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USGS 01382210 Pequannock River at Oak Ridge NJ


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LOCATION.--Lat 41°02'23", long 74°30'06" referenced to North American Datum of 1983, Jefferson Township, Morris County, NJ, Hydrologic Unit 02030103, on right bank, 300 ft upstream from bridge on Oak Ridge Road (Berkshire Valley Road), 400 ft downstream from Oak Ridge Reservoir Dam, and 0.9 mi southwest of Oak Ridge.
DRAINAGE AREA.--27.4 mi2.
PERIOD OF RECORD.--Continuous-record gaging station, April 2010 to current year.
GAGE.--Water-stage recorder with telemetry and crest-stage gage. Datum of gage is 800 ft NGVD 1929 (from topographic map).
REMARKS.--Records fair, except for estimated discharges, which are poor. Flow regulated by Canistear Reservoir, Oak Ridge Reservoir, and other small upstream lakes and ponds.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,980 ft3/s, Aug 28, 2011, gage height, 9.21 ft; minimum discharge, 0.50 ft3/s, Dec 7-8, 2014.
REVISIONS.--Revisions prior to water year 2014 available from Water Data Reports (WDR) listed above in Revised Records. Revisions subsequent to Water Year 2014 can be obtained by using this link.


Dissolved Oxygen: April 2010 to October 2014.
Dissolved Oxygen, Percent of Saturation: April 2010 to October 2014.
Specific Conductance: April 2010 to October 2014.
Water Temperature: April 2010 to October 2014.
REMARKS.--The accuracy of continuous water-quality data can be found here.
DISSOLVED OXYGEN, PERCENT OF SATURATION: Maximum, 112%, Aug 28, 2011; minimum, 13%, Aug 14 and 15, 2012.
SPECIFIC CONDUCTANCE: Maximum, 178 microsiemens/cm, Sep 2, 2014, minimum, 88 microsiemens/cm, Sep 12, 2011.
WATER TEMPERATURE: Maximum, 27.9°C, May 31, 2011; minimum, 4.3°C, Mar 29, 2011.

Peak Flood Chart

Gage Photo

Measurements of water temperature are collected seasonally (May 1 through October 31).

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
2010-04-16  2021-09-26
2010-04-16  2021-09-26
2010-04-16  2021-09-26


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Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius

Most recent instantaneous value: 19.4 09-26-2021   02:15 EDT
Graph of  Temperature, water, degrees Celsius

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