USGS Water-Year Summary 2024
363018076295301 GA-076
Northern Atlantic Coastal Plain aquifer system
Quaternary System
LOCATION - Lat 36°30'18.09", long 76°29'53.14" referenced to North American Datum of 1983, Gates County, NC, Hydrologic Unit 03010205, in Great Dismal Swamp National Wildlife Refuge.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 4.90 ft. Upper casing diameter undefined; top of first opening 0 ft, bottom of last opening 4.9 ft.
DATUM - Land-surface datum is 21 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF CASING, 0.0 ft above land-surface datum, Mar. 12, 2015 to present.
PERIOD OF RECORD - September 2014 to current year.
GAGE - Electronic data logger and pressure transducer, 15-minute record interval.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, -1.93 ft above land-surface datum, Oct. 11, 2016; lowest recorded, 1.62 ft below land-surface datum, Sept. 25, 2015.