Gauge: The gauge is maintained by the U.S. Bureau of Reclamation's Yakima Project (flow information also available through from the Army Corps gauge). The source of water for this section is Bumping Reservoir. A level between 300 and 600 cfs is ideal. You can contact the flow information line at 509-575- 5854 which will provide you with a daily conditions and the plan for the next couple days. The same information is also updated daily on the Yakima Project System Status page.