USGS Water-Year Summary 2024
392517076155201 HA Dd 117 MD
Northern Atlantic Coastal Plain aquifer system
Quaternary Alluvium
LOCATION - Lat 39°25'17.29", long 76°15'52.68" referenced to North American Datum of 1983, Harford County, MD, Hydrologic Unit 02060003,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 2 ft. Upper casing diameter undefined; top of first opening -4.25 ft, bottom of last opening 2 ft.
DATUM - Land-surface datum is 1.55 ft above North American Vertical Datum of 1988. Measuring point: Top of 4-inch plastic instrument shelter, 4.25 ft above land-surface datum, Feb. 21, 2018 to present.
PERIOD OF RECORD - February 23, 2018 to November 17, 2021.
GAGE -
For Water Years 2019 to 2022; records good.
Water-level measurements collected by U.S. Geological personnel.
EXTREMES FOR PERIOD OF RECORD -
Highest 2.94 feet above land surface datum on October 30, 2021, lowest 0.67
below land surface datum May 21, 2021.