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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.
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USGS Water-Year Summary 2024
383348076411301 PG Hf 40
Northern Atlantic Coastal Plain aquifer system
Upper Patapsco Aquifer In the Patapsco Formation
Upper Patapsco Aquifer In the Patapsco Formation
LOCATION - Lat 38°33'48.6", long 76°41'07.2" referenced to North American Datum of 1983, Prince George's County, MD, Hydrologic Unit 02060006, 0.4 mi. south of Eagle Harbor.
REVISIONS HISTORY - https://waterdata.usgs.gov/nwis/dv/?site_no=383348076411301: 1998.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 870 ft. Upper casing diameter 6 in; top of first opening 860 ft, bottom of last opening 870 ft. Drilled, observation, artesian well.
DATUM - Land-surface datum is 27.98 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of recorder shelter platform, 2.59 ft above land-surface datum, Aug. 4, 1993 to Aug. 22, 2019; Top of steel casing, 2.49 ft above land-surface datum, Aug. 22, 2019 to present.
PERIOD OF RECORD - December 1974 to current year.
GAGE - Water-level recorder. Maryland Groundwater-Level Monitoring Network observation well.
REMARKS - 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 graphic water-level recorder from December 1974 to July 1976. Equipped with digital water-level recorder--60-minute recorder interval from July 1976 to August 2019. Equipped with digital water-level recorder--15-minute recorder interval from August 2019 to current year. Water levels are affected by local and regional groundwater withdrawal.
Water level measurements by U.S. Geological Survey personnel. Equipped with graphic water-level recorder from December 1974 to July 1976. Equipped with digital water-level recorder--60-minute recorder interval from July 1976 to August 2019. Equipped with digital water-level recorder--15-minute recorder interval from August 2019 to current year. Water levels are affected by local and regional groundwater withdrawal.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 9.64 ft above sea level, (which is 18.34 ft Below Land Surface) January 11, 1975 (recorder); lowest measured, 53.93 ft below sea level, (which is 81.91 ft. Below Land Surface) March 12, 2016 (recorder).
