Record Details
page 3
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 3 Newsletter 1984 Spring, page 3 |
| Coverage | Electronic reproduction; |
| Format | 3 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; UWCD CUWCD newsletter spill to utah lake with additional control by storage on the tributaries tributa ries to utah lake it can be managed more efficiently through wet and dry cycles construction of dikes across shallow areas of the lake at goshen bay provo bay and the beer creek benjamin slough area then provide for additional flood control and management these dikes reduce the lake area by 13 thus reducing evaporation potential by an equal amount the evaporation savings are exchanged upstream to jordanelle Jor danelle reservoir if extreme flooding occurs provisions for spilling over the dike into goshen bay are provided pumping stations are to be placed at several locations in the vicinity of goshen bay to pump water out of utah lake for irrigation the area behind goshen bay will become a managed wildlife area and provo bay and benjamin slough areas will be reclaimed by drainage lampton reservoir will be located near 10000 south in salt lake county on the jordan river this facility will not only store return flows from the central utah project but will offer some flood storage to offer protection on the lower jordan river in addition to the central utah project facilities the construction st of little dell dam da m will provide flood control benefits to salt lake county areas and will withhold flows that would reach the jordan river and consequently great salt la lake ke thus the ability of the central utah project to control and manage a significant portion of the water originating in the utah lake jordan river basin as well as having strict control of the imported water will have a definite impact on helping to control great salt lake fluctuations central utah project water need in salt lake county carl carpenter A PE E CUWCD the need for central utah project water in salt lake county for municipal and industrial du strial purposes is absolutely imperative it is argued that more ground water can be developed ve more local stream flow used irrigation water converted and even wastewater treated for use before it discharges into great salt lake the facts are that the first three of the above are being utilized and salt lake county still depends upon imported water for 25 percent of its needs in 1981 the total municipal water delivered throughout salt lake county was approximately 170000 acre feet of the total amount 42 percent was derived from wells and springs 33 percent from local surface water sources city creek parleys creek big cottonwood creek and little cottonwood creek and 25 percent was imported from the provo river projects deer creek reservoir about 75 percent of the mal mai water in salt lake county is supplied by the salt lake county water conservancy district and the salt lake city water department recent studies by both water systems indicated that their water requirements quire ments will increase to a total of 270000 acre feet by the year 20000 or an increase of about 100000 acre feet can this 59 percent increase in water demand be met from ground water irrigation conversions additional development of local streams or use of wastewater consider each one ground water the total withdrawal of ground water by wells has averaged about 120000 acre feet annually in salt lake county for the past 20 years according to a study of the groundwater ground water yield of salt lake county by the US geological survey an increase in pumping of 100000 acre feet would cause an average decline in water levels of 20 feet throughout the valley and would decline as much as 60 feet in the cottonwood and magna areas and 80 feet in the east bench area such declines would induce migration of poor quality water into the heavily pumped areas and the additional pumping lift would greatly increase the cost of this source local streamflow strearnflow Stream flow & irrigation conversion local stream streamf streamo streamflow low flow is presently utilized by water treatment plants at city parleys big cottonwood and little cottonwood creeks an important part of using these streams involves the use of high quality water from the mountains for treatment in exchange for utah lake water of lower quality thus irrigation conversion has been and is continuing to occur the local streams lack storage and are subject to wide fluctuations in extreme drought periods they yield about 13 of an average supply therefore in wet cycles large amounts flow to the jordan river and thence great salt lake whereas in dry periods the entire amounts are consumed the construction of little dell reservoir will develop an additional average annual supply of about 5500 acre feet from emigration and parleys creeks and will provide flood control benefits A new treatment plant has recently been completed by the salt lake county water conservancy district to treat the flows from bells canyon middle and |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/1300 |
