Record Details

page 197

Digital Collections at BYU

Field Value
Title page 197 Final Environmental Statement : authorized Bonneville Unit, Central Utah Project, Utah, page 197
Coverage Electronic reproduction;
Source Bureau of Reclamation. Department of the Interior
Publisher Brigham Young University
Date 2005-10-14
Format 197 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; is exu eau extremely tremely bremely low and the inflow to the bay greatly reduced the 1 1 bay may even become isolated and tend to stagnate c north juab valley the smaller front streams entering north juab valley are of excellent quality for most uses except for salt creek the largest stream which has a TDS ranging from hoo UOO 400 to TOO 700 ngi and is sodium chloride carbonate type water due to contact with agapie arapie shales in its drainage area nephi citys cites municipal and industrial needs are met by exchange for higher quality water from springs in the canyon d sevier river the quality of the water in the sevier river varies in concentra concentta con centra tion of dissolved solids from 290 to 3000 mgl mg1 mgt from plute reser voir to the lower sevier area at plute reservoir the water is of the calcium bicarbonate type with an average concentration of dissolved solids of about 290 ngi mg1 mgl mgt near richfield the concentra concentta con centra tion of dissolved solids is between 500 and 600 ngi mg1 mgl nei mgt between richfield and sevier bridge reservoir groundwater inflow contributes large quantities of salts to the streamflow stream flow the quality of water at lynndyl lynndy lynndal below sevier bridge reservoir ranges from 1500 to 1750 mgt mg1 and has sodium chloride bicarbonate and sulfate as the primary constituents below delta the salt concentration of the water in the sevier river reaches in excess of 3000 mei mg1 mgl mgt even with the high concentrations of salts in the sevier river water when the water is available the lands that it is applied to are quite productive e uinta basin the uinta basin mountain front streams affected by the bonneville Bonn evilie unit are high quality water primarily of the calcium bicarbonate type with TDS ranging from 30 to 350 mg1 mgt measured above most irrigated land the historic and present modi modl modifiedl modified fiedl flow and quality of water data lor for duchesne river near randlett utah green river near ouray utah and colorado river below hoover dam arizona nevada are shown in tables B 9 B bio 10 and bil bli B ll 11 these data which show the effect of present water use on downstream water quality were extracted from colorado river basin progress report no 4 it will be noted that although the salinity concentration of the present modified situation is about 5 percent higher than the historic situation the TDS in tons under present modified conditions is less than 1 percent above historic conditions the increase in salinity concentration is therefore due primarily to decreased flows caused by greater consumptive use of water in the basin 1 I the present modified condition is that expected at any point with all existing upstream projects in operation for the full period of study 197 lyp
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/4870

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