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  • House Bill 2704 Enhances Underground Storage Tanks Financial Assistance Programs. Click to Learn More.
  • Sanitary sewer overflow (SSO) and bypass reporting goes paperless with myDEQ
  • Arsenic Workshop for Owners, Operators and Managers of Water Systems
  • Air Quality Excess Emissions and Permit Deviations Reporting Now on myDEQ
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  • Pollution Prevention (P2) Planning is going 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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11/20/19 - COMMENT PERIOD BEGINS | Proposed Revision to SIP: New Source Review — Significant Emission Rate for Ammonia in PM2.5 Nonattainment Areas
On Wednesday, Nov. 20, 2019,... See Notice
11/18/19 - COMMENT PERIOD ENDS | Proposed Revision to SIP: New Source Review — Significant Emission Rate for Ammonia in PM2.5 Nonattainment Areas
On Monday, Dec. 23, 2019, the... See Notice
11/22/19 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for the Wickenburg Ranch Water Reclamation Facility
On Friday, Nov. 22, 2019, the... See Notice
12/21/19 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for the Wickenburg Ranch Water Reclamation Facility
On Saturday, Dec. 21, 2019,... See Notice
11/18/19 - COMMENT PERIOD BEGINS | Miller Valley Road and Hillside Avenue WQARF Site Draft Remedial Investigation Report and Solicitation of Remedial Objectives
On Monday, Nov. 18, 2019, the... See Notice
01/17/20 - COMMENT PERIOD ENDS | Miller Valley Road and Hillside Avenue WQARF Site Draft Remedial Investigation Report and Solicitation of Remedial Objectives
On Jan. 17, 2020, the public... See Notice

New Events | Meetings | Hearings

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11/20/19 - PUBLIC MEETING | Motorola 52nd Street Superfund Site Community Information Group (CIG) Public Meeting via Webinar :

ADEQ is holding... See Event Details

12/09/19 - STAKEHOLDER MEETING | Tier II Chemical Reporting Inventory System Meeting No. 1 :

ADEQ invites you... See Event Details

12/09/19 - STAKEHOLDER MEETING | Tier II Chemical Reporting Inventory System Meeting No. 2 :

ADEQ invites you... See Event Details

12/10/19 - WORKSHOP | FREE Training for Owners and Operators of UST Systems :

ADEQ is offering... See Event Details

12/11/19 - WORKSHOP | FREE Training for Owners and Operators of UST Systems :

ADEQ is offering... See Event Details

12/12/19 - WORKSHOP | FREE Training for Owners and Operators of UST Systems :

ADEQ is offering... See Event Details

12/12/19 - STAKEHOLDER MEETING | Tier II Chemical Reporting Inventory System Meeting No. 3 :

ADEQ invites you... See Event Details

12/12/19 - PUBLIC HEARING | Proposed Revision to SIP for Miami Sulfur Dioxide (SO2) Nonattainment Area :

ADEQ welcomes... See Event Details