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National Weather Service flood stage for this gage is 16.0 ft.
Forecasts for this gage are issued by the National
Weather Service routinely year-round.
LOCATION.--Lat 40°58'11", long 74°16'55" referenced to North American Datum of 1983, Wayne Township, Passaic County, NJ, Hydrologic Unit 02030103, on left bank just upstream of the Passaic Valley Water Commission pumping station, 800 ft downstream of confluence of Pequannock and Ramapo Rivers, 140 ft upstream from bridge on Jackson Avenue (Pompton Plains Cross Road), and 0.7 mi east of Pompton Plains.
DRAINAGE AREA.--355 mi2.
PERIOD OF RECORD.--March 1903 to December 1904, May 1940 to current year. Monthly discharge only for some periods, published in WSP 1302.
GAGE.--Water-stage recorder, crest-stage gage, and concrete control. Datum of gage is 160.00 ft above NGVD of 1929. March 1903 to December 1904, nonrecording gage on main spillway of dam 2,000 ft upstream at different datum. May 1940 to September 1964 two water-stage recorders, each above a concrete dam about 2,000 ft upstream at datum 14.46 ft higher.
COOPERATION.--Funding for this gage is provided by the New Jersey Department of Environmental Protection and the U.S. Geological Survey. During high water, operation of automatic gates in the Pompton Lakes Dam, located about 2 miles upstream of this gage, may cause significant variations in stage and flow.
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Value Sep 5