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.

National Pollutant Discharge Elimination System (NPDES)

NMFS Listed Resources of Concern Materials

Lists and/or maps of states, affected counties, watersheds, or waters for NMFS listed resources of concern.

Idaho

Washington

Oregon

California

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