An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

National Aquatic Resource Surveys

Pre-publication of Notice of Availability of the report ‘National Rivers and Streams Assessment 2013-2014: A Collaborative Survey’ and Request for Comment

Anna Wildeman, Acting Assistant Administrator, Office of Water, signed the following Notice of Availability and Request for Comment on 12/23/2020, and EPA is submitting it for publication in the Federal Register (FR). While we have taken steps to ensure the accuracy of this Internet version,  it is not the official version of the Notice of Availability and Request for Comment. Please refer to the official version in a forthcoming FR publication, which will appear on the Government Printing Office’s FDsys website ( It will also appear on ( in Docket No. EPA- HQ-OW-2020-0456. Once the official version of this document is published in the FR, this version will be removed from the Internet and replaced with a link to the official version.

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