Clean Team Downtown's Clean Team continues to improve the way Downtown looks, one piece of litter at a time. Approximately 50 Clean Sweep Ambassadors (CSAs) are on the streets of Downtown every day, picking up trash, removing graffiti, weeding tree beds, pruning trees & bushes, and power washing sidewalks. Last year alone, CSAs swept up 1,110 tons of litter, and removed graffiti from more than 11,000 locations. CSAs also help property owners with maintenance issues and supervise court-ordered Community Service workers. Last year, more than 275 workers put in more than 20,600 hours helping Downtown look its best.