Duplin County residents could see their insurance premiums go down as much as 30%. Thanks to new fire ISO ratings at two volunteer fire departments. Both Beulaville and Sarecta Volunteer Fire Departments just received new ISO ratings. For the Beulaville department, the rating is now a 5/9E in the East Duplin Fire District and a 3 in the town limits. The new rating was the result of years of training and collaboration with other local departments.