Curses and hexes are not prohibited by the law. If you want to damn a river, damn it. You don't even need to buy the land first.
to those who say "it's better to light one candle than to curse the darkness" I say "Damn the darkness!"
Even if someone is lucky enough to own land with a river running through it I'm pretty glad that somebody will "get in a man's way" if that man decides to do something like dump heavy metals into the river with abandon or dam it up without any consideration for those further downstream. I'm also glad that the somebody doing the job is ultimately working for the public and that voters who can decide to increase/decrease the amount of oversight as needed. The majority of the US population feels that the government isn't doing enough to protect the environment.
In May last year, SCOTUS significantly narrowed the definition of “waters of the United States” - https://en.m.wikipedia.org/wiki/Sackett_v._Environmental_Pro... - so some of these cases which would have required a federal permit (EPA or Army Corps of Engineers) may no longer require one.
Whether a state/county/municipal permit is required is a completely separate question - it is a matter of state and local law, which varies from state to state and locality to locality
However, that case did not narrow the definition of the phrase “waters of the United States” at all. No, it merely prevented the EPA from widening it over time. Keep in mind that the Sackett’s property does not actually contain a wetland or navigable waterway; it just has a ditch that occasionally channels rainwater away from their lawn. This returns us to the definition that the EPA decided on in the 1970s and 1980s.
SpaceX had requested a wetland reclamation permit from USACE for expansion of their launch site in Texas; in 2022 (a year before SCOTUS decided this case) they withdrew the application [0], exactly why is unclear, but it seems they concluded that bureaucratic process was unlikely to produce the result they wanted. Possibly, under this decision, the wetland (tidal flats actually) they wanted to reclaim is no longer “waters of the United States”, in which case they might be able to go ahead without the permit. If that’s the case, then in practice the definition really has been narrowed
[0] https://www.tpr.org/environment/2022-04-07/army-corps-of-eng...