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Water-Year Summary for Site 03200500

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Available Parameters
00010 Temperature, water(Med.,Max.,Mean,Min.)  
00060 Discharge(Mean)  
00095 Specific cond at 25C(Med.,Mean,Max.,Min.)  

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

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USGS Water-Year Summary 2024
03200500 COAL RIVER AT TORNADO, WV
LOCATION - Lat 38°20'20", long 81°50'30" referenced to North American Datum of 1927, Kanawha County, WV, Hydrologic Unit 05050009, on downstream side of highway bridge at Tornado, 0.2 mi upstream from Falls Creek, and at mile 11.5.
DRAINAGE AREA - 858 mi².
REVISIONS HISTORY -

WDR WV-82-1: Drainage area. WDR WV-97-1: 1962-63(M), 1967(M), 1970(M).

Revisions (2018-2019 WY) -Discharge for the following periods were revised on Apr. 23, 2020 due to improper estimation technique, record was flagged as revised on the following days: Dec. 31, 2017 to Jan. 9, 2018 and Jan. 18-20, 2018. Discharge was also revised on Apr. 23, 2020 due to moving the start date of Rating 31.0 back into a previously approved period where high flow measurements made in Feb. of 2018 verify Rating 31.0 to be in effect.  Record was flagged as revised on the following days in the 2018 calendar year:  Feb. 12, 16-18, Mar. 8-14, Apr. 14-17, 19-29, May 6, 8-12, Jul 10-14, 30-31, Aug. 18-20, Sept. 9-13, 18-20, 23-28, 30, Oct. 1-2, 11-18, Nov. 6-15, 17-22, 24-30, and Dec. 1-8, 15.

SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1908 to September 1911, and November 1928 to September 1931 (daily discharge and peaks), August 1961 to September 1972 (daily discharge and annual maxima), October 1972 to current year (daily discharge and peaks).
GAGE - Water-stage recorder with satellite telemeter. Datum of gage is 569.77 ft above NAVD 88 collected through OPUS solution 06/28/2018. Aug. 1, 1961, to Jan. 9, 1973, nonrecording gage at same site and datum. Prior to Aug. 1, 1961, nonrecording gage at same site at different datum.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: October 1973 to September 1983, April 2011 to current year. WATER TEMPERATURE: May to July 1975, June to September 1976 (once daily), October 1976 to September 1984, April 2011 to current year. TURBIDITY: October 1980 to September 1984. SUSPENDED-SEDIMENT RECORDS: December 1972 to September 1984.
EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum daily, 1,310 µS/cm, Sept. 3, 2011; minimum daily, 88 µS/cm, Dec. 9, 1978, June 22, 1979.

WATER TEMPERATURE: Maximum recorded, 31.5°C, July 8, 19, 20, 1977; minimum recorded, -0.5°C, Dec. 31, 1980, Jan. 1, 2, 1981.

TURBIDITY: Maximum, 1,500 NTU, May 30, 1982; minimum, 0.2 NTU, Nov. 15, 1982.

SEDIMENT CONCENTRATION: Maximum daily mean, 4,000 mg/L, Mar. 17, 1973; minimum daily mean, 0 mg/L on several days in April 1978, Feb. 5, Mar. 21, 22, 1979, Jan. 17, Apr. 29, 1982.

SEDIMENT LOAD: Maximum daily, 263,000 tons, Jan. 26 1978; minimum daily, 0 ton on several days in April 1978, Feb. 5, Mar. 21, 22, 1979, Jan. 17, Apr. 29, 1982.