| Surface water quality standards are one of the cornerstones of the Clean Water Act. These standards define the water quality goals for Arizona streams and lakes. The standards also provide the basis for a water quality-based approach to controlling discharges of pollutants to surface waters.
New! Notice of Final Rulemaking for Surface Water Quality Standards Submission to GRRC for Dec. 2, 2008 meeting
[Note: This is not a final rule until approved by GRRC and filed with the Secretary of State under A.R.S. § 41-1-31(A)]
Triennial Review of Surface Water Quality Standards
ADEQ's proposed revisions to the surface water quality standards were published in the Arizona Administrative Register on April 4, 2008. The Notice of Proposed Rulemaking is available for downloading from the Office of the Secretary of State  .
Draft Implementation Procedures Documents
ADEQ has written four documents which provide background information on how the proposed antidegradation, narrative bottom deposits, narrative nutrient standard, and the biocriteria rules were developed, their rationale, and how each is implemented through ADEQ water quality management programs:
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Last Revision
Nov. 14, 2008