 Still many unanswered questions about what exactly led up to those moments here. But we will find out more as that investigation continues. Reporting in Pierce County, Paul Rivera, Como News. In parts of eastern Washington, water rationing has begun. At the moment, the restrictions only apply to residential irrigation. But the region's dominant industry there is agriculture, which demands a lot of water. Even with the Columbia River nearby, drought conditions have persisted for some time in the Tri-Cities region.