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  • Learn ways you can help protect Arizona waters
  • Sanitary sewer overflow (SSO) and bypass reporting goes paperless with 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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06/27/22 - COMMENT PERIOD ENDS | AZPDES Renewal Permit for Valle Airpark Wastewater Reclamation Facility in Coconino County
On June 27, 2022, the public... See Notice
05/25/22 - COMMENT PERIOD BEGINS | AZPDES Renewal Permit for Valle Airpark Wastewater Reclamation Facility in Coconino County
On May 25, 2022, the public... See Notice
06/27/22 - COMMENT PERIOD ENDS | AZPDES Renewal Permit for Bison Ranch Wastewater Treatment Plant in Navajo County
On June 27, 2022, the public... See Notice
05/25/22 - COMMENT PERIOD BEGINS | AZPDES Renewal Permit for Bison Ranch Wastewater Treatment Plant in Navajo County
On May 25, 2022, the public... See Notice
05/20/22 - COMMENT PERIOD BEGINS | Proposed Leaking UST Case Closure for Texaco # 60-349-1032 in Phoenix, Arizona
On May 20, 2022, the public... See Notice
06/20/22 - COMMENT PERIOD ENDS | Proposed Leaking UST Case Closure for Texaco # 60-349-1032 in Phoenix, Arizona
On June 20, 2022, the public... See Notice

New Events | Meetings | Hearings

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05/26/22 - STAKEHOLDER MEETING | Regional Haze Nonpoint Rulemaking: Second Implementation Period :

ADEQ invites... See Event Details

06/06/22 - PUBLIC MEETING | 51st Avenue and Camelback Road WQARF Site CAB Meeting :
... See Event Details
06/15/22 - PUBLIC MEETING | Highway 260 and Main Street WQARF Site CAB Meeting in Cottonwood, Arizona :
... See Event Details
06/21/22 - WEBINAR | Rate Setting and Long-Term Planning for Small Water System Owners/Operators/Managers :

... See Event Details

07/21/22 - WEBINAR | 10 Tips for Submitting a Complete Air Quality Permit Application :

Does... See Event Details