USGS Water-Year Summary 2024
381428075081401 WO Dg 23
Northern Atlantic Coastal Plain aquifer system
Beaverdam Sand
LOCATION - Lat 38°14'28.3", long 75°08'10.9" referenced to North American Datum of 1983, Worcester County, MD, Hydrologic Unit 02040303, at Assateague Island State Park.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 85 ft. Upper casing diameter 2 in; top of first opening 82 ft, bottom of last opening 85 ft. Drilled, observation, water table well.
DATUM - Land-surface datum is 4.45 ft above North American Vertical Datum of 1988. Measuring point: Top of well cap, 3.04 ft above land-surface datum, Sep. 30, 2014 to present.
PERIOD OF RECORD - October 1999 to current year.
GAGE - For 2015 Water Year, records fair. Water-level measurements by U.S. Geological Survey personnel. Equipped with non vented pressure sensor with 6 minute recording interval, October 2014 to September 2015.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 1.84 ft below land surface, December 9, 2014 (Recorder); lowest measured, 5.41 ft below land surface, July 24, 2007.