Wet weather events (e.g., rain, snowmelt) can affect operations at publicly owned treatment works (POTWs) when excess water enters the wastewater collection system. Large wet weather events can exceed the POTW treatment plant's capacity to provide the same type of treatment for all incoming wastewater. POTWs need flexibility to manage and treat peak flows under wet weather conditions to ensure efficient treatment plant operation while protecting public health. EPA is currently exploring permitting approaches to allow flexibility for more resilient and adaptable solutions for managing peak flows.