Draft and Proposed Rule - Water Quality Division

Surface Water Quality Standards (18 Arizona Administrative Code 11, Article 1)

The Clean Water Act requires that Arizona establish surface water quality standards and review them every three years. This review process is known as the triennial review. ADEQ is currently undergoing a triennial review of its surface water quality water quality standards and proposes modifying some of the rules in Title 18, Chapter 11, Article 1 | View Triennial Review Rulemaking Page >

Informal Draft Proposed Rule for Stakeholder Input:
Draft proposed rule document | View/Download >
Send written comments to waterqualitystandards@azdeq.gov by September 28, 2018.
Stakeholder meeting information | View Meetings >