Food trucks have been approved to do business at the farmers market at the Fairfield Hills campus in Newtown.  The Planning and Zoning Commission voted unanimously following a public hearing on the issue earlier this month.  A one-year trial period was held to see if the feature would be successful and not disruptive.  Newtown Planning Director George Benson told the Commission that there were no problems involving traffic or litter.  The Newtown Farmers Market is held from mid-June to late October on Tuesdays, from 2pm to 6:30pm.  Food truck operators must pay a town Health Department fee for food service inspection, and the farmers market fee. A maximum of three food trucks will be allowed at each farmers’ market session.  If there are more than three operators who want to participate, the market will hold a lottery.