datum to the current NAVD88 datum, users must apply known -1.05 ft datum shift, as calculated for this location using VERTCON.