USGS 404028073384601 Hempstead Lake Buoy at Lakeview, NY

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 40°40'28", long 73°38'46" referenced to North American Datum of 1983, Nassau County, NY, Hydrologic Unit is unknown, monitoring buoy situated in the southeast section of the lake.
PERIOD OF RECORD1.--June 2022 to current year.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: June 2022 to current year. SPECIFIC CONDUCTANCE: June 2022 to current year. DISSOLVED OXYGEN: June 2022 to current year. TURBIDITY: June 2022 to current year. pH: June 2022 to current year.
INSTRUMENTATION1.--Water-quality monitor provides 15-minute-interval readings collected from a monitoring buoy that is situated in the southeast section of the lake.
REMARKS1.--Satellite telemeter for water temperature, specific conductance, dissolved oxygen, pH, and turbidity parameters at station.
EXTREMES FOR PERIOD OF RECORD1.--WATER TEMPERATURE: Maximum, 31.8 °C, July 23, 2022; minimum, -0.2 °C, Dec. 25, 2022. SPECIFIC CONDUCTANCE: Maximum, 540 uS/cm at 25 °C, Sept. 30, 2022; minimum, 324 uS/cm at 25 °C, Aug. 29, 2023. DISSOLVED OXYGEN: Maximum, 14.9 mg/L, Jan. 1, 2023; minimum, 4.1 mg/L, Apr. 13, 2023. pH: Maximum, 9.7 pH units, Aug. 15, 2022; minimum, 6.7 pH units, Apr. 13, 2023.  TURBIDITY: Maximum, 55.1 FNU, Aug. 26, 2022; minimum, 1.25 FNU, May 12, 2023.
1 Water-Quality Records
> Rating Information
Available Parameters Available Period
  
2022-06-28  2024-04-12
2022-06-28  2024-04-12
2022-06-28  2024-04-12
2022-06-28  2024-04-12
2022-06-28  2024-04-12







 (7)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Temperature, water, degrees Celsius

Most recent instantaneous value: 14.7 04-12-2024   17:00 EST
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 370 04-12-2024   17:00 EST
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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 11.2 04-12-2024   17:00 EST
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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.5 04-12-2024   17:00 EST
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