Brookfield officials are planning to thank emergency responders and volunteers for their time helping the town recover from last May's macroburst at a  townwide picnic tomorrow at the Town Hall Band Stand.  Brookfield officials say volunteers continue to dedicate time to cleaning up downed tree limbs after.  They say it will be a time to thank neighbors who joined together to clear roads, houses, and other properties in order for emergency responders to get emergency vehicles and utility trucks through.  The picnic tomorrow is noon to 3pm.  Food will be provided for the Emergency Responders and their families.