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:
40°54'57", long 74°10'54" referenced to North
American Datum of 1983, Paterson City, Passaic County, NJ, Hydrologic
Unit 02030103, on right bank 80 ft upstream of Society for Establishing
Useful Manufactures (S.U.M.) dam, 300 ft upstream from Passaic Falls
(Great Falls) in Paterson, and 1.5 mi downstream of Peckman
PERIOD OF RECORD.--
Miscellaneous measurements, water years
1987-89, 1991-95, 1997-99, 2001-02, and 2005 to current year. Annual
maximum, water years 2009 to current year.
Water-stage recorder with telemetry. Datum of gage is
1.25 below NAVD of 1988.
Miscellaneous discharge measurements include flow over
dam and falls only; measurements do not include flow through the
hydroelectric power plant. The Society for Establishing Useful
Manufactures (SUM) dam has flashboards installed on the crest that
routinely break free during high-flow events affecting peak
gage-heights. 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 gage height, 122.54 ft,
Aug 30, 2011.