Funding for this site is provided by:
41°07'06", long 74°09'37" referenced to North
American Datum of 1983, Rockland County, NY, Hydrologic Unit 02030103,
on left bank 145 ft downstream from highway bridge on New York State
Thruway at Suffern, and 1.1 mi upstream from Mahwah River.
PERIOD OF RECORD.--
June 1979 to current year.
WDR NY-00-1: 1999 (M).
Water-stage recorder, crest-stage gage, and concrete
control. Datum of gage is 264.44 ft above NGVD of 1929.
Flow affected by diversion from United Water New York
well field upstream from station and by occasional regulation by Lake
Sebago. Water Years 2014-16: Records fair except those for estimated
daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 14,700
/s, Aug. 28, 2011, gage height, 18.88 ft, on basis of
runoff comparisons with nearby stations; minimum discharge, 1.7
/s, Sept. 7, 1995, gage height, 1.04 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--
Maximum discharge, 6,600
/s, Mar. 12, 1936, by computation of flow over dam at
site 0.65 mi upstream, drainage area, 90.6 mi2
Peak Flow and Stage Information