USGS Water-Year Summary for Site 03311000

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	Available Parameters
	00010 Temperature, water(Max.,Min.)
	00065 Gage height(Mean)

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

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USGS Water-Year Summary 2024

03311000 NOLIN RIVER AT KYROCK, KY

LOCATION - Lat 37°16'27", long 86°15'03" referenced to North American Datum of 1927, Edmonson County, KY, Hydrologic Unit 05110001, on right bank 470 feet downstream from Dismal Creek, 0.3 miles downstream from Nolin River Dam, 1.2 miles upstream from Pigeon Creek, 0.9 miles northeast of Kyrock, and 7.3 miles upstream from the mouth.

DRAINAGE AREA - 703 mi² of which 223 mi² probably is noncontributing.

SURFACE-WATER RECORDS

GAGE - Water level recorder. Datum of gage is 399.61 ft. above the North American Vertical Datum of 1988. Formerly 400.00 ft above NGVD29.

REMARKS - Flow is entirely regulated by Nolin River Reservoir.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - Water years 1950, 1963-82, August 1989-95, October 2003 to current year.

EXTREMES FOR PERIOD OF RECORD -

Beginning of record - January 8, 2016 TEMPERATURE: Maximum recorded, 31.0°C, July 19-22, 1969, minimum recorded, 0.0°C, many days during winter months.

January 14, 2016 - January 30, 2018

TEMPERATURE: Maximum recorded on 08/30/2016, 24'C; minimum recorded, 4.5'C, 01/29/2016.

DISSOLVED OXYGEN: Maximum recorded, 14.2 mg/L, 02/09/2016,; minimum recorded, 7.1 mg/L, 08/31/2016.

SPECIFIC CONDUCTANCE: Maximum recorded, 326 uS/cm, 10/20/2016; minimum recorded, 119 uS/cm, 04/28/2016.

PH: Maximum recorded, 8.6 units, 03/19/2016; minimum recorded, 7.2 units, 07/19/2016.

TURBIDITY: Maximum recorded, 715 FNU, 07/04/2016; minimum recorded, 0 FNU, 09/25/2016.

Phycocyanin (RFU): Maximum recorded, 1.79 RFU, July 4, 2017; Minimum recorded, 0 RFU, November 10, 2016.

Phycocyanin (ug/L): Maximum recorded, 3.14 ug/L, March 19, 2016; Minimum recorded, 0 ug/L, November 22, 2016.

Chlorophyll (ug/L): Maximum recorded, 98.8 ug/L, may 31, 2017; Minimum recorded, 0.2 ug/L, September 28, 2016.

Chlorophyll (RFU): Maximum recorded, 72.4 RFU, May 28, 2017; Minimum recorded, 0.1 RFU, January 19, 2016.