How do I submit a public comment on Drinking Water Contaminant Candidate List 6-Draft?

The public comment window for this decision closed on June 5, 2026. The record of what was at stake stays on this page.

When is the public comment deadline for Drinking Water Contaminant Candidate List 6-Draft?

The comment window closed on June 5, 2026.

Do public comments actually change federal decisions?

Yes, when they are substantive. Agencies are legally required to read and respond to substantive comments before finalizing a rule, and specific personal comments about real places and real uses carry far more weight than identical form letters. Courts have overturned rules when agencies ignored substantive comments.

Affects public lands

Oppose Drinking Water Contaminant Candidate List 6-Draft

Drinking Water Contaminant Candidate List 6-Draft

ENVIRONMENTAL PROTECTION AGENCYFederal Register 2026-06662 ↗

Clean water PFAS Public Health Drinking Water

The EPA is seeking public comment on its draft Sixth Contaminant Candidate List (CCL 6), which identifies 75 chemicals, 4 chemical groups, and 9 microbes that currently lack federal drinking water regulations but may need them in the future. The list includes notable groups like PFAS, microplastics, pharmaceuticals, and disinfection byproducts that are known or expected to show up in public water systems. This affects drinking water utilities, public health professionals, and communities across the country who rely on regulated public water systems.

In the agency’s own words

The U.S. Environmental Protection Agency (EPA) is publishing a draft list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations for public review and comment. These contaminants are known or anticipated to occur in public water systems and may require regulation under the Safe Drinking Water Act (SDWA) in the future. The draft list provided in this document is the sixth Contaminant Candidate List (CCL) published by the Agency since the SDWA amendments of 1996. The draft Sixth Contaminant Candidate List (CCL 6 or the list) includes 75 chemicals, 4…

Federal Register 2026-06662 ↗

The reporting behind this

From More Than Just Parks

US Forest Service to Clearcut One of the Last Great Groves in the TongassSep 4, 2026

It’s referred to as Unit 346 in the Twin Mountain II Timber Sale. On the ground, it’s some of the most spectacular old growth we’ve ever witnessed, and it’s marked for clearcutting.

We’re Headed to the TongassAug 22, 2026

To document and do our part to save America’s greatest old growth forest

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