Record Details
page S-8
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page S-8 Central Utah Project, Bonneville Unit : Diamond Fork Power System : final Environmental Impact Statement, page S-8 |
| Coverage | Electronic reproduction; |
| Format | S-8 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; SUMMARY continued released from strawberry reservoir except that anoxic waters from straw berry would be aerated all three reservoirs would have relatively high nutrient loadings and would be classified as eutrophic however signif signia icant icart eutrophication problems are not expected because of water level fluctuations and short detention times particularly in the smaller res ervoirs ervo irs monks hollow reservoir is expected to weakly stratify during project operation projected water temperatures of the reservoir water that would be released to diamond fork should be within 50 5 to 80 8 C of present conditions even though monks hollow reservoir is not expected to strongly stratify the top several feet of water would probably be come several degrees warmer than the rest of the reservoir during the warmest part of the summer these combined conditions may result in abundant algae growth in the reservoir particularly in more isolated or calmer bay areas under project operation nutrient levels in dia mond fork should not be significantly higher than at present the sedi ment load in diamond fork would be reduced significantly from present conditions the increased late summer and autumn flows flaws from the project would improve water quality in the lower reaches of the spanish fork river by diluting the flows which presently consist mostly of seepage and irrigation return flows approximately 45 miles of fishery habitat in diamond fork the spanish fork river and sixth water creeks would be affected by the proj broj ect act as a result of altering existing streamflow stream flow patterns the recommended plan would result in considerable enhancement of stream fish eries mainly because the diamond fork pipeline from monks hollow to the spanish fork river would remove excess flows from diamond fork thereby reducing water velocities scouring and bank erosion trout standing crop habitat and angler use would increase over existing conditions especially in the lower reach of diamond fork this increase would more than compensate for the loss of habitat upstream because of inundation by monks hollow reservoir and removal of presently imported flows from sixth water creek which is the only stream that would be adversely af fected fectea by implementation of the plan reduction in trout habitat would occur because the irrigation flows from strawberry reservoir that now flow through the upper portion of the creek would be diverted through syar tunnel and into syar and sixth water reservoirs the upper portion of the creek would revert to natural flows which would be much less than the high flows it now carries these lowered flows would not pro vide the existing level of trout habitat monks hollow reservoir is expected to have limited fish production potential syar and sixth water reservoirs would be too small and would undergo too rapid and extreme fluctuations to support viable fisheries with the recommended plan the permanent loss and reduced quality of existing wildlife habitat based on indicator species would range from 98 acres beaver and coopers hawk to 2487 acres mule deer through a combination of construction impacts reservoir inundation new and improved access roads and operation of project features impacts to beaver would be mostly compensated the loss of mule deer habitat would nearly all be compensated by habitat replacement and management S 8 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/4525 |
