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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
01644280 BROAD RUN NEAR LEESBURG, VA
LOCATION - Lat 39°02'47.1", long 77°25'56.6" referenced to North American Datum of 1983, Loudoun County, VA, Hydrologic Unit 02070008, on right bank 15 ft upstream from State Highway 7 and 8 mi southeast of Leesburg.
DRAINAGE AREA - 76.1 mi².
REVISIONS HISTORY - WY2002 to WY2021 peak streamflow was revised to include a qualifier that reflects the discharge is affected by regulation.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2001 to current year.
GAGE - Water-stage recorder. Datum of gage is 194.24 ft NAVD of 1988.
WATER-QUALITY RECORDS
PERIOD OF RECORD - October 2006 to April 2009.
PERIOD OF DAILY RECORD - February 2007 to April 2009.
INSTRUMENTATION - Electronic data logger with 15-minute recording interval.
EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum, 2,020 microsiemens/cm, Jan. 31, 2009; minimum, 65 microsiemens/cm, May 12, 2008.
WATER TEMPERATURE: Maximum, 29.8°C, July 20, 2008; minimum, -0.5°C, Jan. 31, 2009.
SPECIFIC CONDUCTANCE: Maximum, 2,020 microsiemens/cm, Jan. 31, 2009; minimum, 65 microsiemens/cm, May 12, 2008.
WATER TEMPERATURE: Maximum, 29.8°C, July 20, 2008; minimum, -0.5°C, Jan. 31, 2009.
