USGS Water-Year Summary 2019
01388500 POMPTON RIVER AT POMPTON PLAINS, NJ
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.
- WSP 1202: 1945(M). WDR-US-08: 1963(M).
PERIOD OF RECORD - Continuous-record discharge station March 1903 to December 1904, May 1940 to current year. Monthly discharge only for some periods, published in WSP 1302.
GAGE - Water-stage recorder with telemetry, crest-stage gage, and concrete control. Datum of gage is 160.00 ft above NGVD of 1929. March 1903 to December 1904, non-recording 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.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge 28,300 ft³/s, Oct 10, 1903, affected by dam failures at Pompton Lake dam and other dams upstream, from computation of peak flow over dam, gage height 14.30 ft, site and datum then in use, maximum gage height 25.24 ft, Aug 29, 2011, current site and datum; minimum discharge 0.00 ft³/s, Aug 14 1904.
PERIOD OF RECORD - Water years 1962-69, 1971-75, 1979-80, 1992, 1994, 1998 to current year.