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43°27'06", long 76°30'19" referenced to North
American Datum of 1983, Oswego County, NY, Hydrologic Unit 04140203, on
right bank at New York State Oswego (Barge) Canal Lock 7 in Oswego, 0.8
mi upstream from mouth.
PERIOD OF RECORD.--
October 1900 to April 1906, October 1933 to
current year. Monthly discharge only for some periods, published in WSP
1307. Prior to January 1904, published as "above Minetto" or
"near Minetto." January 1904 to April 1906, published as
"at Battle Island." Records for April 1897 to September 1900,
published in WSP 65 and for October 1927 to September 1928, published
in WSP 644, have been found to be unreliable and should not be
WDR NY 78-1: Drainage area.
Water-stage recorder. Datum of gage is 245.12 ft above
NGVD of 1929. Prior to October 1933, nonrecording gage at site about 6
mi upstream at different datum.
Records of lockages at Lock 7 provided by New York
State Canal Corporation, records of elevations of Lake Ontario provided
by U.S. Army Corps of Engineers, and records of daily discharges for
Oswego River High Dam upstream provided by Niagara Mohawk Power
Prior to 1933 and subsequent to 1972, flow in Oswego
(Barge) Canal not included. A large amount of natural storage and some
artificial regulation is afforded by the many large lakes and the Erie
(Barge) and Oswego (Barge) Canal systems in the river basin. Large
diurnal fluctuations at low and medium flow caused by powerplants
upstream from station. Oswego River basin receives water from Erie
(Barge) Canal through Lock 32 near Pittsford. Water may be diverted
into or received from Mohawk River basin through summit level of Erie
(Barge) Canal between New London and Utica. During part of year, entire
flow from 45.5 mi2
of Mud Creek drainage area may be
diverted from Chemung River basin into Keuka Lake in Oswego River
basin. Nearly all of the flow from 14 mi2
of the Tioughnioga
River basin may be diverted into De Ruyter Reservoir in Oswego River
basin. Water Years 2014-15: Records good except those for estimated
daily discharges, which are fair.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 37,500
/s, Mar. 28, 1936, includes daily mean discharge of
canals; maximum gage height, 13.46 ft, Apr. 10, 1940; minimum discharge
(river only), 30 ft3
/s, Nov. 6, 1944.
PERIOD OF DAILY RECORD1.--
December 2010 to current year.
SPECIFIC CONDUCTANCE: December 2010 to current year. pH: December 2010
to current year. DISSOLVED OXYGEN: December 2010 to current year.
TURBIDITY: December 2010 to current year.
Refrigerated automatic sampler
since July 2010. Multi-parameter water-quality sonde measures water
temperature, specific conductance, pH, dissolved oxygen, and turbidity
at 15-minute intervals since December 2010.
In cooperation with the U.S.
Environmental Protection Agency's Great Lakes Restoration
Turbidity record is subject to low-end
adjustments when values are below zero and when 0.0 Formazin
Nephelometric Units may have occurred on days of missing record or
EXTREMES FOR PERIOD OF DAILY RECORD1.--
TEMPERATURE: Maximum, 29.5°C, July 17, 2012; minimum, -0.1°C, on
several days during winter period.
SPECIFIC CONDUCTANCE: Maximum, 1,080 uS/cm @ 25°C, Feb. 20, 2011;
minimum, 388 uS/cm @ 25°C, May 2, 2011. pH: Maximum, 9.2, on several
days; minimum, 7.3, Jun. 28, 2012. DISSOLVED OXYGEN: Maximum, 15.9
mg/L, Feb. 26, 28, Apr. 17, 2012; minimum, 3.3 mg/L, Aug. 6, 2012.
TURBIDITY: Maximum, 62 FNU, Sept. 7, 2011; minimum, 0.0 FNU, Sept. 14,
2012 [0.0 FNU may have occurred on days of missing record or instrument
1 Water-Quality Records
Peak Flow and Stage Information