Antidegradation Implementation

Starting Aug. 30, 2008, all permit applications for new or expanded discharges will be required to follow the new Missouri Antidegradation Rule and Implementation Procedure. The Antidegradation Review process will be initiated by requests for water quality based effluent limits.

Antidegradation Rule and Implementation Procedure PDF Final icon.
Approved April 20, 2007 and revised on May 7, 2008.

Antidegradation Review Request Form and Process Diagram

Permit Application Forms

Policy and Guidance Documents

Publications

GIS Data

Water Quality Assessment Procedures

Additional Information