Available data

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Continuous data

3 data types available - data from 2009-10-01 to 2026-08-06

Daily data

1 data types available - data from 2013-10-01 to 2026-08-05

Field measurements

1 data types available - data from 2008-01-06 to 2026-02-19

Discrete sample data

0 observed properties (data types) available

Peak measurements

2 data types available - with data from 1882-09-23 to 2023-12-18

Statistical tables for select daily data types

0 data types available

Important information about this monitoring location

The water temperature data for this station are temporary and will only be displayed for 120 days. Although the instrumentation is calibrated at least once/year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.

Location details and information

Available location images

Ramapo River above dam at Pompton Lakes

Ramapo River above dam at Pompton Lakes, NJ

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Operated in cooperation with:

New Jersey Department of Environmental Protection

North Jersey District Water Supply Commission

US Army Corps of Engineers - New York District

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01387998	n/a
Location name	Ramapo River above dam at Pompton Lakes NJ	n/a
Site type	Lake, Reservoir, Impoundment	LK
Decimal latitude (WGS84)	40.9927777777778	n/a
Decimal longitude (WGS84)	-74.2788888888889	n/a
Latitude-longitude method	Interpolated from MAP.	M
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	New Jersey	34
State	New Jersey	34
County	Passaic County	031
Country	United States of America	n/a
Altitude of gage/land surface	190.3 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.05 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Hackensack-Passaic	02030103
Drainage basin		n/a
Date of first construction		n/a
Drainage area	160 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	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

Monitoring location Ramapo River above dam at Pompton Lakes NJ - USGS-01387998