USGS Water-Year Summary for Site 02320250

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	00400 pH(Max.,Min.,Med.)
	99133 NO3+NO2,water,insitu(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

02320250 TROY SPRING NEAR BRANFORD, FL

Ocala Limestone

LOCATION - Lat 30°00'21", long 82°59'51" referenced to North American Datum of 1927, in sec.34, T.5 S., R.13 E., Lafayette County, FL, Hydrologic Unit 03110205, on the southeast side of the spring pool in Troy Spring State Park, 200 feet upstream of the Suwannee River, 5.3 mi northwest of Branford, and 6.8 mi upstream from bridge on U.S. Highway 27.

DRAINAGE AREA - Indeterminate.

REVISIONS HISTORY - Total Dissolved Solid data published from July 2, 2014 to November 8, 2017 were removed from publication on April 2, 2018.

SURFACE-WATER RECORDS

PERIOD OF RECORD - 1942-1995 (9 miscellaneous discharge measurements), 1998, March 2002 to August 2005 (fragmentary), September 2005 to July 14, 2010, March 2014 to April 2014 (gage heights only), July 2014 to current year.

GAGE - Water-stage recorder, water-quality monitor, and data-collection platform. Datum of gage is not determined.

REMARKS - Discharges for the spring are not calculated during higher flows on the Suwannee River which overtop the spring.

WATER-QUALITY RECORDS

PERIOD OF RECORD -

SPECIFIC CONDUCTANCE:  July 2014 to current year.
WATER TEMPERATURE: July 2014 to current year.
DISSOLVED OXYGEN:  July 2014 to current year.
pH:  July 2014 to current year.
NITRATE:  July 2014 to current year.

INSTRUMENTATION -

Water-quality monitor consisting of temperature, specific conductivity, dissolved oxygen and pH.

Water-quality monitor measuring nitrate.

REMARKS -

Extremes for current year and extremes for period of daily record are based on recorded values and may have been exceeded during periods of no record. July 2014 to current year, water temperature, specific conductance and dissolved oxygen published as instantaneous maximum and minimum and daily mean; pH published as instantaneous maximum and minimum and daily median.

From August 21, 2021 to June 28, 2022 the water-quality sensor is located several feet higher in the water column than from July 2, 2014 to August 21, 2021. On June 28, 2022 at 11:00 local time the sensor was returned to its original position.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE:

Maximum instantaneous value: 419 µS/cm; several days in 2014.

Minimum instantaneous value: 58 µS/cm; Aug. 10, 11 and 12, 2021.

WATER TEMPERATURE:

Maximum instantaneous value: 28.2 °C; June 30, 2023.

Minimum instantaneous value: 10.5°C; Jan. 14, 2021.

DISSOLVED OXYGEN:

Maximum instantaneous value: 9.1 mg/L; Jan. 14, 2021.

Minimum instantaneous value: 0.0 mg/L; Many days.

pH:

Maximum instantaneous value: 8.4 std. units; July 18, 2022

Minimum instantaneous value: 5.5 std. units; Dec. 23-27, 2018

NITRATE:

Maximum instantaneous value: 3.04 mg/L; September 11, 2014

Minimum instantaneous value: 0.96 mg/L; April 7, 2021