• October is Children's Environmental Health Month - Click to Learn About Helping Your Community Become More Air Aware
  • 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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10/18/18 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for ASARCO Mission Mine Complex
On Thursday, Oct. 18, 2018,... See Notice
11/18/18 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for ASARCO Mission Mine Complex
On Nov. 18, 2018, the public... See Notice
10/18/18 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for City of Chandler Water Reclamation Facility
On Thursday, Oct. 18, 2018,... See Notice
11/18/18 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for City of Chandler Water Reclamation Facility
On Nov. 18, 2018, the public... See Notice
11/19/18 - COMMENT PERIOD ENDS | Proposed Renewal of AZPDES Permit (AZ0025453) Coverage for Hassayampa Ranch Water Reclamation Facility
On Nov. 19, 2018, the public... See Notice
10/18/18 - COMMENT PERIOD BEGINS | Proposed Renewal of AZPDES Permit (AZ0025453) Coverage for Hassayampa Ranch Water Reclamation Facility
On Thursday, Oct. 18, 2018,... 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 :
... See Event Details