Our Mission

To protect and enhance public health and the environment.

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Welcome to ADEQ

New Public Notices

Feb.17 - COMMENT PERIOD ENDS | Proposed AZPDES Renewal Permit for Utility Source
On Feb. 17, 2017, the public comment period will end for the proposed issuance of an Arizona Pollutant... See Notice
Feb.21 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a State Water Quality Certification of a Federal Action to the Arizona Department of Transportation
On Feb. 21, 2017, the public comment period will end for the decision to issue a state water quality... See Notice
Jan.18 - COMMENT PERIOD BEGINS | Proposed AZPDES Renewal Permit for Utility Source
On Wednesday, Jan. 18, 2017, the public comment period began for the proposed issuance of an Arizona... See Notice
Jan.20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a State Water Quality Certification of a Federal Action to Arizona Department of Transportation
On Friday, Jan. 20, 2017, the public comment period began for the decision to issue a conditional State 401... See Notice
Jan.18 - COMMENT PERIOD BEGINS | Proposed AZPDES New Permit for Big Park Domestic Wastewater Improvement District
On Wednesday, Jan. 18, 2017, the public comment period began for the proposed issuance of an Arizona... See Notice
Feb.17 - COMMENT PERIOD ENDS | Proposed AZPDES New Permit for Big Park Domestic Wastewater Improvement District
On Feb. 17, 2017, the public comment period will end for the proposed issuance of an Arizona Pollutant... See Notice

New Events | Meetings | Hearings

Jan.10 - PUBLIC MEETING | On-site Wastewater Advisory Committee (OWAC) :
ADEQ is holding this public meeting for the On-site Wastewater... See Event
Jan.31 - PUBLIC MEETING | Miracle Mile CAB Meeting :
ADEQ is holding this public meeting to discuss the Miracle Mile Water... See Event
Jan.6 - PUBLIC MEETING | Notice of Public Meeting and Possible Executive Session OGCC :
ADEQ is holding this public meeting for Arizona Oil and Gas... See Event
Jan.5 - Public Meeting | Proposed Changes to Arizona Emissions Bank :
ADEQ, in partnership with the Maricopa County Air Quality Department... See Event