Maintenance Department - Frequently Asked Questions
The Transmission and Distribution (T&D) section is responsible for maintenance of water distribution equipment and facilities including valves, hydrants, cross-connection prevention devices, fire detector check assemblies, and some meter maintenance. The same section is responsible for customer service leaks and repairs, fire flow testing, system flushing and minor construction and repair works. Every year, this section tests and repairs approximately 2,300 fire hydrants and about 3,500 valves. Also, T&D tests over 1,000 back flow, or cross-connection, devices and repairs or replaces those that are malfunctioning. Additionally, over 300 fire detector/check assemblies are tested annually and repaired if necessary.
The Electro/Mechanical (E/M) section is responsible for operation and maintenance of all E/M systems, including motors, pumps, instrumentation and controls, telemetry, electrical power distribution, emergency generators, indoor/outdoor lighting, cathodic protection, regulating stations and hydro pneumatic tanks. This section also supports Operations and provides maintenance services for the Distribution Control and Monitoring System, and facilitates repair and installation of radios, telephones and other communication equipment and systems.
California health regulations require that property owners, who have the possibility of a cross connection occurring on their property, prevent any potential backflow by installing a backflow prevention device, either a "double-check valve" or a "reduced-pressure principle assembly."