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USFWS Targets at Grand Island, NE USGS gage (cfs) <br />Julian Day Beg Julian Day End Wet Normal Dry Dates <br />1 31 1000 1000 600 Jan 1-31 <br />32 45 1800 1800 1200 Feb 1-14 <br />46 74 3350 3350 2250 Feb 15-Mar 15 <br />75 81 1800 1800 1200 Mar 16-22 <br />82 130 2400 2400 1700 Mar 23-May 10 <br />131 139 1200 1200 800 May 11-19 <br />140 146 4900 3400 800 May 20-26 <br />147 171 3400 3400 800 May 27-Jun 20 <br />172 258 1200 1200 800 Jun 21-Sept 15 <br />259 273 1000 1000 600 Sep 16-Sep 30 <br />274 319 2400 1800 1300 Oct 1-Nov 15 <br />320 365 1000 1000 600 Nov 16-Dec 31 <br />For 1947-1994 Hydrology; Annual Avg----417 kaf of shortages to <br />targets and 477 kaf of excess to targets; Program negotiated water <br />requirement for 130-150 kaf of shortage reduction annually