• Military and Out-of-State Exemptions for Vehicle Emissions Tests Are Now Online
  • Learn About Financial Assistance Opportunities with Expanded Eligibility for the Underground Storage Tank Preapproval Program & Time-Barred Claims Program
  • Click Here for a How-to Video About Registering for the Operator Certification Exam
  • Didn't Pass the Emissions Test...Don't pass this up!
  • Program Provides Reimbursement for Certain Tank Site Improvements
  • Search ADEQ Databases online

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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01/23/19 - COMMENT PERIOD BEGINS | Proposal to Issue Air Quality Control Renewal Permit No. 74605 to Nestle Purina Petcare Co.
On Jan. 23, 2019, the public... See Notice
02/21/19 - COMMENT PERIOD ENDS | Proposal to Issue Air Quality Control Renewal Permit No. 74605 to Nestle Purina Petcare Co.
On Feb. 21, 2019, the public... See Notice
02/18/19 - COMMENT PERIOD ENDS | Request for No Further Action Determination for APS Grant Street Yard VRP Site
On Feb. 18, 2019, the public... See Notice
01/18/19 - COMMENT PERIOD BEGINS | Request for No Further Action Determination for APS Grant Street Yard VRP Site
On Friday, Jan. 18, 2019, the... See Notice
01/10/19 - COMMENT PERIOD BEGINS | Proposed AZPDES Permit Renewal (AZ0025178) for the City of Casa Grande Water Reclamation Facility
On Thursday, Jan. 10, 2019,... See Notice
02/09/19 - COMMENT PERIOD ENDS | Proposed AZPDES Permit Renewal (AZ0025178) for the City of Casa Grande Water Reclamation Facility
On Saturday, Feb. 9, 2019,... See Notice

New Events | Meetings | Hearings

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10/02/18 - STAKEHOLDER MEETING | State Assumption of Clean Water Act § 404 :

ADEQ invites you... See Event Details

10/02/18 - STAKEHOLDER MEETING | 2021 Arizona Regional Haze State Implementation Plan :

ADEQ is required... See Event Details

10/10/18 - PUBLIC MEETING | Cooper Road and Commerce Avenue CAB Meeting :
... See Event Details
10/16/18 - STAKEHOLDER MEETING | Potential Voluntary Remediation Program Legislation :

ADEQ's Waste... See Event Details

10/16/18 - PUBLIC MEETING | Upper Santa Cruz River Clean Water Plan :
... See Event Details
10/17/18 - WEBINAR | Solid Waste: Used and Waste Tires :

ADEQ's Waste... See Event Details

10/25/18 - PUBLIC HEARING | Proposal to Issue Air Quality Control Permit No. 71539 to Rose Acre Farms, Inc. :

... See Event Details

10/26/18 - PUBLIC HEARING | Notice of OGCC Public Hearing for Triomphe Energy, LLC :
... See Event Details