USGS Water-Year Summary for Site 0343233905

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

0343233905 Harpeth River at Mile 90.5 near Franklin, TN

LOCATION - Lat 35°53'59.2", long 86°50'34.4" referenced to North American Datum of 1927, Williamson County, TN, Hydrologic Unit 05130204, on the golf course bridge marked as Forrest Crossing at river mile 90.5.

DRAINAGE AREA - 182.92 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Sept. 17, 2015 to current year.

GAGE - Continuous water-level pressure sensor, satellite data collection platform, and four-parameter water quality monitor. Datum of gage is 611.877 ft sea level elevation NAVD88. Low flow site only at cooperator request.

COOPERATION - City of Franklin, Tennessee.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, unknown ft³/s; gage height, 29.61 ft, March 28, 2021, from HWM from peak gage; minimum discharge, 1.64 ft³/s, September 19, 2019.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Sept. 16, 2015 to current year.

PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: September 16, 2015 to current year.

pH: November 15, 2017 to current year.

WATER TEMPERATURE: September 16, 2015 to current year,

DISSOLVED OXYGEN: September 16, 2015 to current year,

INSTRUMENTATION - Data collection platform and water-quality monitor.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum, 592 micro-Siemens, November 08, 2023; minimum, 83 micro-Siemens, August 31, 2017.

pH: Maximum, 8.9 units, October 29, 2018; minimum, 7.1 units, September 13, 2020.

WATER TEMPERATURE: Maximum, 31.2 °C, July 23, 2022; minimum, 0.00 °C, January 17, 2018, Jan 17 & 21, 2024.

DISSOLVED OXYGEN: Maximum, 15.3 mg/L, March 26, 2016; minimum, 3.0 mg/L, October 30, 2023.