Ecology Publications & Forms
Upper Yakima River Basin Suspended Sediment and Organochlorine Pesticides TMDL: 2019 Effectiveness Monitoring for TSS and Turbidity TMDL Targets
Upper Yakima River Basin Suspended Sediment and Organochlorine Pesticides TMDL: 2019 Effectiveness Monitoring for TSS and Turbidity TMDL Targets (Number of pages: 122) (Publication Size: 5605KB)
|Author(s)||Newell, E., J. Carroll, and E. Urmös-Berry|
|Description||Located in Kittitas and Yakima Counties, the upper Yakima River basin extends from headwater areas near Snoqualmie Pass, downstream to the more arid regions near the cities of Ellensburg and Selah.
In 2002, the Department of Ecology established a Total Maximum Daily Load (TMDL) for suspended sediment, turbidity, and organochlorine pesticides in the upper Yakima River basin. Turbidity targets and total suspended sediment (TSS) load allocations were established as part of this TMDL. The TMDL also included a detailed implementation plan to improve water quality in the basin.
In 2019, Ecology conducted extensive monitoring to see if the levels of TSS and turbidity in the upper Yakima River basin were meeting the final target levels set by the TMDL.
This 2019 effectiveness monitoring study found that the Yakima River and most of its tributaries met the TMDL targets for turbidity and TSS load allocations for the critical period of April-October 2019. These results indicated that TMDL implementation shows success, but Wilson Creek and Sorenson/Fogarty sub-basins continue to need additional improvement.
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|Contact||Evan Newell at 360-407-6764 or firstname.lastname@example.org|
|Keywords||Upper Yakima River, turbidity, Yakima Basin Integrated Water Management Plan, Yakima River Basin, effectiveness monitoring, organochlorine, total suspended solids, suspended sediment, Yakima Basin, Yakima River, 303(d), TMDL, Total Maximum Daily Load, pesticide, turbidity monitoring, suspended sediment monitoring, TSS|
|WATERSHED||Water Resource Inventory Area 39 Upper Yakima|
|DATA||Environmental Information Management (EIM) #JICA0004
Upper Yakima River Basin Water Quality Monitoring for Aquatic Life: Temperature, Dissolved Oxygen, and pH - Data Summary
Yakima River Basin Suspended Sediment, Turbidity and Organochlorine Pesticide Total Maximum Daily Load Study: Water Quality Effectiveness Monitoring Report
Upper Yakima River Basin Suspended Sediment, Turbidity and Organochlorine Pesticide Total Maximum Daily Load: Detailed Implementation Plan
Upper Yakima River Basin Suspended Sediment, Turbidity and Organochlorine Pesticide Total Maximum Daily Load -- Submittal Report
Upper Yakima River Basin Suspended Sediment and Organochlorine Pesticide Total Maximum Daily Load Evaluation
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