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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
383239076354201 CA Db 47
Northern Atlantic Coastal Plain aquifer system
Aquia Formation
Aquia Formation
LOCATION - Lat 38°32'36.8", long 76°35'40.8" referenced to North American Datum of 1983, Calvert County, MD, Hydrologic Unit 02060006, Prince Frederick.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 570 ft. Upper casing diameter 4 in; top of first opening 560 ft, bottom of last opening 570 ft. Drilled, observation, artesian well.
DATUM - Land-surface datum is 140.4 ft above National Geodetic Vertical Datum of 1929. Measuring point: unknown, 1.46 ft above land-surface datum, Jul. 31, 1979 to May. 10, 1990; Top of casing, 1.2 ft above land-surface datum, May. 16, 1990 to Oct. 28, 2003; Top of recorder shelter platform, 4.33 ft above land-surface datum, Nov. 19, 2003 to present.
PERIOD OF RECORD - July 1979 to current year.
GAGE - Water Years 2014-2023: records good.
Water Year 2013 and prior years accuracy statements can be found in Annual Water Data Reports.
Water-level measurements by U.S. Geological Survey personnel. Equipped with digital water-level recorder from October 2007 to current year. U.S. Geological Survey satellite data-collection platform at well. Missing record due to recorder malfunction.
Water-level measurements by U.S. Geological Survey personnel. Equipped with digital water-level recorder from October 2007 to current year. U.S. Geological Survey satellite data-collection platform at well. Missing record due to recorder malfunction.
REMARKS - Maryland Groundwater-Level Monitoring Network observation well. Water levels are affected by regional groundwater withdrawal.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 148.54 ft below land surface (8.14 ft below sea level), July 31, 1979. Lowest water level measured 221.12 ft below land surface (80.72 ft below sea level), September 17, 2016 (recorder)
