Click
to
hide
Water-Year
Summary
instructions
and
information
- 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
382407076260301 CA Fd 54
Northern Atlantic Coastal Plain aquifer system
Aquia Formation
Aquia Formation
LOCATION - Lat 38°24'08.1", long 76°26'04.6" referenced to North American Datum of 1983, Calvert County, MD, Hydrologic Unit 02060004, at Calvert Cliffs State Park.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 698 ft. Upper casing diameter 4 in; top of first opening 641 ft, bottom of last opening 651 ft. Drilled, observation, artesian well.
DATUM - Land-surface datum is 129.4 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF CASING, 1.9 ft above land-surface datum, Oct. 20, 1978 to Apr. 1, 1982; TOP OF FLANGE, 1.93 ft above land-surface datum, May. 3, 1982 to Feb. 2, 1984; TOP OF CASING, 2.18 ft above land-surface datum, Mar. 7, 1984 to Feb. 8, 1990; Top of casing, 1.92 ft above land-surface datum, Mar. 7, 1990 to Oct. 29, 2003; Top of recorder shelter platform, 3.1 ft above land-surface datum, Nov. 19, 2003 to present.
PERIOD OF RECORD - October 1978 to current year.
GAGE - Water Years 2014-2023: records are 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 March 2004 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 March 2004 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 local and regional groundwater withdrawal.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 21.26 ft below sea level (150.66 ft below land surface), October 20, 1978; lowest measured, 113.61 ft below sea level (243.01 ft below land surface), October 27, 2017 (recorder).
