HRECOS data after March 31, 2026 are no longer available with the USGS, please visit this web site: https://hrecos.org/live-data/

Available data

Select data types to graph from categories based on the way the data were collected.

10 data types available - data from 2010-11-04 to 2026-07-31

4 data types available - data from 2010-11-04 to 2026-07-30

3 data types available - data from 2011-01-06 to 2021-10-05

82 Observed properties (data types) available - with data from 1969-02-26 to 2023-10-12

86 Sampling activities

6 data types available - data from 2010-11-04 to 2026-07-29

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01376269	n/a
Location name	HUDSON RIVER AT PIERMONT NY	n/a
Site type	Estuary	ES
Decimal latitude (WGS84)	41.043194	n/a
Decimal longitude (WGS84)	-73.896056	n/a
Latitude-longitude method	Differential Global Positioning System (DGPS)	D
Latitude-longitude accuracy	Accurate to + or - .1 sec (Differentially-Corrected GPS).	1
District	New York	36
State	New York	36
County	Rockland County	087
Country	United States of America	n/a
Altitude of gage/land surface	0	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.11 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Lower Hudson	02030101
Drainage basin		n/a
Date of first construction		n/a
Drainage area	13125 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	N	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a