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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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09/18/20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for North Regional Wastewater Treatment Plant in Mohave County
On Friday, Sept. 18, 2020,... See Notice
10/17/20 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for North Regional Wastewater Treatment Plant in Mohave County
On Saturday, Oct. 17, 2020,... See Notice
09/18/20 - COMMENT PERIOD BEGINS | No Further Action Determination for the Properties Adjacent to Former US CBP Firing Range
On Friday, Sept. 18, 2020,... See Notice
10/19/20 - COMMENT PERIOD ENDS | No Further Action Determination for the Properties Adjacent to Former US CBP Firing Range
On Monday, Oct. 19, 2020, the... See Notice
09/17/20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a State Water Quality Certification of a Federal Action to City of Phoenix
On Thursday, Sept. 17, 2020,... See Notice
10/19/20 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a State Water Quality Certification of a Federal Action to City of Phoenix
On Monday, Oct. 19, 2020, the... See Notice

New Events | Meetings | Hearings

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09/09/20 - PUBLIC HEARING | Preliminary Decision to Issue a Significant Amendment to an APP for Florence Copper Project :

ADEQ is holding... See Event Details

09/14/20 - WEBINAR | Tribal Nation Information Session | Initial Screening Toolkit for Permittees :

Tribal Nation... See Event Details

09/15/20 - WEBINAR | Initial Screening Toolkit for Permittees :

Clean Water Act... See Event Details

09/22/20 - WEBINAR | Regional Haze Stakeholder Meeting :

ADEQ is holding... See Event Details

09/29/20 - WEBINAR | Safe Drinking Water Rule Review for Owners/Operators/Managers of Water Systems :

ADEQ is holding... See Event Details

10/15/20 - PUBLIC MEETING | West Central Phoenix CAB Meeting :
... See Event Details
10/27/20 - WEBINAR | Safe Drinking Water Rule Review for Owners/Operators/Managers of Public Water Systems :

ADEQ is holding... See Event Details

12/01/20 - WEBINAR | Safe Drinking Water Rule Review for Owners/Operators/Managers of Water Systems :

ADEQ is holding... See Event Details