The Maintenance and Construction Group is responsible for repair, operation, and maintenance of the distribution system. Installation, operation, and maintenance functions related to mains, services, valves, hydrants, and leak detection are performed by this group. This work includes direct services and related support for control valves, carpentry, purchasing and stores operation, and loss control programs. This group manages the Bureau's two apprentice programs. The emergency crew provides response for outside normal work hour requirements, including main breaks and other emergency responses.