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Our Mission

To protect and enhance public health and the environment.

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Welcome to ADEQ

New Public Notices

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12/30/22 - COMMENT PERIOD ENDS | Modification of AZPDES Permit #AZ0020249 for Pinal Creek Wastewater Treatment Plant in Gila County
On Dec. 30, 2022, the public... See Notice
11/30/22 - COMMENT PERIOD BEGINS | Modification of AZPDES Permit #AZ0020249 for Pinal Creek Wastewater Treatment Plant in Gila County
On Nov. 30, 2022, the public... See Notice
11/29/22 - COMMENT PERIOD ENDS | Significant Amendment to Individual Aquifer Protection Permit for the Johnson Camp Mine in Cochise County
On Dec. 29, 2022, the public... See Notice
11/29/22 - COMMENT PERIOD BEGINS | Significant Amendment to Individual Aquifer Protection Permit for the Johnson Camp Mine in Cochise County
On Nov. 30, 2022, the public... See Notice
12/29/22 - COMMENT PERIOD ENDS | Proposed 401 State Water Quality Certification for the Ruby Road Bridge Project in Santa Cruz County
On Dec. 29, 2022, the public... See Notice
11/29/22 - COMMENT PERIOD BEGINS | Proposed 401 State Water Quality Certification for the Ruby Road Bridge Project in Santa Cruz County
On Nov. 29, 2022, the public... See Notice

New Events | Meetings | Hearings

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12/07/22 - PUBLIC MEETING | Lake Havasu City WQARF Sites Community Meeting :

... See Event Details

12/12/22 - PUBLIC HEARING | Renewal of AZPDES Permit AZ0026387 for the January Mine Hermosa Project Water Treatment Plant in Santa Cruz County :

ADEQ is holding... See Event Details

12/20/22 - PUBLIC HEARING | Hazardous Waste Fees Rulemaking :

... See Event Details