PROVISIONAL DATA SUBJECT TO REVISION
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LOCATION.--Lat 40°34'10.4", long
74°08'41.2" referenced to North American Datum of
1983, Richmond County, NY, Hydrologic Unit 02030104, at west
side of Clarke Avenue, northeast corner of Mt. Richmond
Cemetery, Richmondtown, Staten Island.
WELL CHARACTERISTICS.--Depth 65 ft. Upper casing diameter 2 in; top of first opening 55 ft, bottom of last opening 60 ft.
DATUM.--Land-surface datum is 45 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 1.50 ft below land-surface datum, 43.5 ft above land-surface datum, Aug. 26, 2004 to present.
PERIOD OF RECORD.--August 2004 to August 2013.
GAGE.--Water level recorder installed November 2005 to August 2013. Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 10.92 ft above NGVD of 1929, Apr. 29, 2010; lowest recorded, 7.96 ft above NGVD of 1929, Jan. 31, 2011.
WELL CHARACTERISTICS.--Depth 65 ft. Upper casing diameter 2 in; top of first opening 55 ft, bottom of last opening 60 ft.
DATUM.--Land-surface datum is 45 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 1.50 ft below land-surface datum, 43.5 ft above land-surface datum, Aug. 26, 2004 to present.
PERIOD OF RECORD.--August 2004 to August 2013.
GAGE.--Water level recorder installed November 2005 to August 2013. Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 10.92 ft above NGVD of 1929, Apr. 29, 2010; lowest recorded, 7.96 ft above NGVD of 1929, Jan. 31, 2011.
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