An official website of the United States government.

We've made some changes to 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.

Indiana NPDES Permits

In Indiana, EPA has delegated authority to issue NPDES permits to the Indiana Department of Environmental Management.

Related information: NPDES Petition for Program Withdrawal in Indiana

For state-issued permits, visit Indiana's Wastewater Permitting Program Exit