USGS Water-Year Summary 2024
364852076252202 59C 30 SOW 163B
Northern Atlantic Coastal Plain aquifer system
Patapsco Formation
LOCATION - Lat 36°48'52", long 76°25'22" referenced to North American Datum of 1927, Chesapeake City, VA, Hydrologic Unit 02080208, 0.7 mi southeast of intersection of State Highways 191 and 337, in Chesapeake. Owner: Virginia Department of Environmental Quality.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 948 ft. Upper casing diameter 2 in; top of first opening 938 ft, bottom of last opening 948 ft. Drilled observation water well, 2 in. steel casing 0 to 938 ft, 3 in. stainless steel screen 938 to 948 ft, 50 mesh screen.
DATUM - Land-surface datum is 15 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF CASING, 2.47 ft above land-surface datum, Mar. 11, 1996 to present.
PERIOD OF RECORD - November 1981 to current year. Unpublished records available prior to October 1985 in files of the Virginia Department of Environmental Quality - Water Division.
GAGE - Electronic data logger and pressure transducer, 15-minute record interval. Oct. 9, 1996 to Aug. 10, 2016, occasional measurement with chalked tape by Virginia Department of Environmental Quality - Water Division personnel. Aug. 21, 1985 to Oct. 9, 1996, bimonthly measurement with chalked tape. Prior to Aug. 21, 1985, occasional measurement with chalked tape.
COOPERATION - Records provided by the Virginia Department of Environmental Quality - Water Division.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 67.06 ft below land-surface datum, May 25, 1983; lowest measured, 104.92 ft below land-surface datum, Oct. 6, 2008.