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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Assessment of Changes in Water Quality in the Spokane River Between Riverside State Park and the Washington-Idaho Border |
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Assessment of Changes in Water Quality in the Spokane River Between Riverside State Park and the Washington-Idaho Border (Number of pages: 54) (Publication Size: 923KB)
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| Author(s) | Hallock, D. | ||||
| Description | The status and trends in water quality in the Spokane River system in Washington State is mixed. Cadmium, lead, and zinc enter the system from upstream, but significant amounts of nutrients and fecal bacteria are added to the mainstem Spokane, and Hangman Creek contributes large quantities of sediment. There are preliminary indications of declining metals concentrations, and sediment in Hangman Creek has declined. Ammonia and phosphorus concentrations have been falling; other nitrogen forms, including total nitrogen, have been increasing. Fecal coliform bacteria also have been increasing, especially during the low-flow months. | ||||
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
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| Contact | EAP Publications Coordinator at 564-669-3028 or EAPpubs@ecy.wa.gov | ||||
| Keywords | station, creek, change, Spokane River, WRIA 57, river, water, trend, water quality, assessment, monitoring, quality, zinc, freshwater, fecal coliform, cadmium, ammonia | ||||
| WATERSHED | Water Resource Inventory Areas (WRIA 54,WRIA 56,WRIA 57) |
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