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USGS 404750073571801 NY 250. 1

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 40°47'50", long 73°57'18" referenced to North American Datum of 1927, New York County, NY, Hydrologic Unit 02030101, at Central Park, 28 ft west of Central Park East Drive, just south of Central Park North Drive, Manhattan.
WELL CHARACTERISTICS.--Depth 75 ft. Upper casing diameter 3 in; top of first opening 18 ft, bottom of last opening 75 ft. Cased to 18 ft, open hole.
DATUM.--Land-surface datum is 27 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 0.25 ft below land-surface datum, 26.75 ft above land-surface datum, Jun. 22, 2005 to present.
PERIOD OF RECORD.--October 2005 to April 2013, July 2024 to current year.
GAGE.--Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 24.37 ft above NGVD of 1929, Apr. 18, 2011; lowest measured, 14.65 ft above NGVD of 1929, Oct. 24, 2008.
> Rating Information
Available Parameters Available Period
  
2025-06-04  2025-12-11








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Summary of all available data for this site
Instantaneous-data availability statement
*** There are no data available on the Waterdata system for the time period specified,
    although data may be available in the files of the local USGS office operating the station.