The Chairman of the Story County Board of Supervisors plans to keep a close eye on how the 2018 legislative session effects the county's bottom line. Rick Sanders says if lawmakers can't deliver a property tax backfill previously promised to local governments it could mean a $500,000 loss in revenue. He says it's too early in the county budget process to know exactly from where that money would come. The loss of property tax backfill could cost the city of Ames a $1 million next year.