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Arizona 811 (formerly Arizona Blue Stake, Inc.) was established in 1974. We are a non-profit communication center that facilitates free pre-excavation/digging notification services and provides stakeholder education statewide to prevent injuries and damage to underground utilities in accordance with statutory requirements. Arizona law requires anyone who plans to dig in any way for any reason to contact Arizona 811 at least two full working days in advance (excludes weekends and holidays) to have all underground utilities in the area located and marked. Knowing the location of underground utilities before any type of digging is the simplest and most effective way to prevent serious injuries and reduce or eliminate damage to the utilities we all rely on every day. When a utility-location request precedes any type of digging, damage is avoided 99% of the time. Know what’s below … Call before you dig!

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