In North Carolina, the responsibility for cleanup after a sewer flood can vary depending on the circumstances and the specific location of the incident. In general, property owners are typically responsible for the cleanup and repair of their own property, including any damage caused by sewer backups. However, if the sewer backup is determined to be a result of negligence or a fault in the municipal sewer system, there may be situations where the local government or utility company could share some responsibility. It's important to check with local authorities, utility providers, and your insurance company to understand the specific regulations and guidelines that apply to your situation.