USGS Water-Year Summary 2024
363642076312501 58A 88
Northern Atlantic Coastal Plain aquifer system
Quaternary System
LOCATION - Lat 36°36'41.89", long 76°31'25.36" referenced to North American Datum of 1983, Suffolk City, VA, Hydrologic Unit 03010205, in Great Dismal Swamp National Wildlife Refuge.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 4.70 ft. Upper casing diameter undefined; top of first opening 0 ft, bottom of last opening 4.7 ft.
DATUM - Land-surface datum is 19.39 ft above North American Vertical Datum of 1988. Measuring point: TOP OF CASING, 1.5 ft above land-surface datum, Sep. 14, 2014 to May. 23, 2015; TOP OF CASING, 0 ft above land-surface datum, May. 22, 2015 to present; top of screen, 0.3 ft above land-surface datum, Feb. 7, 2018 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, 1.13 ft above land-surface datum, Nov. 13, 2020; lowest recorded, 2.07 ft below land-surface datum, Sept. 29, 2022.