Crews are on the scene of an overflowed sewer line at the intersection of Dorchester Road and Wescott Boulevard and say it could be several hours to repair. A breach in a sanitary sewer line caused raw sewage to enter the storm drain system and ditches at Wescott Boulevard and Avana at Wescott Plantation and the retention ponds near Harris Teeter and Fort Dorchester Elementary School, according to the Dorchester County Water and Sewer Department.