• Drinking Water monitoring and reporting violations are going paperless - contact a coordinator to confirm your system's email address
  • Save up to $900 on emissions-related repairs using the Voluntary Vehicle Repair Program
  • UST reporting now available in myDEQ - Click to learn more and register for an account today
  • 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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01/25/22 - COMMENT PERIOD BEGINS | Proposed Leaking UST Case Closure for 3Bs Truck & Auto Plaza in Winslow, Arizona
On Jan. 25, 2022, the public... See Notice
02/24/22 - COMMENT PERIOD ENDS | Proposed Leaking UST Case Closure for 3Bs Truck & Auto Plaza in Winslow, Arizona
On Feb. 24, 2022, the public... See Notice
02/24/22 - COMMENT PERIOD ENDS | Proposed AZPDES Renewal Permit for Big Park Wastewater Treatment Plant in Sedona, Arizona
On Feb. 24, 2022, the public... See Notice
01/25/22 - COMMENT PERIOD BEGINS | Proposed AZPDES Renewal Permit for Big Park Wastewater Treatment Plant in Sedona, Arizona
On Jan. 25, 2022, the public... See Notice
01/25/22 - COMMENT PERIOD BEGINS | Proposed Leaking UST Case Closure for Automat Quick Lube in Prescott, Arizona
On Jan. 25, 2022, the public... See Notice
02/24/22 - COMMENT PERIOD ENDS | Proposed Leaking UST Case Closure for Automat Quick Lube in Prescott, Arizona
On Feb. 24, 2022, the public... See Notice

New Events | Meetings | Hearings

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01/27/22 - WEBINAR | Demo of New Upcoming Features in myDEQ :

Based on your... See Event Details

01/31/22 - PUBLIC HEARING | Proposed Expedited Air Quality Rulemaking :

ADEQ is holding... See Event Details

02/14/22 - VIRTUAL PUBLIC HEARING | Proposed Underground Injection Control Program Rulemaking :

ADEQ is holding... See Event Details

02/18/22 - PUBLIC HEARING | Proposal to Renew the Hot Mix Asphalt Plant Air Quality General Permit :

ADEQ has... See Event Details

02/18/22 - PUBLIC HEARING | Proposal to Renew the Crushing and Screening Plant Air Quality General Permit :

ADEQ has... See Event Details

02/23/22 - PUBLIC HEARING | Proposed Significant Revision to Air Quality Permit for Tucson Electric Power Company :

ADEQ has... See Event Details

03/08/22 - PUBLIC MEETING | Draft Remedial Investigation Report for ChemResearch Facility at West Van Buren WQARF Site :

ADEQ released... See Event Details