Water Quality Programs

Image of water taken under the water with a close-up of air bubbles rasing to the surface

Public Notice | Call for Comments on 2016 Clean Water Act Assessment

ADEQ invites stakeholders to review and provide comments on its 2016 Clean Water Act Assessment. ADEQ's 2016 Clean Water Act Assessment describes the water quality of Arizona’s streams and lakes. It determines whether a water can be used safely for drinking water, recreation, fish consumption, irrigation, and/or livestock watering, and whether it protects both aquatic life and wildlife.  

ADEQ's 2016 Clean Water Act Assessment now is available for formal public comment.

View Assesed Water Map > 


Public Comment Period

The 45-day formal public comment period begins Mon., June 13, 2016 and ends Thurs., July 28, 2016.


How to Submit Comments

Please submit your comments via e-mail or mail and include your name, mailing address, and if available, e-mail address.


Email to: [email protected]

or Mail to:

Arizona Department of Environmental Quality

Attn: Aiko Condon

1110 West Washington Street

Phoenix, AZ 85007


Comments Deadline and Next Steps

Submit your comments to ADEQ no later than July 28, 2016. Shortly after the close of the public comment period, ADEQ will publish a response to comments in the Arizona Administrative Register.

ADEQ appreciates your interest and participation in improving Arizona’s surface and groundwater quality. ADEQ appreciates your interest and participation in improving the quality of Arizona’s surface water and groundwater.


For Questions Contact:

Aiko Condon, (602) 771-4448

[email protected]

Please click the following links to view the 2016 Clean Water Act Assessment

2016 Clean Water Act Assessment including Methods and Technical Support | View >

Watershed Assessments

Appendix A – Alphabetical List of Waters Included in the Assessment | View > 

Appendix B –  Waters Grouped by Assessment Category | View > 

Appendix C –  Impaired Waters List | View > 

Appendix D –  Critical Conditions  | View > 

Appendix E –  Delisting Impairments | View > 

Appendix F –   Water Quality Improvements |  View > 

Appendix G –   TMDL Priority Ranking | View > 

Delist Reports

  • Gila River for Boron and Selenium  | View > 
  • Tonto Creek for Nitrogen  | View > 
  • East Verde for Arsenic  | View > 
  • East Verde for Selenium  | View > 

View the Previous Assessment for 2012/2014 | View Now >