Record Details

page C-85

Digital Collections at BYU

Field Value
Title page C-85 Final environmental statement : authorized Upalco Unit, Central Utah Project, Utah, page C-85
Coverage Electronic reproduction;
Format C-85 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; base conditions assumed with respect to quantity of runoff rate of development and implementation of salinity control measures in order to provide some early perspective of projected salinity levels in the river however this section includes a discussion of bureau of reclamation estimates and the results of one of several analyses made by the colorado river basin salinity control forum in its study the bureau of reclamation analyzed effects of 43 water resource developments and 17 salinity control measures except for the fruitland froitland Fruit land mesa and savery pot hook projects which were excluded from the study since they were not funded in the 1977 public works appropriation bill the developments are the same as those dis cussed in the final env benv environmental ironmental iron mental statement water quality improvement program of may 1977 FES 7715 77 15 prepared by the bureau of reclamation and soil conservation service also except for the exclusion of the fruit land mesa and savery pot hook projects the water resource developments are the s same ame as those listed in the department of the interiors progress report no 8 quality of water colorado river basin the water resource develo cevelo developments p ments include authorized federal developments as well as state local and private developments thirty three of these are in the upper basin and 10 in the lower basin the salinity control measures are planned to provide control of point diffuse and irrigation sources of salinity under the colorado river salinity control act of june 24 1974 four salinity control projects were authorized for construction and 12 authorized for further study the seventeenth unit the meeker dome unit in colorado is now also under investigation of the 17 salinity control measures 12 would be in the upper basin and 5 in the lower basin the bureau of reclamation estimates were made to the year 2000 they were based on hydrologic records for the period 194174 1941 74 since this chis is the only period having extensive concurrent runoff and quality data during this period the mean annual virgin runoff at lees ferry was approximately 13.9 139 139 million acre feet the corresponding depletion levels at imperial dam for the years 1990 and 2000 were projected to be 13.5 135 135 million acre feet and 13.9 139 139 million acre feet respectively part of which is supplied by inflows below lees ferry estimates of future salinity in the colorado river were compared against a standard salinity level of 879 mg1 mgt at imperial dam average historical concentration of 1972 this standard was proposed by the colorado river basin salinity control forum and approved by the environmental protection agency establishment of this standard was part of the salinity program in the colorado river basin which is being undertaken with the general objective of keeping salinity in the lower basin at or below present levels while the basin states continue to develop their compact apportioned water salinity projections of the bureau of reclamation are shown in table C 34 and figure C 4 As shown in the table salinity control measures authorized and under study would provide a reduction C 85
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/3044

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