The Campustown Action Association wants businesses in the district to help pay for cleanup and maintenance. Director Karin Chitty says they'll ask the Ames City Council to create a Self-Supported Municipal Improvement District that would funnel tax dollars into the existing Make Campustown Shine program. She says property owners of commercial-only buildings would take a $2 tax increase per every $1,000 of taxable value, while mixed-use building owners would see a $5 per $1,000 increase. CAA estimates those taxes would raise about $85,000 in revenue per year to supplement about $40,000 in grants from the city. Chitty says the request goes before the city's Planning and Zoning Commission later this month, with city council action possible in June.