USGS Water-Year Summary 2024
391303075460801 AND-DR-W-5S
Northern Atlantic Coastal Plain aquifer system
Columbia Group
LOCATION - Lat 39°13'03.1", long 75°46'08.4" referenced to North American Datum of 1983, Queen Anne's County, MD, Hydrologic Unit 02060002, Andover Branch.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 15 ft. Upper casing diameter 2 in; top of first opening 12 ft, bottom of last opening 15 ft. Drilled observation well.
DATUM - Land-surface datum is 52 ft above North American Vertical Datum of 1988. Measuring point: Center of bolt, 1.90 ft above land-surface datum, June 17, 2014, to present.
PERIOD OF RECORD - January 9, 2014 to March 22, 2016 (discontinued).
GAGE -
Water Years 2014-2016: Records good.
Water-level measurements by U.S. Geological Survey personnel. Equipped with water-level data logger -- 15-minute recording interval, June 2014 to March 2016.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 6.62 ft below land surface, March 17, 2015 (recorder); lowest water level measured, 10.83 ft below land surface, October 10 and 11, 2014 (recorder).