Iowa DNR

Water Quality Assessments

Impaired Waters List


The ADBNet Reference Codex contains documentation and helpful descriptions of various aspects of the 305(b) assessment program.

Understanding Impaired Waters

Federal Requirements - Water Quality Reporting

About Impaired Waters

Integrated Report Categories

WINOFI - Waters In Need Of Further Investigation

Designated Uses

Credible Data Law

TMDL Prioritization

This page was created 1/8/2016 12:49:10 PM and was last updated 2/6/2018 2:39:27 PM