Research brief / Version 1.0
PFAS evidence: ask what happened after removal
Read the scope of EPA’s 2026 guidance and build better questions for emerging treatment claims.
What the 2026 fact sheet establishes
EPA’s April 2026 fact sheet describes updated interim guidance on PFAS destruction and disposal, drawing on information reviewed through September 2025. It identifies a new technology-evaluation framework and continuing data gaps. The guidance does not establish destruction or disposal requirements.
That scope matters: this is not a list of universally approved technologies or a finding that any advertised removal percentage proves destruction. This brief is based on the fact sheet, not an independent technical assessment of the full report.
Use a claim-to-evidence ledger
Our editorial evaluation framework separates the stated claim, the measurements supporting it and the unmeasured pathways. Ask a technology provider which analytes were measured, by which methods, in which input and output streams. Record detection or reporting limits and the study conditions.
If a claim says “removal,” ask where the captured material goes. If it says “destruction,” ask what evidence supports that stronger conclusion and how transformation products and other output streams were evaluated. Do not replace an expert assessment with a single headline percentage.
- Was the result obtained in a laboratory, pilot or operating facility?
- Which outputs and residuals were included in the evaluation?
- What data are unavailable or below the method’s reporting capability?
- Which site-specific engineering and regulatory questions remain open?
Requirement → evidence → decision boundary
An editorial checklist for your review—not a table of product specifications.
| Requirement | Evidence to request | What it does not establish |
|---|---|---|
| Claim definition | Exact endpoint, analytes, methods and system boundary | Removal and destruction are different claims requiring different evidence. |
| Evidence completeness | Input/output data, residual pathways and reported uncertainty | An unmeasured stream cannot be treated as a demonstrated absence. |
| Site applicability | Specialist review of conditions and applicable requirements | Interim guidance is not a site permit or product endorsement. |
Make the open questions useful
Record requirements, evidence gaps and approval owners in a downloadable purchasing brief.
Open the requirements worksheet →Revision record
1.0 · September 10, 2026 — Initial source-based edition. No original testing or product qualification is claimed.
A requirements and evidence library, not a dosing recipe or a compliance determination. Site-specific treatment design and applicable requirements belong with qualified personnel.
Suggest a correction