Williston is hosting Green Up Day on Saturday, May 3. Interested resident can get bags and sign up for a green-up location at the Planning & Zoning office weekdays between 8 a.m. and 4:30 p.m. Town officials will also hand out garbage bags Saturday morning at the Williston Community Park beginning at 8 a.m.. The bags can be left on the side of the road. Williston’s Public Works Department will pick up the bags by Monday morning. Last year Williston collected more than 500 bags of trash.