The EPA Administrator, Scott Pruitt, along with Mr. Douglas Lamont, senior official performing the duties of the Assistant Secretary of the Army for Civil Works, signed the following proposed rule on 06/27/2017, 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 of the rule, it is not the official version of the rule for purposes of public comment. Please refer to the official version in a forthcoming FR publication, which will appear on the Government Printing Office's FDsys website and on Regulations.gov in Docket No. EPA-HQ-OW-2017-0203. 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 Adobe Reader to view files on this page. See EPA’s About PDF page to learn more.