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Water-Year Summary for Site 01619000

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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.
Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
LOCATION - Lat 39°42'58.5", long 77°36'23.9" referenced to North American Datum of 1983, Washington County, MD, Hydrologic Unit 02070004, on right bank 100 ft upstream from highway bridge (Millers Church Rd.) at Rocky Forge, 0.4 mi downstream from Pennsylvania-Maryland State line, 0.7 mi downstream from confluence of West and East Branch Antietam Creek, 1.9 mi northeast of Leitersburg, MD, 2.5 mi southwest of Waynesboro, PA, and 36.6 mi upstream from mouth.
DRAINAGE AREA - 93.5 mi².
PERIOD OF RECORD - May 1948 to September 1951, October 1965 to September 1981, June 2005 to current year.
GAGE - Water-stage recorder, crest-stage gage, and concrete control. Datum of gage is 536.15 ft above North American Vertical Datum of 1988. Former datum (536.59 ft above NGVD 1929) could not be recovered when gage was re-established in 2005.
  • Water Year 2020: Records good, except those above 350 ft³/s, which are fair. No estimated discharges.
  • Water Years 2017-2019: Records good, except those above 350 ft³/s, which are fair, and those for estimated discharges, which are poor.
  • Water Years 2014-2016: Records good, except those above 350 ft³/s, which are fair, and those for estimated daily discharges, which are poor.
  • Water Year 2013 and prior years' accuracy statements can be found in Annual Water Data Reports.

  • U.S. Geological Survey satellite data-collection platform at station. Small fluctuations in flow due to batch discharges from the Washington Borough Sewage Treatment Plant, upstream from the gage, on the East Branch of Antietam Creek.