LOCATION.--Lat 43°07'32.2", long 77°39'00.4" referenced to North American Datum of 1983, Monroe County, NY, Hydrologic Unit 04130003, on right bank adjacent to floodwall, in Rochester, 360 ft downstream from West Guard Lock, 0.3 mi upstream from Scottsville Road bridge, and 0.4 mi upstream from Genesee River.
DRAINAGE AREA.--See REMARKS.
PERIOD OF RECORD.--May 2021 to current year (navigation seasons only).
GAGE.--Acoustic velocity meter, water-stage recorder, and crest-stage gage. Datum of gage is 494.41 ft above NAVD of 1988.
REMARKS.--This record represents net diversion from Niagara River basin into Genesee and Oswego River basins through Erie (Barge) Canal. Water Years 2021-23: Records fair except those for estimated daily discharges and those below 100 ft³/s, which are poor.
PERIOD OF DAILY RECORD¹.--WATER TEMPERATURE: March 2021 to current year (navigation seasons only). SPECIFIC CONDUCTANCE: March 2021 to current year (navigation seasons only). DISSOLVED OXYGEN: March 2021 to current year (navigation seasons only). TURBIDITY: March 2021 to current year (navigation seasons only).
INSTRUMENTATION¹.--Multi-parameter water-quality sonde measures water temperature, specific conductance, dissolved oxygen, and turbidity at 15-minute intervals since March 2021.
COOPERATION¹.--In cooperation with New York State Canal Corporation.
EXTREMES FOR PERIOD OF DAILY RECORD¹.--WATER TEMPERATURE: Maximum, 27.9°C, Aug. 27, 28, 2021; minimum, 2.4°C, Dec. 9, 10, 2021.
SPECIFIC CONDUCTANCE: Maximum, 947 uS/cm @ 25°C, Aug. 12, 2022; minimum, 307 uS/cm @ 25°C, Nov. 7, 2021.
DISSOLVED OXYGEN: Maximum, 16.8 mg/L, June 13, 2022; minimum, 3.1 mg/L, Aug. 4, 2021.
TURBIDITY: Maximum, 241 FNU, Oct. 30, 2021; minimum, 0.4 FNU, Oct. 13, 2021, June 28, July 17, 2022.
¹ Water-Quality Records

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