• Wildfire Smoke Forecast banner linking to forecast page with info
  • 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

10/15/20 - COMMENT PERIOD BEGINS | Preliminary Decision to Issue a Significant Amendment to an APP for the Inscription Canyon Ranch Wastewater Treatment Plant
On Thursday, Oct. 15, 2020,... See Notice
11/14/20 - COMMENT PERIOD ENDS | Preliminary Decision to Issue a Significant Amendment to an APP for the Inscription Canyon Ranch Wastewater Treatment Plant
On Saturday, Nov. 14, 2020,... See Notice
10/09/20 - COMMENT PERIOD BEGINS | Proposed Leaking UST Release Case Closure for File 0247.02 in Yuma, Arizona
On Friday, Oct. 9, 2020, the... See Notice
11/08/20 - COMMENT PERIOD ENDS | Proposed Leaking UST Release Case Closure for File 0247.02 in Yuma, Arizona
On Sunday, Nov. 8, 2020, the... See Notice
10/09/20 - COMMENT PERIOD BEGINS | Proposed Yuma Ozone Marginal SIP Revision
On Friday, Oct. 9, 2020, the... See Notice
11/12/20 - COMMENT PERIOD ENDS | Proposed Yuma Ozone Marginal SIP Revision
On Thursday, Nov. 12, 2020,... See Notice

New Events | Meetings | Hearings

10/13/20 - WEBINAR | New Source Performance Standard, Subpart OOO - Nonmetallic Minerals Processing :

ADEQ is holding... See Event Details

10/15/20 - PUBLIC MEETING | West Central Phoenix WQARF Sites Public Meeting :
10/20/20 - PUBLIC MEETING | Arizona State Emergency Response Commission (AZSERC) :

The Arizona... 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

11/03/20 - STAKEHOLDER MEETING | Seeking Input for ADEQ's Capacity Development Strategy Revision :

Water system... See Event Details

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

ADEQ is holding... 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