Conrad Ayers, left, 17, of Waterville, and Taylor Bielecki, 16, of Waterville, clear out a concrete fitting in the parking lot of Head of Falls in Waterville. Both are part of Waterville High School's Green Team and participated in a community litter cleanup on Saturday afternoon. Ayers and Bielecki removed at least 20 foam coffee containers from the fitting, which appeared to be serving as a garbage can. Ayers said the Green Team worked to reduce the use of styrofoam food containers in the high school.