Draft Sewage Sludge Risk Assessment for Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonic Acid (PFOS); Extension of Comment Period

Environmental Protection Agency (EPA).

Notice of availability; extension of comment period.

This document extends the comment period for the notice published by the Environmental Protection Agency in the Federal Register on January 15, 2025.

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The comment period for the notice published in the Federal Register on January 15, 2025 (90 FR 3859), which was extended on February 21, 2025 (90 FR 10078), is further extended in response to stakeholder requests for more time. The EPA is extending the comment period, and the comments must be received on or before August 14, 2025.

You may send comments, identified by Docket ID No. EPA-HQ-OW-2024-0504, by any of the following methods:

• Federal eRulemaking Portal: https://www.regulations.gov/​ (our preferred method). Follow the online instructions for submitting comments.
• Mail: U.S. Environmental Protection Agency, EPA Docket Center, Office of Water Docket, Mail Code 28221T, 1200 Pennsylvania Avenue NW, Washington, DC 20460.
• Hand Delivery or Courier: EPA Docket Center, WJC West Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004. The Docket Center's hours of operations are 8:30 a.m.-4:30 p.m., Monday-Friday (except Federal Holidays).

Instructions: All submissions received must include the Docket ID No. for this rulemaking. Comments received may be posted without change to https://www.regulations.gov/​, including any personal information provided.