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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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09/19/19 - COMMENT PERIOD BEGINS | Proposed Renewal of AZPDES Permit (AZ0025798) Coverage for the Frito-Lay Casa Grande Facility
On Thursday, Sept. 19, 2019,... See Notice
10/19/19 - COMMENT PERIOD ENDS | Proposed Renewal of AZPDES Permit (AZ0025798) Coverage for the Frito-Lay Casa Grande Facility
On Saturday, Oct. 19, 2019,... See Notice
09/18/19 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for Cyprus Copperstone Gold Mine
On Wednesday, Sept. 18, 2019... See Notice
10/18/19 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for Cyprus Copperstone Gold Mine
On Friday, Oct. 18, 2019, the... See Notice
10/17/19 - COMMENT PERIOD ENDS | Proposed Renewal of AZPDES Permit (AZ0025771) for the City of Willcox Wastewater Treatment Plant
On Thursday, Oct. 17, 2019,... See Notice
09/18/19 - COMMENT PERIOD BEGINS | Proposed Renewal of AZPDES Permit (AZ0025771) for the City of Willcox Wastewater Treatment Plant
On Wednesday, Sept. 18, 2019... See Notice

New Events | Meetings | Hearings

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09/10/19 - PUBLIC MEETING | On-site Wastewater Advisory Committee (OWAC) :
... See Event Details
09/12/19 - PUBLIC MEETING - UPDATED | Solicitation of Remedial Objectives & CAB Meeting for the East Central Phoenix 48th Street & Indian School Road WQARF Site :

ADEQ is holding... See Event Details

09/16/19 - PUBLIC MEETING | Regional Haze Stakeholder Meeting :

ADEQ has... See Event Details

09/17/19 - STAKEHOLDER MEETING | Clean Water Act § 404 State Assumption | Flagstaff :

ADEQ has drafted... See Event Details

09/19/19 - STAKEHOLDER MEETING | Clean Water Act § 404 State Assumption | Phoenix :

ADEQ has drafted... See Event Details

09/20/19 - STAKEHOLDER MEETING | Clean Water Act § 404 State Assumption | Tucson :

ADEQ has drafted... See Event Details

09/25/19 - PUBLIC EVENT | Pollution Prevention and Solid and Hazardous Waste Workshop | Flagstaff :

Interested... See Event Details

09/25/19 - PUBLIC MEETING | Highway 260 and Main Street CAB Meeting :

ADEQ is holding... See Event Details