…The assessment found that PFNA interferes with human development by causing lower birth weights and, based on animal evidence, likely causes damage to the liver and to male reproductive systems, including reductions in testosterone levels, sperm production and the size of reproductive organs…

The EPA told ProPublica the report would be published when it was finalized, though the press office did not answer questions about what still needed to be done or when that would likely happen.

But the report’s final version was “completed and ready to post” in mid-April, according to an internal document reviewed by ProPublica. And two scientists familiar with the assessment confirmed the report has been finalized and ready for publication since April…

A draft version of the assessment was made public last year and drew objections from an industry trade group. The final version, which retained the calculations published in the draft report, was completed shortly before the EPA announced its intention in May to rescind and reconsider limits on the amount of PFNA and several other forever chemicals allowed in drinking water. The limits had been set last year by President Joe Biden’s administration.

Darya Minovi, a senior analyst at the Union of Concerned Scientists, pointed to that pending change as a possible motivation for not publishing the PFNA assessment. “If you’re trying to roll back drinking water standards, you probably don’t want to release information that makes the case for why those standards are necessary,” said Minovi…

…“This is the suppression of information,” said Allen, who co-founded the National PFAS Contamination Coalition. “We have the science, and it shouldn’t be obstructed.”…