GOVERNMENT RECORD
EPA draft risk assessment for PFOA and PFOS in sewage sludge
About this source
EPA’s draft assessment describes modeled exposure scenarios for two PFAS compounds.
- Source type
- Government record
- Source classification
- Primary source
- Source date
Relevant excerpt / notes
Producer: United States Environmental Protection Agency Source class: Primary record or first-party statement. What it supports: EPA’s draft assessment describes modeled exposure scenarios for two PFAS compounds. Limitations: A modeled risk is not a measured Yuma exposure. Review scenario assumptions, pathways and draft status before applying a result to a real property. Publication date: not established in this review. Reviewed September 19, 2026.
Publisher / issuing organization 1
Related claims 2
- Needs ContextIs 1 ppb a universal safe-or-unsafe cutoff for PFAS in biosolids?
The modeled value is not a universal boundary for every location or exposure.
- VerifiedPFAS has been found in municipal biosolids and amended soils.
PFAS occurrence is documented in studied materials.
Related articles 1
- PFAS and Biosolids: What We Know About Yuma
PFAS occurrence is documented in biosolids research. Local concentration, exposure and responsibility require a separate chain of evidence.
Organizations 1
- United States Environmental Protection Agency
EPA publishes federal biosolids information, PFAS risk assessments, draft guidance and sampling resources. These have different legal and evidentiary functions.
Related topics 1
- Yuma Biosolids / AgTech
A source-first guide to Yuma’s biosolids debate: the lease decision, City contract, fly research, PFAS questions and the records still needed.