April 18, 2026 | 9am – 12pm

Join more than 1,000 volunteers across the Raritan River watershed to clean up our waterways for Raritan Headwaters’ 36th Annual Stream Cleanup. In celebration of Earth Week, volunteers come together to clean up our rivers and streams, working to protect essential water supplies across Hunterdon, Morris, and Somerset counties.

Last year’s Stream Cleanup was a resounding success and an incredible show of teamwork and volunteerism. More than 1,000 citizens removed 12 tons of trash and recyclables that threaten our drinking water supplies and wildlife. The impact of this extraordinary effort reaches beyond our watershed region – downstream to Raritan Bay and ultimately, the Atlantic Ocean. This event is fundamental in protecting clean water but also beautifies precious outdoor spaces and provides safe access for residents to experience the benefits of outdoor recreation.

Volunteer Registration

Things to Know

• Each participant must provide their name and contact information and agree to follow our safety protocols.
• During registration you will be asked to agree to our Volunteer Release of Liability and Assumption of Risk Agreement. A parent/guardian must agree to these documents for minors.
• Registration closes at midnight April 12th.
• Safety Protocols

Register at a location near you here.