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Use Assessment & Attainability Analysis

Published by data.iowa.gov | State of Iowa | Metadata Last Checked: June 26, 2025 | Last Modified: 2023-08-30
As part of bringing Iowa’s water quality standards into compliance with the federal Clean Water Act, the Iowa Department of Natural Resources assigns designated uses to each stream and river in Iowa. This assessment process is all part of establishing new goals and levels of protection for Iowa’s water. The online database tracks the proposed designated uses for streams and rivers in Iowa that have had an use assessment/use attainability analysis (UAA) completed.

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