Public utilities provide electric, gas, water or telephone service to customers in a specified area. Utilities have a duty to provide safe and adequate service on reasonable terms to anyone who lives within the service area on without discriminating between customers. Because most utilities operate in near monopolistic conditions, they can be heavily regulated by local, state, and federal authorities. Generally, the local and state agencies are called Public Service Commissions (PSC) or Public Utility Commissions (PUC). Municipal Utilities and Rural Electric Cooperatives may be unregulated though.
Tuba City is a census-designated place (CDP) in Coconino County, Arizona, United States. The population was 8,225 at the 2000 census. It is the Navajo Indian Reservation's largest community, slightly larger than Shiprock, New Mexico. The Hopi town of Moenkopi lies directly to its southeast. The name of the town honors Tuuvi, a Hopi headman from Oraibi. The Navajo name for Tuba City, Tó Naneesdizí translates as “tangled waters” which probably refers to the many springs below the surface of the ground which are the source of several reservoirs. Tuba City is located within the Painted Desert on the western side of the Navajo Nation. The town is situated on U.S. Route 160, near the junction with Arizona State Route 264. Tuba City is located about 50 miles from the eastern entrance to Grand Canyon National Park. Most of Tuba City's residents are Navajo, with a small Hopi minority.