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Our Mission

To protect and enhance public health and the environment.

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Welcome to ADEQ

New Public Notices

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10/31/22 - COMMENT PERIOD ENDS | Renewal AZPDES Permit to Motorola Solutions Inc. for North Indian Bend Wash GAC Treatment Facility in Maricopa County
On Oct. 31, 2022, the public... See Notice
09/30/22 - COMMENT PERIOD BEGINS | Renewal AZPDES Permit to Motorola Solutions Inc. for North Indian Bend Wash GAC Treatment Facility in Maricopa County
On Sept. 30, 2022, the public... See Notice
10/28/22 - COMMENT PERIOD ENDS | Renewal AZPDES Permit for Grand Canyon National Park North Rim Wastewater Treatment Plant in Coconino County
On Oct. 28, 2022, the public... See Notice
09/28/22 - COMMENT PERIOD BEGINS | Renewal AZPDES Permit for Grand Canyon National Park North Rim Wastewater Treatment Plant in Coconino County
On Sept. 28, 2022, the public... See Notice
10/28/22 - COMMENT PERIOD ENDS | Air Quality Renewal Permit for Springerville Generating Station in Apache County
On Oct. 28, 2022, the public... See Notice
09/29/22 - COMMENT PERIOD BEGINS | Air Quality Renewal Permit for Springerville Generating Station in Apache County
On Sept. 29, 2022, the public... See Notice

New Events | Meetings | Hearings

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09/28/22 - PUBLIC MEETING | Central Phoenix WQARF Sites CAB Meeting :
... See Event Details
10/17/22 - UPDATED | PUBLIC HEARING | SIP Supplement for CAA § 110(a)(2): Implementation of the SO2 NAAQS :

... See Event Details

10/17/22 - PUBLIC HEARING | Surface Water Protection Program (SWPP) Rulemaking :

ADEQ is holding... See Event Details

10/28/22 - PUBLIC HEARING | Air Quality Renewal Permit for Springerville Generating Station in Apache County :

ADEQ is holding... See Event Details