USGS Water-Year Summary 2024
382154076574801 CH Ee 70
Northern Atlantic Coastal Plain aquifer system
Lower Patapsco Aquifer In the Patapsco Formation
LOCATION - Lat 38°21'50.9", long 76°57'37.0" referenced to North American Datum of 1983, Charles County, MD, Hydrologic Unit 02070011, 1.5 mi. north of Morgantown.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 1,132 ft. Upper casing diameter 2 in; top of first opening 1,090 ft, bottom of last opening 1,115 ft. Drilled, observation, artesian well.
DATUM - Land-surface datum is 22.83 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of recorder shelter platform, 3.43 ft above land-surface datum, Oct. 1, 1974 to Apr. 21, 2021; Top of Casing Flange, 3.36 ft above land-surface datum, Apr. 21, 2021 to present.
PERIOD OF RECORD - October 1974 to current year.
GAGE - Water-level measurements by U.S. Geological Survey personnel. Equipped with graphic water-level recorder from May 1982 to January 1983. Equipped with digital water-level recorder--15 and 30-minute recorder intervals from June 1978 to October 1992, May 1995 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 72.57 ft. below land surface, or 49.74 ft below sea level, April 14, 1981 (Discrete); lowest measured, 173.48 ft. below land surface. or 150.65 ft. below sea level, January 9, 2018 (recorder).