Record Details

page 4

Digital Collections at BYU

Field Value
Title page 4 Newsletter 1984 Summer, page 4
Coverage Electronic reproduction;
Format 4 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; CUWCD newsletter plemented plemen ted prior to construction in addition a multilevel multi level outlet works is being designed for jordanelle Jor danelle reservoir to improve water quality in deer creek reservoir the diversion point for mai m&l m&i water and to enhance the fishery in the provo river if problems develop in the north arm of jordanelle Jor danelle they could be adequately resolved by reservoir aeration dam safety safety is of paramount importance in the design and construction st ruction of a dam in 1978 the bureau of reclamation evaluated the geologic suitability of the jordanelle Jor danelle site through an extensive geologic investigation program since that time extensive data has been collected and evaluated nothing has indicated that a safe dam cannot be constructed at the site to aid reclamation in its evaluation of site suitability dr richard H jahns dr ralph B peck and dr walter J arabasz all nationally recognized earth science authorities were hired to determine whether or not a safe dam could be built at the site in their final report dated february 7 1983 they state that A fter after careful review of the technical information presented to us it is our judge ment that a safe embankment dam can be built at jordanelle Jor danelle by the application of accepted principles of good practice provided that additional investigations including those suggested herein do not disclose unexpectedly unfavorable new findings the additional investigations suggested by these experts have been included in reclamations ongoing investigation program it is reclamations position therefore that unless future data prove otherwise a safe dam can be built at the jordanelle Jor danelle site reserv meserv reservoir seepage A major factor in selecting a damsite adamsite is the ability of the reservoir basin materials to hold the water A significant part of reclamations geologic investigation work has been to gather enough surface and subsurface geologic data to make that determination of major concern to the mining companies in the jordanelle Jor danelle vicinity is the impact the reservoir may have on their mining operations they have expressed concern that water stored in the reservoir may seep into their mines further aggravating their ground water problems and increasing pumping costs to assist in the investigations of the jordanelle Jor danelle reservoir particularly ticul arly as the reservoir may affect the existing mines reclamation cla mation hired uintex sintex corporation of salt lake city in uintexs Uin texs final report to reclamation dated april 9 1984 they state from a study of ground water discharge conditions and water level fluctuations tuat ions in boreholes bore holes in the reservoir region there is no evidence of conduit type hydraulic connection between the mining district and the reservoir district they further state that there is no absolute evidence that fissures do not exist but if there is a fissure in the vicinity of the reservoir it probably would not carry appreciable quantities of water they estimate that with jordanelle Jor danelle the maximum increase in flow that could be expected if the water level in the mayflower mine were lowered to 4200 feet below mean sea level would be about 50 gallons per minute this rate accordingly would be less during the transient state period which may require several decades based on results of reclamation studies and on the conclusions of the uintex sintex report the presence of jordanelle Jor danelle reservoir will not have an appreciable effect on ground water conditions in the mining district diking of provo bay provo bay known locally as mud lake is the eastern extremity of utah lake the bay covers 7000 acres and has a storage capacity of approximately 26600 acre acne f feet eet beet As part of the irrigationand irrigation and drainage system iad i&d it was proposed in the 1964 bonneville unit definite plan report DPR and in the 1973 bonneville unit final environmental statement FES that provo bay be separated from the main body of the lake by a long dike the dike would result in reduced evaporation losses for utah lake most of the conserved water would be delivered to a proposed agriculture development located behind the dike on reclaimed land for this reason the provo bay development is a separate module of the iad lad system and if not developed would not have a major impact on the bonneville units water supply the bureau of reclamation also has proposed to dike goshen bay the southern extremity of utah lake the proposed bay dike is separate from the provo bay development if goshen bay is not diked biked it would have a major impact on the water supply municipal and industrial or agricultural water would have to be scaled back As part of the environmental review process for the iad i&d system reclamation will be evaluating the proposal to dike provo bay A preferred plan must be selected by the summer of 1984 for a draft environmen environment
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/1305

© Western Waters Digital Library - GWLA member projects - Designed by the J. Willard Marriott Library - Hosted by Oregon State University Libraries and Press