• Give the Gift of Clean Air
  • 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.

Welcome to ADEQ

New Public Notices

11/27/20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to U.S. Army Garrison in Yuma
On Friday, Nov. 27, 2020, the... See Notice
12/26/20 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to U.S. Army Garrison in Yuma
On Saturday, Dec. 26, 2020,... See Notice
11/27/20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for Pinewood Sanitary District Wastewater Treatment Plant in Coconino County
On Friday, Nov. 27, 2020, the... See Notice
12/26/20 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for Pinewood Sanitary District Wastewater Treatment Plant in Coconino County
On Saturday, Dec. 26, 2020,... See Notice
11/19/20 - COMMENT PERIOD BEGINS | Proposed Renewal of AZPDES Permit (AZS000005) for the City of Tempe MS4
On Thursday, Nov. 19, 2020,... See Notice
12/18/20 - COMMENT PERIOD ENDS | Proposed Renewal of AZPDES Permit (AZS000005) for the City of Tempe MS4
On Friday, Dec. 18, 2020, the... See Notice

New Events | Meetings | Hearings

11/05/20 - WORKSHOP | Biohazardous Medical Waste Rulemaking :

ADEQ is holding... See Event Details

11/06/20 - STAKEHOLDER MEETING | Protecting Arizona Surface Waters Webinar :

The following... See Event Details

11/12/20 - WEBINAR | Asset Inventory and Mapping for Small Water System Owners/Operators/Managers :

ADEQ invites... See Event Details

11/12/20 - WEBINAR | myDEQ: Account Setup and Applications :

ADEQ is holding... See Event Details

11/12/20 - PUBLIC HEARING | Proposed Yuma Ozone Marginal SIP Revision :

ADEQ is holding... See Event Details

11/17/20 - PUBLIC MEETING | On-site Wastewater Advisory Committee (OWAC) :
11/19/20 - WEBINAR | myDEQ: UST Notifications Demonstration :

ADEQ is holding... See Event Details

11/19/20 - PUBLIC MEETING | East Central Phoenix WQARF Sites CAB Meeting :