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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
03066000 BLACKWATER RIVER AT DAVIS, WV
LOCATION - Lat 39°07'37", long 79°28'07" referenced to North American Datum of 1983, Tucker County, WV, Hydrologic Unit 05020004, on right bank 0.4 mi southwest of Davis, 0.5 mi downstream from Beaver Creek, and at mile 11.1.
DRAINAGE AREA - 86.1 mi².
REVISIONS HISTORY - WSP 583: 1921-23. WSP 1173: 1931-34(M, m). WSP 1305: 1928(M), 1932-37(M), 1939-41(M), 1944-48(M). WDR WV-97-1: Drainage area. WDR-US-2008: 1922(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1921 to current year. Records prior to May 17, 1942 provided by West Virginia Power and Transmission Company.
GAGE - Water-stage recorder. Datum of gage is 3,059.3 ft +/- 0.10 ft above NAVD88. Prior to Dec. 18, 1952, nonrecording gage at site 60 ft downstream at same datum.
REMARKS - Maximum discharge, 12,500 ft³/s, from rating curve extended above 7,000 ft³/s, highest since 1888.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - November 2013 to current year. Unpublished records available August 2000 to October 2013 in the files of the USGS.
INSTRUMENTATION - Weighing rain gage and electronic data logger with 15-minute recording interval.
EXTREMES FOR PERIOD OF RECORD - Maximum daily precipitation, 3.51 inches, June 30, 2018; minimum, 0 inches, many days.
WATER-QUALITY RECORDS
PERIOD OF RECORD - April 2013 to current year.
PERIOD OF DAILY RECORD -
pH: April 2013 to current year.
SPECIFIC CONDUCTANCE: April 2013 to current year.
WATER TEMPERATURE: April 2013 to current year.
pH: April 2013 to current year.
SPECIFIC CONDUCTANCE: April 2013 to current year.
WATER TEMPERATURE: April 2013 to current year.
INSTRUMENTATION - Water-quality monitor April 2013 to current year.
EXTREMES FOR PERIOD OF DAILY RECORD -
Instantaneous Values:
pH: Maximum, 11.2 standard units, Sept. 16, 2014; minimum, 5.5 standard units, June 30, 2019.
SPECIFIC CONDUCTANCE: Maximum, 403 microsiemens/cm, Sept. 16, 2014; minimum, 26 microsiemens/cm, June 30, 2019.
WATER TEMPERATURE: Maximum, 28.2°C, July 23, 2022; minimum, -0.2°C, on many days.
Instantaneous Values:
pH: Maximum, 11.2 standard units, Sept. 16, 2014; minimum, 5.5 standard units, June 30, 2019.
SPECIFIC CONDUCTANCE: Maximum, 403 microsiemens/cm, Sept. 16, 2014; minimum, 26 microsiemens/cm, June 30, 2019.
WATER TEMPERATURE: Maximum, 28.2°C, July 23, 2022; minimum, -0.2°C, on many days.
