Record Details

page 3-34

Digital Collections at BYU

Field Value
Title page 3-34 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 3-34
Coverage Electronic reproduction;
Format 3-34 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; any dikes results in significant habitat losses natural drawdown can reduce available habitat as much as or more than the proposed diking the mean and range in expected submerged hectares of rubblegravel rubble gravel hardpan and sandclay san dclay are given in table 3b ab 3 historically the lowest water levels have occurred in september however under the future simulation with the CUP but no utah lake dikes the lowest water level month is october the highest water level and thus the highest submerged hectares of habitat types historically occurs in april april remains as the peak month in the future simulation with the CUP but no dikes the CUP will based on the future simulation and no dikes maintain a higher average water level in the lake and while the maximum submerged habitat areas remain the same between historical and CUP conditions under the CUP minimum drawdown will be noticeably less than during historical conditions table 3b ab 4 shows the monthly minimum maximum and average areas of water covered habitat with various diking alternatives during a simulated 50 year period with any of the diking alternatives the seasonal pattern of relative habitat availability would be approximately the same as it has been historically the main difference would be the absolute amounts available of concern is the extended season of minimum values of 0 ha july to december of total rubble gravel under the DPR alignment historically the minimum was below 5 ha only during september and october minimum values of submerged habitat areas may not be important if they occur only one year out of 50 but extremely important if 25 out of 50 years figures 3b ab 1 3b ab 2 3b ab 3 and 3b ab 4 illustrate the frequency that hardpan and total rocky habitats respectively have historically been or will be simulated equal to or less than any given area in goshen bay or the main lake for example historically in goshen bay hardpan habitat has been 20 ha or less 38 out of 100 years figure 3b ab 1 with the CUP without any dikes it would be 20 ha or less only 20 out of 100 years 3 34
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/9599

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