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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
01595800 NORTH BRANCH POTOMAC RIVER AT BARNUM, WV
LOCATION - Lat 39°26'42.4", long 79°06'38.9" referenced to North American Datum of 1983, Mineral County, WV, Hydrologic Unit 02070002, on right bank at Barnum, W. Va., 1.7 mi below Jennings Randolph Lake, 0.4 mi upstream from Folly Run, 4.0 mi southwest of Piedmont, W. Va., and at mile 59.4.
DRAINAGE AREA - 266 mi².
REVISIONS HISTORY - https://waterdata.usgs.gov/nwis/dv/?site_no=01595800: 2018.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1966 to September 1985, October 1985 to September 2003 (operated as a partial-record station only), October 2003 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,151.28 ft above North American Vertical Datum of 1988.
REMARKS - Water Years 2021-2023: Records good, except those above 5,000 ft³/s, which are fair, no estimated discharges.
Water Year 2020: Records good, except those above 5,000 ft³/s and those for estimated discharges, which are fair.
Water Years 2017-2019: Records good, except those above 5,000 ft³/s, which are fair, no estimated discharges.
Water Year 2016: Records good, except those above 5,000 ft³/s, which are fair, no estimated daily discharges.
Water Year 2015: Records good, except those above 5,000 ft³/s and those for estimated daily discharges, which are fair.
Water Year 2014: Records good, except those above 5,000 ft³/s, which are fair, no estimated daily discharges.
Water Year 2013 and prior years' accuracy statements can be found in Annual Water Data Reports.
Prior to July 1981, regulation at low flow by Stony River Reservoir, 39 mi upstream from station (see station 01595200). Since July 1981, complete regulation by Jennings Randolph Lake, 1.7 mi upstream from station, capacity 96,600 acre-ft. U.S. Army Corps of Engineers satellite data-collection platform at station.
Prior to July 1981, regulation at low flow by Stony River Reservoir, 39 mi upstream from station (see station 01595200). Since July 1981, complete regulation by Jennings Randolph Lake, 1.7 mi upstream from station, capacity 96,600 acre-ft. U.S. Army Corps of Engineers satellite data-collection platform at station.
WATER-QUALITY RECORDS
PERIOD OF RECORD - April 1967 to September 1986. October 2012 to current year.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 2012 to current year.
SPECIFIC CONDUCTANCE: October 2012 to current year.
pH: October 2012 to current year.
INSTRUMENTATION - Multi-parameter water quality monitor, October 2012 to current year.
REMARKS - Missing record due to periodic instrument malfunction or times when the sensor is being serviced.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 20.6 °C, Sept. 22, 2018; minimum, 1.2 °C, February 24, 2015.
SPECIFIC CONDUCTANCE: Maximum, 560 microsiemens/cm, Oct. 29, 2015; minimum, 156 microsiemens/cm, March 17, 2015.
pH: Maximum, 8.8 standard units, June 8, 2019; minimum, 7.0 standard units, Sept 9, 10, 2018.
