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 >
Requested written comments to waterqualitystandards@azdeq.gov by Sept. 28, 2018.
Stakeholder meeting information | View Meetings >

Docket Opening:
Friday, Feb. 1, 2019
Rule: 25 AAR 273 | View/Download >

Proposed Rulemaking:
Friday, Feb. 1, 2019
Rule: 25 AAR 177 | View/Download > 

Public Hearing:
Date: Thursday, March 28, 2019
Time: 9:30 a.m.
Location: ADEQ, Room 3175
                  1110 W. Washington St.
                  Phoenix, AZ 85007

Close of Comment Period:
Date: Thursday, March 28, 2019
Time: 5 p.m.
Send written comments:

By email to waterqualitystandards@azdeq.gov
By mail to: Water Quality Standards
                     1110 W. Washington Street
                      Phoenix, AZ 85007