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
Funding for this site is provided by:
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.
PERIOD OF RECORD.--
Annual maximum, water years 1979 to 2008.
Continuous-record gage-height station with annual maximum discharge,
water years 2009 to current year. Miscellaneous and occasional low-flow
measurements, water years 1979-85, 1988 to 2006.
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).
Water-stage recorder with telemetry and crest-stage gage.
Datum of gage is 209.68 ft above NGVD of 1929.
Peak discharges above 240 ft3
/s from rating
curve extension on basis of contracted opening computation of peak
flow. Annual peak data can be obtained by selecting Peak streamflow
from the 'Available data for this site' drop-down menu above or
by using this
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 1,300
/s, from rating curve extended above 240 ft3
on basis of contracted opening computation of peak flow, May 16, 1990,
gage height, 10.93 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--
Maximum discharge, 3,100
/s, computed by State Water Policy Commission at Squaw
Lake Dam, 0.2 mi upstream of gage, Jul 23, 1945, gage height, not
National Weather Service flood stage for
this gage is 6 ft.
The water temperature data for this station
are temporary and will only be displayed for 120 days. Although the
instrumentation is calibrated at least once/year, the temporary
classification means that documented routine inspections and other
quality assurance measures are not performed that would make the data
acceptable for archival, retrieval, or future use in general scientific
or interpretive studies.