Protection of groundwater is no longer a “must.” Rather, companies must give “consideration” to “avoiding or minimizing” radioactive contamination. Requirements for monitoring and documentation are also softened.
Experimental reactors and a pinky promise they won’t irradiating your drinking water.
I notice that they took the security requirements, and decided that it should be left up to the companies. That’s a recipe for creating a situation where fairly small groups of people are able to steal fissile material and try their hand at making nuclear weapons.