USGS Water-Year Summary for Site 03290500

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

03290500 KENTUCKY RIVER AT LOCK 2 AT LOCKPORT, KY

LOCATION - Lat 38°26'20", long 84°57'48" referenced to North American Datum of 1927, Henry County, KY, Hydrologic Unit 05100205, on left bank at Lock 2 at Lockport, 0.1 mile downstream from Sixmile Creek and at mile 31.0.

DRAINAGE AREA - 6,180 mi² of which 196 mi² probably is noncontributing.

REVISIONS HISTORY - WSP 1385: 1926-29, 1932, 1934-37, 1945. WSP 1955: Drainage area. See also PERIOD OF RECORD.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1925 to September 1930, March 1931 to September 1931, December 1931 to April 1932, October 1933 to September 1937, and July 1939 to current year. Monthly discharge only for some periods, published in WSP 1305. Monthly discharge only for October 1930 to March 1931, October 1931 to April 1932, and October 1938 to June 1939, published in WSP 1305; figures of daily discharge published in WSP 698 are unreliable.

GAGE - Fixed weir dam with water-stage recorder, and crest stage gage. Datum of gage is 433.36 feet above NGVD of 1929. Prior to August 29, 1975, nonrecording gage at same site and datum. Auxiliary is a fixed weir dam with water-stage recorder, and crest stage gage, located in the lower pool at Lock 3. Datum is 434.31 feet above NAVD of 1988 and 434.71 ft above NGVD of 1929.

COOPERATION - U.S. Army Corps of Engineers, Louisville District and the Kentucky River Authority.

REMARKS -

Flow regulated by Herrington Lake beginning November 1925 (station 03286000), Buckhorn Lake beginning December 1960 (station 03280800), Carr Fork Lake beginning January 1976 (station 03277446), and by hydroelectric plant at Lock 7.

EXTREMES FOR PERIOD OF RECORD - Maximum gage height 56.85 ft. on January 24, 1937, backwater affected; maximum discharge 123000 ft³/s on January 26, 1937, backwater affected.

WATER-QUALITY RECORDS

PERIOD OF RECORD -

WATER TEMPERATURE: October 2018 to present.

DISSOLVED OXYGEN: October 2018 to present.

SPECIFIC CONDUCTANCE: October 2018 to present.

pH: October 2018 to present.

Turbidity: October 2018 to present.

NITRATE: October 2018 to present.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum recorded, 708 uS/cm, November 11, 2019; Minimum recorded, 116 uS/cm, Mar. 5, 2021.

pH: Maximum recorded, 9.4 units, August 27, 2022*; Minimum recorded, 7.2 units, July 07, 2019.*

WATER TEMPERATURE: Maximum recorded, 31.9 C, August 19, 2019; Minimum recorded, 1.4 C, February 22, 2021.*

DISSOLVED OXYGEN: Maximum recorded, 20.4 mg/L, June 30, 2022; Minimum recorded, 0.3, July 6, 2019

TURBIDITY: Maximum recorded, 661 FNU, March 09, 2019; Minimum recorded, 0.1 FNU, June 18, 2020.*

NITRATE: Maximum recorded, 2.53 mg/L, October 15, 2019; Minimum recorded, 0.03 mg/L, July 6, 2019.

* Multiple occurrences of the same extreme in selected water year. First occurrence listed.*