USGS Water-Year Summary 2024
404812073004101 S 3521. 1
Northern Atlantic Coastal Plain aquifer system
Glacial Aquifer, Upper
LOCATION - Lat 40°48'12.1", long 73°00'38.9" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at west side of Old Medford Avenue, 237 ft north of Cedar Avenue, Medford. Well is located in wooded area.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 50 ft. Upper casing diameter 2 in; top of first opening undefined, bottom of last opening undefined. Screen assumed at bottom.
DATUM - Land-surface datum is 71.5 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, 0.77 ft above land-surface datum, 72.57 ft above land-surface datum, Jul. 16, 1942 to Sep. 23, 2024; Top of casing, 0.77 ft above land-surface datum, 71.52 ft above land-surface datum, Sep. 23, 2024 to present.
PERIOD OF RECORD - April 1942 to current year. Unpublished records for January 1907 to July 1909 are available in files of the U.S. Geological Survey.
GAGE - Water-level recorder installed August 2014; 15-minute recording interval. Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 40.00 ft above NAVD of 1988 (41.05 ft above NGVD of 1929), Apr. 23, 2010; lowest measured, 33.05 ft above NAVD of 1988 (34.10 ft above NGVD of 1929), Oct. 17, 2002.