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USGS 01387998 Ramapo River above dam at Pompton Lakes NJ


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During winter months, cold and ice may result in inaccurate real-time lake or reservoir elevation data. Adjustments or deletions of this data can only be done after detailed analysis.



LOCATION.--Lat 40°59'34", long 74°16'44" referenced to North American Datum of 1983, Pompton Lakes Borough, Passaic County, NJ, Hydrologic Unit 02030103, on right bank at Pompton Dam, 450 ft upstream from bridge on Paterson-Hamburg Turnpike in Pompton Lakes, and 2.0 mi upstream from mouth.
DRAINAGE AREA.--160 mi2.
PERIOD OF RECORD.--October 1921 to current year. Prior to November 2004, published as "Ramapo River at Pompton Lakes, NJ (01388000)".
GAGE.--Water-stage recorder with telemetry. Datum of gage is 190.96 ft above NGVD of 1929. Prior to Oct 1, 1981, at datum 10.0 ft higher.
REMARKS.--Since April 2007, two flood gates in dam control lake level. Annual peak data can be obtained by selecting Peak streamflow from the 'Available data for this site' drop-down menu above or by using this link.
EXTREMES FOR PERIOD OF RECORD.--Maximum gage height, 15.21 ft , April 5, 1984

Gage Photo

Rain gage data are available from this location at this link.

Data from the gage located downstream of the Pompton Lakes Dam (01388000) is available at this link.

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.

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
All 2 Available Parameters for this site
00010 Temperature, water 2017-11-18  2018-03-18
00065 Gage height 2009-10-01  2018-03-18

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Temperature, water, degrees Celsius

Most recent instantaneous value: 4.9 03-18-2018   02:30 EDT
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Gage height, feet

Most recent instantaneous value: 10.72 03-18-2018   02:30 EDT
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