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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
380730075110401 WO Ef 30
Northern Atlantic Coastal Plain aquifer system
Sinepuxent Formation
Sinepuxent Formation
LOCATION - Lat 38°07'30.5", long 75°11'04.3" referenced to North American Datum of 1983, Worcester County, MD, Hydrologic Unit 02040303,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 52.4 ft. Upper casing diameter 2 in; top of first opening 47.4 ft, bottom of last opening 52.4 ft.
DATUM - Land-surface datum is 3.52 ft above North American Vertical Datum of 1988. Measuring point: Top of hole, 2.30 ft above land-surface datum, Sep. 30, 2014, to present.
PERIOD OF RECORD - September 2010 and October 2014 to September 2015.
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.
REMARKS - Well KM23 B Deep - Assateague sea level rise study.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 1.54 ft above sea level, February 13, 2015; lowest measured, 0.62 ft above sea level, May 31, 2015.
