Record Details

page C-94

Digital Collections at BYU

Field Value
Title page C-94 Final environmental statement : authorized municipal and industrial system, Bonneville Unit, Central Utah Project, Utah, Vol. 1, page C-94
Coverage Electronic reproduction;
Date 14
Format C-94 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; units authorized and under study curve D shows the additional measures needed to obtain the 1976 salinity standard the colorado river basin salinity control forum analyzed an array of runoff and depletion levels in developing the salinity standards the results of one of its analyses are plotted in figure C 6 curve A represents the salinity effects of the anticipated basin development without salinity control measures curve B represents the effect of adding the 4 authorized salinity control projects 12 of the salinity control projects under investigation meeker dome not included and the adoption of a no salt return policy to industrial development the forum has concluded that the salinity standard can be maintained through 1990 under certain sets of conditions recognizing the inherent difficulty in projecting cumulative future impacts in the basin a key provision allows for reassessment and review of salinity criteria every 3 years the methods of analysis used by the forum and the bureau of reclamation are similar the input assumptions were different however and the resulting projected 1990 salinity levels are different the following is a comparison of one set of assumptions used by the forum with those used by the bureau in its study virgin runoff lees ferry depletion level salanty salinty control bureau of reclamation 13900000 acre feet 13500000 acre feet completion of 4 authorized thori zed and 13 investigated vesti gated projects grand valley 410000 tons salt load depie tion adoption of a iino no salt return policy to large industrial development forum 15000000 acre feet 12600000 acre feet completion of 4 author ized iced and 12 investi invests gated projects meeker dome not included grand valley 200000 tons salt load depie tion adoption of a 11no no salt return policy to industrial development As shown in figure C 7 the forum projected a decrease in salinity for the period 197779 1977 79 because of projected releases of excess flows from storage passing imperial dam these releases would be required because an average inflow of 15 million acre feet would occupy all available storage in the basin before the projected depletions equalled equal led the total inflow the forum depletion projections include most of the same projects and developments as those of the bureau of reclama tion the anticipated date of completion for some of the projects is later in the forums projections and its projected total depletion by 1990 is less the long term runoff at lees ferry 190674 1906 74 is 14.9 149 149 million acre feet and the forum adopted a future water yield closer to that number in its assessment C 94
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/11501

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