Our Mission
Welcome to ADEQ
New Public Notices
07/02/23 - COMMENT PERIOD ENDS | Renewal of Air Quality Control Permit for Novo Biopower Generating Facility in Navajo County
On July 2, 2023, the public... See Notice
06/02/23 - COMMENT PERIOD BEGINS | Renewal of Air Quality Control Permit for Novo Biopower Generating Facility in Navajo County
On June 2, 2023, the public... See Notice
06/30/23 - EXTENDED | COMMENT PERIOD ENDS | Proposed Arizona Pollutant Discharge Elimination System (AZPDES) Incorporation of Federal Rules
ADEQ is extending the public... See Notice
05/30/23 - EXTENDED | COMMENT PERIOD BEGINS | Proposed Arizona Pollutant Discharge Elimination System (AZPDES) Incorporation of Federal Rules
ADEQ is extending the public... See Notice
06/29/23 - COMMENT PERIOD ENDS | Proposed 401 State Water Quality Certification for Daytona 4 Wash Stabilization in Lake Havasu, Arizona
On June 29, 2023, the public... See Notice
05/30/23 - COMMENT PERIOD BEGINS | Proposed 401 State Water Quality Certification for Daytona 4 Wash Stabilization in Lake Havasu, Arizona
On May 30, 2023, the public... See Notice
New Events | Meetings | Hearings
06/07/23 - WORKSHOP | Wastewater Treatment and Collection: In-Person Operator Certification Training | FLAGSTAFF :
ADEQ invites... See Event Details
06/08/23 - VIRTUAL STAKEHOLDER MEETING | Arizona Aquifer Water Quality Standards Rulemaking :
ADEQ is holding... See Event Details
06/09/23 - PUBLIC MEETING | Notice of Virtual Public Meeting and Possible Executive Session AZOGCC :
06/14/23 - WORKSHOP | Wastewater Treatment and Collection: In-Person Operator Certification Training | TUCSON :
ADEQ invites... See Event Details
06/15/23 - PUBLIC HEARING | SIP Revision, Modification of Air Quality Control Permit for ASARCO–Hayden in Gila County, and GEP Demo Study :
ADEQ is holding... See Event Details
06/21/23 - WORKSHOP | Wastewater Treatment and Collection: In-Person Operator Certification Training | PHOENIX :
ADEQ invites... See Event Details
07/11/23 - WEBINAR | Waste Determination: When is a waste a hazardous waste? :