Why not? Get yourself an olf geiger-counter for under 100 bucks, which tells you in Bq how many nuclei are decaying per second. With this you can calculate how much tritium is within the sample you're testing. If you can't do this for lack of knowledge, you can't assess how dangerous the water is, which means, that you have no idea about what can be done with it. In this case let me tell you, that radiation is quite harmless when compared to what people think. There really is no good reason to not simply pour this stuff into the ocean, or just leaving it as is in a few swimming pools. Most so called nuclear waste can be handled quite easily, and is only a problem because politicians are making it into one. Stuff is either highly radioactive for a short period of time, and at some point becomes as radioactive as a rock, or is not highly radioactive, and more of a concern due to its chemical toxicity. However, chemical industries are using huge quantities of toxic stuff without many troubles, and sometimes release huge amounts of poisonous stuff into the environment without people getting hysterical about it. Regarding the markets: Really, who cares. If people don't want to eat perfectly fine fish from some region, why should I care.