The water year is designated by the calendar year in which it ends, so the 2010 water year (USGS) started on October 1,2009 and ended on September 30,2010.
Thus the 2010 water year started on October 1,2009 and ended on September 30,2010. The water year is designated by the calendar year in which it ends.
The water year is designated by the calendar year in which it ends. Thus the 2010 water year started on October 1,2009 and ended on September 30,2010.
The water year is designated by the calendar year in which it ends. Thus the 2010 water year started on October 1,2009 and ended on September 30,2010.