Which agency is charged with enforcing water quality regulations in North Carolina?

The agency responsible for enforcing water quality regulations in North Carolina is the North Carolina Department of Environmental Quality (DEQ). This department oversees several divisions, including the Division of Water Resources and the Division of Water Quality, which specifically focus on protecting and improving water quality across the state. By having a central agency like the DEQ, North Carolina can streamline its efforts to manage and uphold environmental regulations effectively, ensuring that clean water standards are maintained.

The other options involve specific divisions or entities that have roles related to water but do not encompass the overall enforcement responsibilities like the DEQ does. The DEQ's broader mission includes not only water quality but also air quality and other environmental concerns, positioning it as the primary governing body for enforcing water quality regulations in the state.