EPA’s Draft Sewage Sludge Risk Assessment for PFOA and PFOS – Comment by Aug 15

May 16, 2025 | Comment and Consultation

EPA’s Draft Sewage Sludge Risk Assessment for Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonic Acid (PFOS) reflects the agency’s latest scientific understanding of the potential risks to human health and the environment posed by the presence of PFOA and PFOS in sewage sludge that is land applied as a soil conditioner or fertilizer (on agricultural, forested, and other lands), surface disposed (e.g., placed in a sewage sludge-only landfill called a monofill), or incinerated. The comment period has been extended to August 15.