• Ozone High Pollution Advisory Issued in the Phoenix Area for July 27, 2021
  • Ozone High Pollution Watch Issued in the Phoenix Area for July 28, 2021
  • UST reporting now available in myDEQ - Click to learn more and register for an account today
  • Learn ways you can help protect Arizona waters

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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07/15/21 - COMMENT PERIOD BEGINS | Proposed Significant Amendment to an APP for Redhawk Power Plant — Surface Impoundments Facility
On Thursday, July 15, 2021,... See Notice
08/13/21 - COMMENT PERIOD ENDS | Proposed Significant Amendment to an APP for Redhawk Power Plant — Surface Impoundments Facility
On Aug. 13, 2021, the public... See Notice
08/13/21 - COMMENT PERIOD ENDS | Proposed Water Quality Assurance Revolving Fund Site Listing for 51st Avenue and Camelback Road
On Friday, Aug. 13, 2021, the... See Notice
07/15/21 - COMMENT PERIOD BEGINS | Proposed Water Quality Assurance Revolving Fund Site Listing for 51st Avenue and Camelback Road
On Thursday, July 15, 2021,... See Notice
07/12/21 - COMMENT PERIOD BEGINS | Proposed Leaking UST Release Case Closure for Case File 0322.01 in Willcox, Arizona
On July 12, 2021, the public... See Notice
08/11/21 - COMMENT PERIOD ENDS | Proposed Leaking UST Release Case Closure for Case File 0322.01 in Willcox, Arizona
On Aug. 11, 2021, the public... See Notice

New Events | Meetings | Hearings

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07/26/21 - WEBINAR | UST Applications in myDEQ | Suspected Release :

ADEQ invites... See Event Details

07/28/21 - PUBLIC MEETING | Agricultural Best Management Practices Committee :

ADEQ is holding... See Event Details

07/28/21 - VIRTUAL MEETING | LCRR Focus Group - Lead Service Line & Materials Inventories :

ADEQ's Safe... See Event Details

07/29/21 - WEBINAR | Safe Drinking Water Rule Review for Owners/Operators/Managers of Water Systems :

ADEQ is holding... See Event Details

08/05/21 - STAKEHOLDER MEETING | Opportunity to Provide Feedback for ADEQ's Drinking Water Program :

ADEQ is offering... See Event Details

08/05/21 - STAKEHOLDER MEETING | ADEQ Talks Surface Water Quality :

ADEQ invites... See Event Details

08/09/21 - PUBLIC HEARING | Preliminary Decision to Issue a New Aquifer Protection Permit for Pinyon Plain Mine in Coconino County :

ADEQ is holding... See Event Details

08/26/21 - WEBINAR | Funding Workshop for Water System Owners/Operators/Managers :

ADEQ is holding... See Event Details