Arizona 811 was established as “Arizona Blue Stake” in 1974 and changed its name to Arizona 811 in 2014. It is the center you must contact before excavating in any way, anywhere in Arizona, so underground utilities (also called “facilities”) can be marked. Knowing the location of buried facilities is the simplest and easiest way to prevent accidental utility strikes, which keeps everyone safe; protects the vital utilities we all rely on every day; and protects the environment. Arizona 811 is a private, non-profit agency. Services are free and available statewide. Learn more at Arizona811.com.

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