The indoor ice arena in the Vermont city of Barre is closed for nearly a month because of mold. The city councilors were told this week that it will cost about $150,000 to clean up the mold and paint and seal the interior of the arena. The BOR auditorium is expected to reopen on Nov. 5. The Barre-Montpelier Times Argus reported that tests conducted Tuesday confirmed an air quality problem that the facilities director says is linked to mold in the ceiling. The tests were requested by a labor union. Facilities director Jeff Bergeron said the auditorium will lose an estimated $23,000 in revenue, mostly from the Barre Youth Sports Association, while it’s closed.