The Sewer Department is responsible for managing and maintaining the sewer system within a city. This includes tasks such as repairing and maintaining sewer lines and pipes, cleaning and unclogging sewer systems, ensuring compliance with environmental regulations and standards, managing sewage treatment facilities, responding to sewer-related emergencies, and educating the public about proper sewer usage and maintenance. The department also plays a role in planning and implementing sewer system upgrades and expansions to accommodate population growth and development within the City.