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Water-Year
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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
363342076261100 SYCAMORE DITCH NEAR CYPRESS CHAPEL, VA
LOCATION - Lat 36°33'42.4", long 76°26'10.7" referenced to North American Datum of 1983, Chesapeake City, VA, Hydrologic Unit 03010205, in Great Dismal Swamp National Wildlife Refuge.
DRAINAGE AREA - Not determined.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2009 to current year.
GAGE - Datum of gage is 7.36 +/- 0.10 ft above NAVD of 1988. The NAVD of 1988 datum was determined by a level III GNSS survey by USGS on April 27, 2010 and tied to RM 1.
REMARKS - none.
EXTREMES FOR PERIOD OF RECORD - Through water year 2021: Maximum gage height, 10.99 ft, October 9, 2016, minimum gage height, 5.62 ft, Aug. 20, 21, 2011.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - October 2009 to current year.
INSTRUMENTATION - Tipping bucket rain gage and electronic data logger with 15-minute record interval.
EXTREMES FOR PERIOD OF RECORD - Through water year 2014: Maximum daily precipitation, 11.77 in., Aug. 27, 2011.
