Check the map. There's an operational industrial scale natural gas power plant next door to xAI facility. And it was there for what, a decade already? Before it, there was a coal power plant there too.
Basically, it looks like the whole "xAI poisoning black neighborhoods" thing is the usual FUD by the usual agenda pushers.
That plant is subject to regulation and the xAI turbines evade regulations by claiming they are "portable".
I just looked, and you're right. It's in an industrial area several km from homes, and near existing NG facilities, including one where they flare gas.
https://www.facebook.com/abacustrategic/posts/pfbid02rrUwoWM...
https://maps.app.goo.gl/fYwcSi8vfPBnsYeK7
I don't doubt that it is a source of pollution, but I agree that this is overblown in the same was as the claims that datacentres are using up all the fresh water.