An official website of the United States government.
We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.
In Iowa, EPA has delegated authority to issue NPDES permits to the Iowa Dept. of Natural Resources.
For state-issued permits, visit Iowa Dept. of Natural Resources NPDES Wastewater Permitting Exit
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