Antidegradation

Antidegradation refers to federal regulations designed to maintain and protect high quality waters and existing water quality in other waters from unnecessary pollution.

Background and Additional Reference
Introduction to Antidegradation  
Iowa Antidegradation Implementation Procedure (2-17-10) 
List of Scenarios
Frequently Asked Questions  
EPA Interim Economic Guidance for Water Quality Standards  


Antidegradation Forms and Information


Examples:
Other:

Questions? Contact:
Larry Bryant at larry.bryant@dnr.iowa.gov or 515-725-8426


Outstanding Iowa Waters
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