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ALL DATA ARE AT LOCAL TIME


USGS 01382500 Pequannock River at Macopin Intake Dam NJ

PROVISIONAL DATA SUBJECT TO REVISION

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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.

 


SURFACE-WATER RECORDS

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.
REVISED RECORDS.--WDR-US-2011: 2001 (P)
GAGE.--Water-stage recorder with telemetry and crest-stage gage. 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 34.38 ft higher (revised). May 22, 1970 to March 5, 1990, at site just upstream from Macopin Intake Dam, at datum 20.83 ft higher.
COOPERATION.--Department of Public Affairs, Division of Water Supply, City of Newark. Prior to May 22, 1970, discharge figures provided by city of Newark.
REMARKS.--Records fair, except for discharges above 1,000 ft3/s and estimated discharges, which are poor. Flow regulated by Canistear, Oak Ridge, Clinton, and Charlotteburg Reservoirs, and Echo Lake. Water diverted at Charlotteburg Reservoir for municipal supply of city of Newark.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 6,100 ft3/s, Oct 10, 1903, gage height, 17.40 ft, site and datum then is use; minimum discharge, not determined.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--
Water years 1924, 1962-69, 1973-79, 1991 to current year.
CONTINUOUS DATA:
Dissolved Oxygen: July 2001.
Dissolved Oxygen, Percent of Saturation: July 2001.
Specific Conductance: July 2001.
Water Temperature: July 2001, July 2009 to October 2014.
REMARKS.--Discrete water-quality data were collected as part of the New Jersey Ambient Surface-Water-Quality Monitoring Network.
The accuracy of continuous water-quality data can be found here.
EXTREMES FOR PERIOD OF DAILY RECORD.--

Peak Flood Chart

Gage Photo

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.

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
All 3 Available Parameters for this site
  
00010 Temperature, water 2009-07-29  2015-09-03
00060 Discharge 2007-10-01  2016-12-04
00065 Gage height 2007-10-01  2016-12-04

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Discharge, cubic feet per second

Most recent instantaneous value: 3.6   12-04-2016   16:20 EST
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Daily discharge, cubic feet per second -- statistics for Dec 4 based on 91 years of record more
Min
(1923)
25th
percen-
tile
Most Recent
Instantaneous
Value Dec 4
Median 75th
percen-
tile
Mean Max
(1997)
0.00 0.00 3.6 7.9 46 48 611


Gage height, feet

Most recent instantaneous value: 1.98   12-04-2016   16:20 EST
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