[photochemsyn]

The EPA's response to the BP Deepwater Horizon blowout - in particular allowing widespread use of Corexit - was pretty scandalous:

https://www.typeinvestigations.org/investigation/2015/04/27/...

I think they also dropped the ball on lead in drinking water supplies across the USA. It's another 'regulatory capture' situation, most likely.

[acdha]

I’m not saying the EPA is perfect but simply asking whether we have reason to believe that this case was due to measurement choices, or if that was simply made up for the sake of argument.