USGS Water-Year Summary 2017
03066000 BLACKWATER RIVER AT DAVIS, WV
LOCATION - Lat 39°07'37", long 79°28'07" referenced to North American Datum of 1927, 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 - 85.9 mi².
- 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).
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 3,059.25 ft NAVD of 1988. Prior to Dec. 18, 1952, nonrecording gage at site 60 ft downstream at same datum.
PERIOD OF RECORD - November 2013 to current year. Unpublished records available August 2000 to October 2013 in the files of the USGS.
INSTRUMENTATION - Tipping bucket rain gage and electronic data logger with 15-minute record interval.
EXTREMES FOR PERIOD OF RECORD - November 2013 to current year: Maximum daily precipitation, 2.32 on July 28, 2017 but may have been higher during periods of missing record.
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.
INSTRUMENTATION - Water-quality monitor April 2013 to current year.
EXTREMES FOR PERIOD OF DAILY RECORD -
pH: Maximum, 11.2 standard units, Sept. 16, 2014; minimum, 5.6 standard units, July 29, 2017.
SPECIFIC CONDUCTANCE: Maximum, 403 microsiemens/cm, Sept. 16, 2014; minimum, 30 microsiemens/cm, July 29, 2017.
WATER TEMPERATURE: Maximum, 27.4°C, July 18, 2013; minimum, -0.2°C, on many days.