• Why emissions testing is essential
  • emissions testing is essential
  • ADEQs Path Forward | COVID-19
  • Learn ways you can help protect Arizona waters
  • House Bill 2704 Enhances Underground Storage Tanks Financial Assistance Programs. Click to Learn More.
  • Sanitary sewer overflow (SSO) and bypass reporting goes paperless with myDEQ

Welcome to ADEQ

New Public Notices

08/18/20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for Oracle Ridge Mine Tailing Storage Facility
On Monday, Aug. 18, 2020, the... See Notice
09/16/20 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for Oracle Ridge Mine Tailing Storage Facility
On Wednesday, Sept. 16, 2020... See Notice
08/06/20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for Florence Copper Project
On Thursday, Aug. 6, 2020,... See Notice
09/11/20 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for Florence Copper Project
On Friday, Sept. 11, 2020,... See Notice
08/06/20 - PUBLIC NOTICE | Record of Decision Available for West Central Phoenix — North Plume WQARF Site
ADEQ has issued a record of... See Notice
08/04/20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for the White Mountain Lake WWTP
On Tuesday, Aug. 4, 2020, the... See Notice

New Events | Meetings | Hearings

07/17/20 - PUBLIC MEETING | Notice of Public Meeting and Possible Executive Session AOGCC :
07/21/20 - WORKSHOP | Hazardous Waste Rule Update :

ADEQ is holding... See Event Details

08/26/20 - PUBLIC MEETING | Miracle Mile CAB Meeting :

ADEQ is holding... See Event Details

08/26/20 - PUBLIC HEARING | Preliminary Decision to Issue an Individual APP for Prize Energy Resources :

ADEQ is holding... See Event Details

08/27/20 - WEBINAR | Asset Management and Technical Assistance for Owners/Operators/Managers of Small Water Systems :

ADEQ is holding... See Event Details

08/28/20 - WEBINAR | Arizona Groundwater/Wastewater System Operators :

ADEQ is holding... See Event Details

09/02/20 - PUBLIC MEETING | Park-Euclid / 7th Street and Arizona Avenue / Stone Avenue and Grant Road WQARF Sites CAB Meeting :
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