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Water-Year Summary for Site 381452075075902

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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.
Available Parameters
62611 Elevation, GW, NAVD88(Mean,Min.,Max.)  

Water year 2021: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2021
381452075075902 WO Dg 30
Northern Atlantic Coastal Plain aquifer system
Sinepuxent Formation
LOCATION - Lat 38°14'52.0", long 75°07'59.0" referenced to North American Datum of 1983, Worcester County, MD, Hydrologic Unit 02040303,
WELL CHARACTERISTICS - Depth 16.8 ft. Upper casing diameter 2 in; top of first opening 11.8 ft, bottom of last opening 16.8 ft.
DATUM - Land-surface datum is 5.88 ft above North American Vertical Datum of 1988. Measuring point: Top of well cap, 2.39 ft above land-surface datum, Sep. 30, 2014, to present.
PERIOD OF RECORD - August 2010 to 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 KM09 B Shallow - Assateague sea level rise study.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 3.59 ft above sea level, April 14, 2015 (recorder); lowest measured, 1.49 ft above sea level, September 08, 2015 (recorder).