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  • ADEQ 2022 Legislative Summary Now Available
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  • Learn ways you can help protect Arizona waters
  • Air Quality Excess Emissions and Permit Deviations Reporting Now on myDEQ

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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03/03/23 - COMMENT PERIOD ENDS | Individual Aquifer Protection Permit for the Copper Basin WRF in Pinal County
On March 3, 2023, the public... See Notice
02/02/23 - COMMENT PERIOD BEGINS | Individual Aquifer Protection Permit for the Copper Basin WRF in Pinal County
On Feb. 2, 2023, the public... See Notice
01/24/23 - COMMENT PERIOD ENDS | Renewal of AZPDES Permit AZ0026107 for the Pima County Regional Wastewater Reclamation Department
On Feb. 24, 2023, the public... See Notice
01/25/23 - COMMENT PERIOD BEGINS | Renewal of AZPDES Permit AZ0026107 for the Pima County Regional Wastewater Reclamation Department
On Jan. 25, 2023, the public... See Notice
02/24/23 - COMMENT PERIOD ENDS | Significant Revision to Air Quality Control Permit for Freeport-McMoRan — Morenci in Greenlee County
On Feb. 24, 2023, the public... See Notice
01/25/23 - COMMENT PERIOD BEGINS | Significant Revision to Air Quality Control Permit for Freeport-McMoRan — Morenci in Greenlee County
On Jan. 25, 2023, the public... See Notice

New Events | Meetings | Hearings

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02/01/23 - CANCELED - PUBLIC MEETING | Miracle Mile CAB Meeting :

The Miracle Mile... See Event Details

02/08/23 - WEBINAR | Technical and Financial Assistance for Small Rural Water Systems :

ADEQ invites... See Event Details

02/16/23 - WEBINAR | Successful Biomedical Waste Management: Regulations and Technologies :

ADEQ is holding... See Event Details

02/24/23 - PUBLIC MEETING | Arizona Regulatory Roadshow: The Bed, Bank & Beyond :

 ADEQ is co-... See Event Details

03/02/23 - PUBLIC MEETING | 56th Street and Earll Drive WQARF Site in Phoenix, Arizona :

ADEQ is holding... See Event Details

05/19/23 - PUBLIC EVENT | Water Utility Leadership Forum presented by NAMWUA :

Northern Arizona... See Event Details