Governor Bob Ferguson declared a state of emergency in Walla Walla County on August 28, 2026, due to wildfire impacts on the Mill Creek Watershed. The Paradise Fire burned over 8,000 acres, threatening the primary drinking water source for 35,000 Walla Walla residents. The emergency allows the city to seek federal assistance for water treatment and flood management.
The wildfire has left ash and sediment in the watershed that Walla Walla's water plant cannot remove, increasing flood and landslide risks. Governor Ferguson's declaration also includes a statewide burn ban until September 30 and requests federal tax relief for wildfire-impacted residents. The city can now access federal resources to protect its water supply and manage future risks.