USGS Water-Year Summary for Site 02423380

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	Available Parameters
	00010 Temperature, water(Min.,Mean,Max.)
	00060 Discharge(Mean)
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Min.,Max.,Mean)
	00400 pH(Min.,Med.,Max.)
	63680 Turbidity, Form Neph(Mean,Min.,Max.)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

02423380 CAHABA RIVER NEAR MOUNTAIN BROOK, AL

LOCATION - Lat 33°28'54", long 86°42'46" referenced to North American Datum of 1927, Jefferson County, AL, Hydrologic Unit 03150202, on downstream side bridge on county road, 0.1 mi upstream from Fuller Creek, 3.5 mi east of Mountain Brook, 5.4 mi upstream from Little Cahaba River, and at mi 153.6.

DRAINAGE AREA - 140 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1980 to September 1981, June 1984 to current year. March 1976 to September 1980 and October 1981 to September 1984 in files of Barton Laboratory, Jefferson County Commission.

GAGE - Water-stage recorder. Datum of gage is 443.85 ft above NGVD of 1929 (levels by Jefferson County Engineering Department).

REMARKS - Record considered good

WATER-QUALITY RECORDS

PERIOD OF RECORD - April 20, 2018 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: October 1994 to September 1999, April 20, 2018 to current year; WATER TEMPERATURE: October 1994 to September 1999, April 20, 2018 to current year; TURBIDITY: April 20, 2018 to current year; DISSOLVED OXYGEN: April 20, 2018 to current year; pH: April 20, 2018 to September 2022 (discontinued)

INSTRUMENTATION - Water quality monitor

REMARKS - Maximum and minimum values given in EXTREMES FOR PERIOD OF REOCRD may have been exceeded during periods of missing record.

EXTREMES FOR PERIOD OF RECORD - SPECIFIC CONDUCTANCE: maximum, 367 uS/cm, October 27, 2022; minimum, 34 uS/cm, February 6, 2020; WATER TEMPERATURE: maximum, 31.1 degC, August 13, 2019, minimum, 1.9 degC, December 26, 2022; TURBIDITY: maximum, 2700 FNU, February 18, 2022, minimum, 0 FNU, January 4, 2019; DISSOLVED OXYGEN: maximum, 13.3 mg/l, December 26, 2022, minimum, 4.2, August 25, 2019; pH: maximum, 8.3, May 13, 2020, minimum, 6.6 July 19, 2019.