Any rad chemtech knows " dilution is the solution" to get it down to very low levels per gallon.. .
Look at a map of nuclear power plants around the world. Most of them are near a large body of water and I bet they have been dumping rad waste into it forever.
Its the dirty little secret nuke power companys don't want you to know... Btdt.
THE TRUTH WON'T SET YOU FREE, IT WOULD SCARE THE CRAP OUT OF YOU.
The reason they are located near water is for cooling water. Same would go for a fossil fuel power plant. This is not the cooling water in the reactor, that requires a lot of purification and is recycled. Not just for reducing scaling(as is a fossil fueled plant) but also reduce neutron activation products and reactor poisons. The steam you see from cooling towers is just plain water vapor.