Record Details

page 1-24

Digital Collections at BYU

Field Value
Title page 1-24 Phase II summary report (final) : Utah Lake water quality, hydrology and aquatic biology impact analysis summary for the irrigation and drainage system--Bonneville Unit, Central Utah Project, page 1-24
Coverage Electronic reproduction;
Format 1-24 text/PDF
Rights Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public
Language English; eng; en
Relation Central Utah Project; Western Waters Digital Library; 9.3 93 93 ft drawdown without the project proiect proie ct under such conditions lake surface elevations would be near or above compromise level during about 17 of the 44 years or a rate of about 39 percent it would reach high levels of over 3 feet above compromise during at least 1 year same as the historic condition and levels of near 11 feet below compromise during 2 years less than 5 percent of the time levels below the 9.3 93 93 feet below compromise would be the result of the added effects of evaporation rather than active drawdown low levels near or under 9 feet below compromise would occur during about 7 years or a rate of about 16 percent about the same rate as in the past the long term average would be about 3.8 38 38 feet below compromise elevation without the project conditions it has been estimated that the surface of utah lake would average about 84000 acres annual inflow to the lake would average about 577000 acre feet flows from the provo river and spanish fork river would average about 135000 and 52000 acre feet respectively outflow to the jordan river would average about 240000 acre feet annually the average annual evaporation losses from the lake surface would be about 335000 acre feet 120 ft drawdown without the proiect project proie ct under such conditions lake surface elevations would be near or above compromise level during about 16 of the 44 years or a rate of about 36 percent it would reach high levels of over 3 feet above compromise during at least 1 year same as the historic condition and levels of near 12 feet below compromise during 2 years less than 5 percent of the time low levels near or under 9 feet below compromise would occur during about 10 years or a rate of about 23 percent a greater rate than in the past the long term average would be about 41 4.1 41 feet below compromise elevation under this without the project condition it has been estimated that the surface of utah lake would average about 83000 acres annual inflow to the lake would average about 577000 acre feet and average inflows from the provo and spanish fork rivers would remain the same as under the 93 9.3 93 drawdown condition outflow to the jordan river would be greater at about 244000 acre feet annually the annual average evaporation losses from the 124 1 24
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/9852

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