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• <br />JUL -08 -2002 MON 09;10 AM <br />PEAK FT-OWS <br />FAX <br />INCCCdcllee probribility llecnrnnlendcd <br />rc,currc � cc i��rcrval.l flow in crs Notcs <br />201A (5 year) 10,000 (Feb -Jun) - 5 -day duration <br />> 50% occurrence between May 20 -June 20 <br />- May -June preferred for habitat benefits <br />-Veb -June UK for chmmel maintenance <br />4n "/s (2,5 year) 12,000 (Fcb•Jtin) -.5 -day duration <br />1()-ytgir 1-mming average 8,3(10 to 10,800 ftb -Jun) <br />of 5- comccutive -day exccedettcc <br />P. 05 <br />As described by Bowman and Carlson, the recommended peaks in excess of 12,000 cfs "will be � <br />natural occurreilce:s beyond the control of water resoLlrees managers in the Platte River basin ". � <br />l'he 1'ro ar�nii is not intended to create nor augmellt Mows of this magnitude. However, the <br />Service recommends tilat efforts be made to protect the frequency and magnittide of these <br />110turally -occ ornng Peale flows as new waiter- related activities occur in the Platte River basin. <br />flecatisu tllc r'rogram is likely to allSlllellt the atlnLial peak flow ill many lower -flow ycars, it is <br />aliticip'tled that the Program will improve the 10 -year rimning average Peale flow relative to <br />exislltip, Conditions. <br />1'rtll;rtuil_'ruq?.el Flows <br />Dukkicd al the "species Clow" plus the "annual pulse flow" recommendations, as described <br />abc+vc_ Tllc 1'ro�orain target flows are the flow levels that the Program actively seeks to establish <br />tlirougll prOVision of Program water and re- tinting ofriver flows. Program target flows are uscd <br />aS t}lC l)aS1S 101" "SCOI'ltlr," the �nrater- related benefits of Program activities relative to the 130,000 - <br />150,000 AF /year First- Iticrorriont gout for redactions in shortages to targets (see discussion ill <br />Scctiola 3).l <br />VIC prt)gra111 target flow recomi-riendatlons for "average" and for "dry" years are illustrated ill <br />l�'igLire 2, rokative to historic dischamge at Grind island over a recent 50 -year period. <br />"Saying" refers to quantifying (in lhnusanrls of acre -feet) the extent to whicll a water - related activity <br />results (or is anticipated to result) in reductions in stream 11ow shortages to USFWS recommended flows, as <br />colilpared to The hreticnt condition. Scoring provides on tool for evaluating and comp.lrii)3 the potential benefits nl' <br />wnlu'relaied activities in tba context of the Program, ltowcver it is Llot the only mc.uis of asscising potential benefits <br />anrt adverse hilpacts. <br />4 <br />