On 5/22/2025, the United States District Court for the Western District of Washington entered a modification to the 2013 consent decree for combined sewer overflows within King County, Washington. The County requested modifications to the 2013 consent decree to allow for more time to control combined sewer overflows, citing increasing rainfall intensity and other impacts of climate change, supply-chain disruptions, and the increased costs of construction in the Seattle area, as support for its request. The modification to the consent decree extends the completion date for some of the projects from 2030 to 2037 and commits the County to significant increases in wastewater storage and treatment capacity. The additional time also enables closer coordination between the City of Seattle and the County on projects to reduce stormwater volumes, and additional planning and design work to ensure that new wet-weather control facilities are more resilient to a changing climate. The County estimates the cost of the injunctive relief included in the CD modification to be $1.74 billion. The County estimated an increase of 32.2 million gallons of storage and an additional 39 million gallons per day of treatment for the projects in the CD modification.