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ADEQ Commemorates 40 Years

Revised On: May. 7th, 2026 - 07:49 am

ADEQ celebrates 40 years of the passage of the Environmental Quality Act. This landmark legislation, enacted on May 13, 1986, established the Arizona Department of Environmental Quality on July 1, 1987, launching four decades of environmental stewardship.

ADEQ Main Office
1110 W. Washington St.
Phoenix, AZ 85007

602-771-2300 — General Information
800-234-5677 — Toll-Free
711 — Teleprinter Services

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Southern Regional Office (SRO) >
400 W. Congress St., Suite 433
Tucson, AZ 85701

520-628-6733 — General Information
888-271-9302 — Toll-Free

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