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.

National Pollutant Discharge Elimination System (NPDES)

Updates to NPDES eRule Data Elements to Reflect MS4 General Permit Remand Rule - Pre-Publication Version

EPA has finalized updates to specific data elements within the NPDES Electronic Reporting Rule (96 pp, 1 MB, About PDFthat apply to regulated MS4s. These changes are necessary to reflect the changes made to the Phase II stormwater rule by the promulgation of the MS4 General Permit Remand Rule (33 pp, 367 K, About PDF). Below is the pre-publication version of the rule.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.