Record Details
page 137
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 137 Central Utah Project, Bonneville Unit : Diamond Fork Power System : final Environmental Impact Statement, page 137 |
| Coverage | Electronic reproduction; |
| Format | 137 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 syar sixth water or monks hollow reservoirs if problems should occur with temperatures or low dissolved oxygen levels in waters released down diamond fork once the power system is constructed and in operation baf baa f fles les fies ies or mixers could then be constructed to aerate the generally small flows the stream should aerate rapidly within a short distance down stream from a quarter to a half mile if the water content of monks hollow reservoir should fluctuate more than presently planned and tem perature pesature pera ture problems occur an upper outlet or multi level outlet could be attached to the concrete f face ace of the dam A monitoring program would be established to ensure satisfactory water quality As a result of projected low inorganic nitrogen concentrations and relatively high phosphorus concentrations expected in syar sixth water and monks hollow reservoirs there is a 90 percent probability that nitrogen fixing blue green algae will outcomplete outcompete out compete other forms of algae and become the dominant form in these reservoirs however the proba bility ability of blue green algae being dominant seasonally in the proposed reservoirs is not an issue requiring specific control plans or mitigation measures blue green algae is presently dominant seasonally in straw berry reservoir as indicated earlier as well as in deer creek and other reservoirs in the utah area algae blooms in these reservoirs as well as any projected in the proposed reservoirs are normally of the vari eties aties that do not cause the water to become toxic to animals that drink it the more hazardous algae species have been identified in nearby reservoirs but they do not become dominant and have not created sig nificant nific ant toxic problems these species are not expected to cause major problems in the proposed reservoirs the proposed water quality moni toring program would also monitor dominant algae species some of the more significant factors that control algae growth and species dominance are temperature nutrients such as phosphorus and nitrogen and the availability of light phosphorus and nitrogen are not as likely to limit total algae production as light since the lighted photic euphotic euphoric eu zone in the proposed reservoirs is expected to be relatively small compared to the mixed volume of water in which the algae will re side algae being photosynthetic will be limited by this reduced availability of light the temperature of a reservoir also affects the growth rates and physiology of the algal species nutrient uptake and cell growth would vary with changes in the seasonal water temperatures syar and sixth water reservoirs are not expected to remove much phosphorus or have much algal growth because of their short detention time and complete mixing characteristics even though monks hollow reservoir is only expected to weakly strat ley the top several feet of water would probably warm up several degrees warmer than the rest of the reservoir on a daily basis during the warmest part of the summer these combined conditions may result in abundant algae growth in the reservoir particularly in the more isolated or calmer bay areas 137 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/2791 |
