USGS Water-Year Summary 2023
02292900 CALOOSAHATCHEE RIVER AT S-79, NEAR OLGA, FL
LOCATION - Lat 26°43'17", long 81°41'36" referenced to North American Datum of 1927, in SW 1/4 sec.23, T.43 S., R.26 E., Lee County, FL, Hydrologic Unit 03090205, in control house at southeast end of lock at salinity-control structure 79, 1 mi upstream from Telegraph Creek, and 1.2 mi northeast of Olga. Water-quality instruments are located in PVC pipes at the end of the SFWMD platform on the upstream right bank.
DRAINAGE AREA - Indeterminate.
REVISIONS HISTORY - WDR FL-79-2A, 1978.
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1964 to March 1966 (gage heights only), April 1966 to current year.
GAGE - U.S. Army Corps of Engineers owned and operated satellite data collection platform with water-stage shaft encoders. Prior to October 16, 1998, similar equipment belonging to the U.S. Geological Survey was used. Datum of gage is National Geodetic Vertical Datum of 1929.
COOPERATION - U.S. Army Corps of Engineers. Records of stage, gate and lock operation provided by U.S. Army Corps of Engineers.
EXTREMES FOR PERIOD OF RECORD - UPSTREAM STAGES: Maximum gage height, 8.60 ft Sept. 28, 2023 (associated with Hurricane Ian storm surge); minimum, 1.18 ft Sept. 22, 1966.
WATER-QUALITY RECORDS
PERIOD OF RECORD -
SPECIFIC CONDUCTANCE (MID): April 2014 to May 2019. Discontinued.
SPECIFIC CONDUCTANCE (FLOATING): April 2019 to current year.
WATER TEMPERATURE (MID): April 2014 to May 2019. Discontinued.
WATER TEMPERATURE (FLOATING): April 2019 to current year.
TURBIDITY (MID): April 2014 to May 2019. Discontinued.
TURBIDITY (FLOATING): April 2019 to current year.
PH (MID): November 2017 to May 2019. Discontinued.
PH (FLOATING): April 2019 to current year.
DISSOLVED OXYGEN (MID): October 2017 to May 2019. Discontinued.
DISSOLVED OXYGEN (FLOATING): April 2019 to current year.
NITRATE: December 2014 to current year.
FDOM (MID): April 2014 to May 2019. Discontinued.
FDOM (FLOATING): April 2019 to current year.
CHLOROPHYLL (MID): November 2017 to May 2019. Discontinued.
CHLOROPHYLL (FLOATING): April 2019 to current year.
PHYCOCYANIN (MID): November 2017 to May 2019. Discontinued.
PHYCOCYANIN (FLOATING): April 2019 to current year.
INSTRUMENTATION - Water-quality monitor.
EXTREMES FOR PERIOD OF RECORD -
SPECIFIC CONDUCTANCE (MID): Maximum recorded, 815 us/cm Dec. 21, 2018; minimum recorded, 181 us/cm Sept. 13, 2017.
SPECIFIC CONDUCTANCE (FLOATING): Maximum recorded, 1136 us/cm Nov. 20, 2019; minimum recorded, 300 us/cm Sept. 29, 2022.
WATER TEMPERATURE (MID): Maximum recorded, 37.4 °C Aug. 22, 2014; minimum recorded, 16.2 °C Feb. 12, 2016.
WATER TEMPERATURE (FLOATING): Maximum recorded, 36.03 °C Aug. 02, 2022; minimum recorded, 16.8 °C Feb. 2 2022.
TURBIDITY (MID): Maximum recorded, 116 turbidity units Sept. 12, 2017; minimum recorded, 0.4 turbidity units Dec. 18, 2015.
TURBIDITY (FLOATING): Maximum recorded, 221 turbidity units Sept. 28, 2022; minimum recorded, 0.4 turbidity units Dec. 14, 2019.
DISSOLVED OXYGEN (MID): Maximum recorded, 16.4 mg/l Feb. 5, 2019; minimum recorded, 2.13 mg/l July 14, 2018.
DISSOLVED OXYGEN (FLOATING): Maximum recorded, 19.5 mg/l July 25, 2021; minimum recorded, 0.0 mg/l Oct. 1-3, 2022.
PH (MID): Maximum recorded, 8.9 pH units May 12, 2019; minimum recorded, 7.1 pH units July 16, 17, 19 and 20, 2018.
PH (FLOATING): Maximum recorded, 9.0 pH units June 13, 2019 and Apr. 15, 2020; minimum recorded, 6.8 pH units on Oct. 03, 2022.
NITRATE: Maximum recorded, 0.72 mg/L Feb. 21, 2019; minimum recorded, 0.00 mg/L on many days in Nov. and Dec. 2018, Jan., Mar.-July, Dec. 2019, Jan.-June 2020, Mar., May-Jul. 2021 and Feb. to Aug. 2022.
FDOM (MID): Maximum recorded, 532 QSE June 3, 2018; minimum recorded, 132 QSE Apr. 4, 5 and 6, 2017.
FDOM (FLOATING): Maximum recorded, 597 QSE Nov. 16, 2020; minimum recorded, 159 QSE May 30, 2020.
CHLOROPHYLL (MID): Maximum recorded, 14.89 Feb. 5, 2019; minimum recorded, 1.14 May 15, 2018.
CHLOROPHYLL (FLOATING): Maximum recorded, 43.63 July 28, 2019; minimum recorded, 1.22 Oct. 2, 2019.
PHYCOCYANIN (MID): Maximum recorded, 8.24 April 7, 2019; minimum recorded, 0.01 on many days from June to Oct. 2018.
PHYCOCYANIN (FLOATING): Maximum recorded, 8.84 Mar. 31, 2021; minimum recorded, 0.00 Oct. 1, 2019.