Document Type

Report

Publication Date

January 1981

Abstract

The Sevier River Basin is a water short basin wherein upstream diversions not consumptively used become the water right for downstream users. The diversion-return cycle occurs several times as the stream travels from its mountain source areas to the terminal lake at the lower end of the basin. This study dealt with the proposed implementation of conservation measures which would wawste less diverted water and allow for irrigation of additional acres. The objective was to predict the hydrosalinity impacts of the implementation of these measures. The results indicated that increased consumptive use in the upper areas would decrease the water supply but would only increase the salinity by 2-300 mg/l. However, the salinity increase in the lower basin from additional use caused the salinity levels to increase significantly and the water supply to reduce significantly. The results came from the application of a hydrosalinity model to the upper subbasins. Some problems were encountered while predicting outlfows over a 14 year period because the data relationship did not seem to remain constant for that period. Additional investigation of taht anomoly would shed more insight to the problem.