Spokane River Instream Flow Rule Development

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Guy Gregory, Hydrogeologist for WA Department of Ecology’s Water Resource Program in Spokane provided an update on the Spokane River Instream Flow Rule Development process at the Idaho Washington Aquifer Collaborative Meeting on February 11, 2014. Stay informed on instream flow rule making progress at https://www.ecy.wa.gov/programs/wr/rules/557-ov.html

The graph below shows the fluctuations of average September River Flow from 1960 to 2010.  View or download Spokane River Instream Flow – Guy Gregory.  

Spokane River September Differences in Monthly Average Flows 1960-2010