USGS Water-Year Summary 2023
01389765 MOLLY ANN BROOK AT NORTH HALEDON, NJ
LOCATION - Lat 40°57'11", long 74°11'05" referenced to North American Datum of 1983, North Haledon Borough, Passaic County, NJ, Hydrologic Unit 02030103, on left upstream wingwall of culvert on Overlook Avenue in North Haledon, 0.5 mi upstream from Oldham Pond Dam, and 1.5 mi west of Hawthorne.
DRAINAGE AREA - 3.89 mi².
- WDR-US-2007: 1979-84(M). 1986-89(M). WDR-US-2011: 1979-80(M), 1983-86(M), 1990(M), 1992(M), 1994-96(M), 1999-2000(M), 2004-06(M), 2008(M).
PERIOD OF RECORD - Annual maximum, water years 1979 to 2010. Continuous-record gage-height station with annual maximum discharge, water years 2011 to current year. Miscellaneous and occasional low-flow measurements, water years 1979-85, 1988 to 2006.
GAGE - Water-stage recorder with telemetry and crest-stage gage. Datum of gage is 209.68 ft above NGVD of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge, 3,100 ft³/s, computed by State Water Policy Commission at Squaw Lake Dam, 0.2 mi upstream of gage, Jul 23, 1945, gage height, not determined.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,300 ft³/s, from rating curve extended above 240 ft³/s on basis of contracted opening computation of peak flow, May 16, 1990, gage height, 10.93 ft.