USGS Water-Year Summary for Site 02322700

Click to hide Water-Year Summary instructions and information

Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
Not all sites have reports available for every water year.

	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	00400 pH(Max.,Med.,Min.)
	99133 NO3+NO2,water,insitu(Max.,Min.,Mean)

Select a water year

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

Print this page

USGS Water-Year Summary 2024

02322700 ICHETUCKNEE RIVER AT HIGHWAY 27 NEAR HILDRETH, FL

LOCATION - Lat 29°57'09", long 82°47'10" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 NE 1/4 sec.12, T.6 S., R.15 E., Columbia County, FL, Hydrologic Unit 03110206, on the downstream side of bridge on U.S. Highway 27, 1.0 mi east of Hildreth, 1.5 mi upstream from mouth, and 3.0 mi downstream from Ichetucknee Head Spring.

DRAINAGE AREA - 213 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - 1917, 1989, 1991 (miscellaneous discharge measurements), October 1929 to September 1983 and October 1995 to September 1998 (discharge measurements), February 2002 to current year. Published as Ichetucknee Springs near Hildreth, 1989, October 1995 to September 1996, 1998.

GAGE - Water-stage recorder and data-collection platform. Datum of gage is National Geodetic Vertical Datum of 1929. Auxiliary water-stage recorder at bridge on U.S. Highway 129, 7.0 mi below base gage, at datum 3.5 ft above National Geodetic Vertical Datum of 1929.

EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 34.05 ft, Apr. 12, 1948.

WATER-QUALITY RECORDS

PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: January 2018 to current year.
WATER TEMPERATURE: January 2018 to current year.
DISSOLVED OXYGEN: January 2022 to current year.
pH: January 2022 to current year.
NITRATE: November 2016 to current year.

INSTRUMENTATION -

Water-quality monitor consisting of temperature and specific conductivity.

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.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum, 5352 uS/cm; Feb. 21, 2018 and June 15, 2021; minimum, 194 uS/cm; July 31, 2018.

WATER TEMPERATURE: Maximum, 24.9C; August 04, 2020; minimum, 17.8C; Dec. 12, 2018.

DISSOLVED OXYGEN: Maximum, 8.5mg/L, March 2, 2023 ; minimum, 3.2 mg/L, April 7, 2022 and June 26, 2022.

pH: Maximum, 8.3 std. units, 03/02/2023; minimum, 7.6 std. units, many days 2022.

NITRATE: Maximum, 0.81 mg/L; May 10, 2019; minimum, 0.31 mg/L; August 12, 2018.