Carroll, JimJoy, Joe2019-09-032019-09-032001-01Carroll, J., & Joy, J. (2001). USBR Columbia River pump exchange project: potential water quality impacts on the lower Yakima River (No. 01-03–000). Washington State Department of Ecology.No. 01-03-000http://hdl.handle.net/20.500.11867/17853123 page report, pdf, 1.8Mb.Poor upstream water quality was concluded to be the foremost determinant of water quality conditions in the last 47 miles of the lower Yakima River evaluated in this study. Changes in operational flows at Chandler Canal cannot overcome the water quality degradation occurring upstream. The QUAL2E model mainly predicted some dilution effects on water quality parameters due to increased water volumes associated with the operational changes. Reduced settling of chlorophyll a and total suspended solids was also predicted due to increased velocities of flows. These effects were especially apparent in the Prosser Dam to Chandler Return reach. The proposed operational change at Columbia Canal diversion is predicted to have no noticeable impact on water quality conditions downstream of that diversion.en-USNO KNOWN COPYRIGHT The organization that has made the Item available reasonably believes that the Item is not restricted by copyright or related rights, but a conclusive determination could not be made. Please refer to the organization that has made the Item available for more information. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use.Columbia RiverLower Yakima RiverEnvironmental monitoringWater qualityWater temperatureTechnical Report