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

USGS 01388000 Ramapo River at Pompton Lakes NJ


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National Weather Service flood stage for this gage is 11.5 ft.

Forecasts for this gage are issued by the National Weather Service routinely year-round.
Forecast information is available here.

Data from the gage located upstream of the Pompton Lakes Dam (01387998) is available at this link.

gage photo LOCATION.--Lat 40°59'31", long 74°16'48" referenced to North American Datum of 1983, Pompton Lakes Borough, Passaic County, NJ, Hydrologic Unit 02030103, on left bank 50 ft upstream from bridge on Paterson-Hamburg Turnpike in Pompton Lakes, 400 ft downstream of Pompton Dam, and 2.0 mi upstream from mouth.
DRAINAGE AREA.--160 mi2.
PERIOD OF RECORD.--October 1921 to current year.
GAGE.--Water-stage recorder, water-quality monitor, and concrete weir. Datum of gage is 171.35 ft above NGVD of 1929. Prior to Nov 1, 2004, gage located on right bank 400 feet upstream of current location, above dam, at datum 19.61 ft higher. Prior to Oct 1, 1981, at datum 29.61 ft higher. Operation of automatic gates in the Pompton Lakes Dam during high water may cause significant variations in stage and flow.
COOPERATION.--Funding for this gage is provided by the New Jersey Department of Environmental Protection, North Jersey District Water Supply Commission, U.S. Army Corps of Engineers, and the U.S. Geological Survey.

Boating safety tips

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
All 7 Available Parameters for this site
00010 Temperature, water 2007-10-01  2016-10-01
00060 Discharge 2007-10-01  2016-10-01
00065 Gage height 2007-10-01  2016-10-01
00095 Specific cond at 25C 2007-10-01  2016-10-01
00300 Dissolved oxygen 2007-10-01  2016-10-01
00301 Diss oxygen,%saturtn 2007-10-01  2016-10-01
00400 pH 2007-10-01  2016-10-01

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Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 26   10-01-2016   02:15 EDT
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Daily discharge, cubic feet per second -- statistics for Oct 1 based on 94 years of record more
Most Recent
Value Oct 1
Median Mean 75th
0.00 26 39 74 162 164 1750

Gage height, feet

Most recent instantaneous value: 6.64   10-01-2016   02:15 EDT
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