Record Details
page 141
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 141 Central Utah Project, Bonneville Unit : Diamond Fork Power System : final Environmental Impact Statement, page 141 |
| Coverage | Electronic reproduction; |
| Format | 141 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; CHAPTER IV AFFECTED environment AND environmental consequences monks hollow reservoir would probably also mix continuously the probability of eutrophy would be about 65 to 95 percent its capacity detention time dissolved oxygen and water temperatures would be the same as in the recommended plan algae growth would be about the same as in the recommended plan monks hollow reservoir would retain about 91 percent of the sedi ment inflow table 29 a significant reduction from present levels the sediment load at the mouth of diamond fork would be reduced about 61 percent 1964 DPR alternative both syar and sixth water reservoirs would have conditions almost identical to those of the recommended plan both would mix thoroughly have high nutrient loadings high flushing rates and periodically colder waters from strawberry reservoir diamond fork between three forks and hayes reservoir would experi expert ence large daily fluctuations in flows total annual flows would be increased over present conditions some increase in channel and bank erosion is expected however total sediment load and turbidity levels should not increase significantly water released to diamond fork at three forks would be very similar in quality to water released from strawberry reservoir during years that water would be released from below the thermocline in strawberry these temperatures would be relatively cold reaching a maximum of 9 to 11 C in late summer the combination of wide streamflow stream flow fluctuations increased sediment turbidity problems and colder water temperatures would result in signif signia icant icart adverse impacts on this stream section hayes reservoir would probably mildly stratify and would probably be a eutrophic system the probability of eutrophy would be about 60 to 90 percent the reservoir would experience algae blooms but they would not be as extensive as those of strawberry reservoir because of potential light limitation resulting from turbidity and mixing water level fluc aluc tuations tuitions tuat ions and reduced reservoir stability water released downstream would be cool reaching about 9 to 15 C by late summer and could have low oxygen levels unless multi level outlets were installed sediment inflow to hayes reservoir would be a result of project flows released from dyne powerplant Power plant into diamond fork and natural flows hayes reservoir would retain about 93 percent of the sediment inflow table 29 which would reduce the sediment load to the spanish fork river by about 93 percent table 30 this reduction would improve turbidity and suspended solids conditions in the spanish fork river more than the other alternatives diamond fork however would benefit much more than the spanish fork river for any given reduction in sediment load 141 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/3724 |
