LOCATION.--Lat 40°39'58", long 73°44'58" referenced to North American Datum of 1927, Queens County, NY, Hydrologic Unit 02030202, at south side of North Conduit Avenue, 1,790 ft west of 225th Street, in ravine, easternmost well, Rosedale.
WELL CHARACTERISTICS.--Depth 50 ft. Upper casing diameter 6 in; top of first opening undefined, bottom of last opening undefined. Screen assumed at bottom.
DATUM.--Land-surface datum is 13 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of northern edge of casing, 14.76 ft above land-surface datum, Nov. 20, 1968 to Apr. 22, 2024; Top of northern edge of casing, 13.554 ft above land-surface datum, Apr. 22, 2024 to present.
PERIOD OF RECORD.--November 1968 to January 2007, April 2009 to current year. Unpublished records for November 1968 to September 1987 are available in files of the U.S. Geological Survey.
GAGE.--Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 9.08 ft above sea level, April 2, 2010; lowest measured, 1.86 ft above sea level, December 15, 1981.

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