The University of Colorado Student Union, in conjunction with the University Hill Neighborhood Association, will sponsor a neighborhood cleanup and social on Sunday, Oct. 22, from 11 a.m. to 3 p.m. The meeting area for participants will be the University Hill parking lot located at 13th Street and Pennsylvania Avenue. "This is a time to get to know one another and break down barriers to form a stronger, safer community for everyone," said Amanda Breeden, UCSU Community Relations director.