Every April, the Conservancy hosts a single-day watershed wide event focused on removing litter, tires and other debris from regional waterways. This event brings together volunteers who work collaboratively to clean-up streamside sites, parks and open spaces throughout the watershed. Since its creation in 2004, the Perkiomen Stream Clean-up has grown to become the largest single-day stream clean-up in the state of Pennsylvania with 1,800 volunteers participating in 2024! Click here for more information or to sign-up!