LITTLETON — Since the beginning of the coronavirus pandemic, Littleton’s welfare budget has ballooned tenfold, from $25,000 a year to nearly $250,000. Unlike some other states, New Hampshire law requires municipalities to provide lodging and services to anyone visiting the town office who makes the request. The town of Littleton will put up those in need in local motels. While the high demand has increased Littleton’s welfare budget, it has also changed the nature of calls coming into town’s police and emergency medical services personnel, who are challenged as they serve a new population, some with high needs, and work to connect them to the services that they need, but that are sometimes lacking. Littleton Fire Rescue Capt. Chad Miller, who has spent two decades and the fire service and EMS, described the change, which seems to have happened overnight.