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Utilities on the Navajo Nation

Navajo Tribal Utility Authority (NTUA), through transmission agreements, is a multi-utility provider to the residents, schools, government entities, and businesses on the Navajo Nation. NTUA provides essential electric, natural gas, water, and wastewater services on the reservation from northeastern Arizona, northwestern New Mexico, and southeastern Utah.

The NTUA is completing its mapping project--a new Geographical Information System (GIS). The GIS will greatly enhance its ability to provide services at the lowest reasonable cost to customers.

Service Providers:

Electric power - purchased from Tucson Electric Power, PacifiCorp, Public Service Company of New Mexico, and Western Area Power Administration. The rates for electrical services are lower than rates provided by other utilities in communities surrounding the Navajo Nation.

Natural gas - provided by El Paso Marketing, which delivers cost-efficient gas to delivery points in New Mexico and Arizona.

Water – over $230 million in water and wastewater infrastructure improvements have been made by the U.S. Indian Health Services on the Navajo Reservation. Water rates are competitive and equal to or slightly higher than rates in the surrounding municipalities.

Telecommunications - The Navajo Communications Company (NCC) currently provides the majority of telephone services via the Frontier Company. NCC’s central office switches and inter-exchange network are 100% digital. It has 630 miles of aerial cable and 870 miles of fiber optics with approximately the same growth capacity available within the next three years.

There are also a number of cellular providers throughout the reservation, such as Alltel and Qwest Communications. For further information contact the following utility providers:

Navajo Tribal Utility Authority
PO Box 170
Fort Defiance, AZ 86504
(928) 729-5721




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