The seventh Annual Stream Clean-up is set for 9 to 11 a.m. April 20 at Colonial Lake Park.

This is one of 10 clean-ups organized by Stony Brook-Millstone Watershed Association.

Participants are asked to meet at the park’s parking lot at Lake Court and Brunswick Avenue in Lawrence Township.

Stream-cleaners should wear boots and long sleeves and bring a water bottle and work gloves, if possible. Refreshments will be provided.

Children must be accompanied by an adult.

Groups of more than 10 people should register by contacting Erin Stretz at (609) 737-3735 extension 17 or emccollum@thewatershed.org

The stream clean-up is sponsored by Lawrence Township Environmental Commission and Stony Brook-Millstone Watershed Association.

More information is online at thewatershed.org.