This station is operated in cooperation
Suffolk County Department of Health
Lat 40°50'58", long 73°13'27"
referenced to North American Datum of 1983, Suffolk County, NY,
Hydrologic Unit 02030201, on left bank 0.5 mi downstream from New Mill
Pond, 1.0 mi southwest of Smithtown, and 1.5 mi southwest of Village of
PERIOD OF RECORD.--
October 1943 to current year.
WSP 1141: Drainage area.
Water-stage recorder and concrete control. Datum of gage
is 9.59 ft above NGVD of 1929.
No estimated daily discharges. Records good.
Occasional regulation caused by cleaning of fish screens and trash
racks at outlet of New Mill Pond on main stream and ponds on
tributaries above station.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 952
/s, Jan. 22, 1979, gage height, 3.22 ft, result of dam
failure; minimum discharge, 16 ft3
/s, June 5, 6, 1967;
minimum gage height, 0.46 ft, Feb. 9, 1951.
EXTREMES FOR CURRENT YEAR.--
Maximum discharge, 177
/s, Mar. 30, gage height, 1.38 ft; minimum discharge, 17
/s, Sept. 4, gage height, 0.47 ft, result of
Derived from NY Annual Water-Data Report 2010
Peak Flow and Stage Information