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<br />-.. <br /> <br />Description of the Preferred Alternative <br />for the <br />Final EIS on the Operation of Glen Canyon Dam <br /> <br />W <br />-...J <br /> <br /> Low Volume Uonths Medium Volume High Volume Months <br /> Months <br />Minimum release 8,000 beLween 7 am 8,000 between 7 am 8,000 between 7 am <br />(cfs) and 7 pm and 7 pm and 7 pm <br /> 5,000 betltleen 7 pm 5,000 between 7 pm 5,000 between 7 pm <br /> and 7 am and 7 am and 7 am <br />Habitat mainte- Between 30,000 and Between 30,000 and Between 30,000 and <br />nance flow 33,200 33,200 33,200 <br />(cfs) <br />Maximum release 25,000 (will be 25,000 (will be 25,000 (will be <br />(cfs) exceeded for habi- exceeded for habi- exceeded for habi- <br /> tat maintenance tat maintenance tat maintenance <br /> flows) flows) flows) <br />Daily fluctua- 5,000 6,000 8,000 <br />tion <br />(cfs/24 hrs) <br />Monthly release <600,000 600,000 to 800,000 >800,000 <br />volume (acre-- <br />feet) <br />--- <br />Ramp rate (cfs- 4,000 up, 1,500 4,000 up, 1,500 4,000 up, 1,500 <br />/11r) down down down <br />