The sign on the door at Firehouse 7 says it all: “THIS PROPERTY CLOSED BY ORDER OF THE BOARD OF HEALTH.” Asbestos was detected on open surfaces inside the North Plymouth station, prompting the site to be locked down until further notice. Both the town manager and the Board of Health both issued declarations ordering Firehouse 7 closed. The latter order prevents anyone from entering the station until an environmental expert can assess the safety risk. “The town is engaging an environmental hygienist to go in there with the appropriate gear,” said Birgitta Kuehn, chair of the Plymouth Board of Health. “That person will determine if it is safe to remove the firefighters’ gear so they can perform their duties. All firefighters at Fire House 7 have been relocated to other stations.”