Pretty rough bug. Let me know if you have any contacts there!
Without going into detail, when you say “pretty rough” are you talking about exploitability, triviality, or impact?
Given we’re talking about water here (i.e. designated Critical Infrastructure in most countries) any safety criticality caused by what you’re talking about should probably be directed to the local CERT, along with a nudge to some of the folks who are wired into this type of thing in the group.
Also, which country are you referring to? I’m assuming the USA, but it’s good to confirm.
USA and I dmd you on slack