USGS Water-Year Summary for Site 01302020

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Min.,Max.,Mean)
	90860 Salinity, at 25C(Max.,Min.,Mean)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

01302020 BRONX RIVER AT NEW YORK BOTANICAL GARDEN AT BRONX, NY

LOCATION - Lat 40°51'44.3", long 73°52'27.8" referenced to North American Datum of 1983, Bronx County, NY, Hydrologic Unit 02030102, on left bank at New York Botanical Garden in Bronx.

DRAINAGE AREA - 38.4 mi². not including 12.7 mi², from which the entire flow is diverted for municipal water supply.

SURFACE-WATER RECORDS

PERIOD OF RECORD - August 2006 to current year.

GAGE - Water-stage recorder. Datum of gage is 49.86 ft above NAVD of 1988.

REMARKS - Entire flow, runoff from 12.7 mi², diverted from Kensico Reservoir for water supply of City of New York and entire flow, runoff from 0.68 mi², except for periods of spill, diverted from White Plains Reservoirs 1 and 2 for water supply of City of White Plains. Satellite gage-height telemeter at station.
Water Years 2014-24: Records fair.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,460 ft³/s, Apr. 16, 2007, gage height, 6.05 ft; minimum discharge, 2.7 ft³/s, Nov. 4, 2024, gage height, 0.32 ft.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - WATER TEMPERATURE: June 2021 to current year.
SPECIFIC CONDUCTANCE: June 2021 to current year.
SALINITY: June 2021 to current year.
pH: June 2021 to current year.
DISSOLVED OXYGEN: June 2021 to current year.
TURBIDITY: June 2021 to current year.

INSTRUMENTATION - A continuous water-quality monitor with water temperature, specific conductance, pH, dissolved oxygen, and turbidity provides 15-minute-interval readings. Salinity record computed from specific-conductance readings.

EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 27.2 °C, June 30, 2021; minimum, -0.2 °C, Jan. 22, 2022, Jan. 23, 2025.
SPECIFIC CONDUCTANCE: Maximum, 7,650 uS/cm @ 25 °C, Feb. 9, 2025; minimum, 80 uS/cm @ 25 °C, Jan. 10, 2021.
SALINITY: Maximum, 4.2 psu, Feb. 9, 2025; minimum, 0.0 psu, Jan. 10, 2021.
pH: Maximum, 9.3, Mar. 14, 2025; minimum, 6.7, Sept. 2, 2021.
DISSOLVED OXYGEN: Maximum, 19.0 mg/L, Feb. 21, 2024; minimum, 0.4 mg/L, Aug. 31, 2022.
TURBIDITY: Maximum, 289 FNU, Sept. 13, 2023; minimum, <0.3 FNU, June 24, 2024. [<, actual value is known to be less than the value shown