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Date s Amount Comments <br />7-05-01 550 cfs 400 cfs was not maintaining flows at the desired level at G.I. <br />7-24-01 390 cfs Requested suspension of EA releases because it was <br />anticipated increased river flows as a result of a rain event <br />and District operations would keep flows at or above the 500 <br />cfs level at G.I. without EA releases. Districts started <br />decreasing EA releases on the day of the request. <br />7-25-01 0 cfs See comment above. <br />7-28-01 500 cfs Started releases again to maintain z 500 cfs in the river at <br />G.I. for fish community health and tern forage base. <br />8-22-01 400 cfs EA releases were decreased by 100 cfs, in part, to conserve <br />EA water. It was anticipated that shorter days, longer term <br />weather forecasts of < 90 degree temps., irrigation possibly <br />wrapping up a little early this year, and possibilities of rain <br />in the forecast would keep river flows up and water <br />temperatures down. At this time, conservation of EA water <br />for carry-over purposes was given top priority. <br />8-25-01 300 cfs EA releases were decreased by another 100 cfs. Substantial <br />rains in the basin and resultant operations were expected to <br />increase flows in the river for the next several days. Also, <br />with some canals shutting down and more rain in the <br />forecast, longer term river flow conditions were expected to <br />remain at desired levels with less EA contribution. <br />8-30-01 to 0 cfs Due to decreasing irrigation demand and the upcoming end <br />present of irrigation season, EA releases were no longer needed to <br />maintain river flows at desired level of 500 cfs at Grand <br />Island. <br />Nebraska DNR EA accounting of EA flows at the Overton and Grand Island gages, listed in <br />Table 2(page 9), illustrates the extent to which the 61,269 af of water released from the EA <br />augmented flows at Grand Island during the release period (i.e., "...reduced shortages to target <br />flows"). Twenty-two of 63 days (between June 18 and August 19) water temperatures at Grand <br />Island rose above 35°C, the critical thermal threshold for the fish community. Without the <br />additional EA water, unsuitable water temperature conditions may have occurred more frequently <br />during the summer months, putting the fish community and availability of fish for foraging terns <br />at further risk. <br />Water Year 2002 EA AOP 4 January 7, 2002