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  • Effective May 5, 2016, we are experiencing a network outage in North Carolina which is impacting the real-time data display for that Water Science Center. Thank you for your patience as we work to resolve the issue.
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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 01382500 Pequannock River at Macopin Intake Dam NJ


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National Weather Service flood stage for this gage is 5.5 ft.

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

Verified water-temperature data are available April through September. Data between October and March are only provisional.

gage photo LOCATION.--Lat 41°01'06", long 74°24'04" referenced to North American Datum of 1983, West Milford Township, Passaic County, NJ, Hydrologic Unit 02030103, on left bank 15 ft downstream from culvert at crossover between northbound and southbound lanes on State Route 23, 1,000 ft downstream from abandoned Macopin Intake Dam, 0.6 mi downstream from Macopin River, and 2.8 mi northwest of Butler.
DRAINAGE AREA.--63.7 mi2.
PERIOD OF RECORD.--January 1898 to March 1990, September 1992 to current year. Monthly discharge only for some periods, published in WSP 1302. Records for January 1892 to December 1897, published in WSP 541, have been found to be unreliable therefore should not be used.
GAGE.--Water-stage recorder. Datum of gage is 549.17 ft above NGVD of 1929. Prior to May 22, 1970, at site just upstream from Macopin Intake Dam, at datum 36.35 ft higher. May 22, 1970 to March 5, 1990, at site just upstream from Macopin Intake Dam, at datum 20.83 ft higher.
COOPERATION.--Funding is provided by the New Jersey Department of Environmental Protection.

Boating safety tips

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
All 3 Available Parameters for this site
00060 Discharge 2007-10-01  2016-05-05
00065 Gage height 2007-10-01  2016-05-05
00010 Temperature, water 2009-07-29  2015-09-03

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Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 32   05-05-2016  09:20 EDT
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Daily discharge, cubic feet per second -- statistics for May 5 based on 89 years of record more
Median Most Recent
Value May 5
Mean 75th
0.00 6.0 30 32 68 110 401

Gage height, feet

Most recent instantaneous value: 2.56   05-05-2016  09:20 EDT
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