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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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07/07/23 - COMMENT PERIOD ENDS | Renewal of Air Quality Control Permit for Musket Winslow Terminal in Navajo County
On July 7, 2023, the public... See Notice
06/06/23 - COMMENT PERIOD BEGINS | Renewal of Air Quality Control Permit for the Musket Winslow Terminal in Navajo County
On June 6, 2023, the public... See Notice
07/02/23 - COMMENT PERIOD ENDS | Renewal of Air Quality Control Permit for Novo Biopower Generating Facility in Navajo County
On July 2, 2023, the public... See Notice
06/02/23 - COMMENT PERIOD BEGINS | Renewal of Air Quality Control Permit for Novo Biopower Generating Facility in Navajo County
On June 2, 2023, the public... See Notice
06/30/23 - EXTENDED | COMMENT PERIOD ENDS | Proposed Arizona Pollutant Discharge Elimination System (AZPDES) Incorporation of Federal Rules
ADEQ is extending the public... See Notice
05/30/23 - EXTENDED | COMMENT PERIOD BEGINS | Proposed Arizona Pollutant Discharge Elimination System (AZPDES) Incorporation of Federal Rules
ADEQ is extending the public... See Notice

New Events | Meetings | Hearings

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06/07/23 - WORKSHOP | Wastewater Treatment and Collection: In-Person Operator Certification Training | FLAGSTAFF :

ADEQ invites... See Event Details

06/08/23 - VIRTUAL STAKEHOLDER MEETING | Arizona Aquifer Water Quality Standards Rulemaking :

ADEQ is holding... See Event Details

06/09/23 - PUBLIC MEETING | Notice of Virtual Public Meeting and Possible Executive Session AZOGCC :
... See Event Details
06/14/23 - WORKSHOP | Wastewater Treatment and Collection: In-Person Operator Certification Training | TUCSON :

ADEQ invites... See Event Details

06/15/23 - PUBLIC HEARING | SIP Revision, Modification of Air Quality Control Permit for ASARCO–Hayden in Gila County, and GEP Demo Study :

ADEQ is holding... See Event Details

06/21/23 - WORKSHOP | Wastewater Treatment and Collection: In-Person Operator Certification Training | PHOENIX :

ADEQ invites... See Event Details

07/11/23 - WEBINAR | Waste Determination: When is a waste a hazardous waste? :

... See Event Details