At a dose factor of 0.000018 mSv/kBq for tritiated water, you would get a 3 Sv dose from "only" 1/5000 of the water. Drinking (or inhaling) 50,000 gallons of t

At a dose factor of 0.000018 mSv/kBq for tritiated water, you would get a 3 Sv dose from "only" 1/5000 of the water. Drinking (or inhaling) 50,000 gallons of the (undiluted, so best case in terms of volume) water from storage tanks would probably get you with kidney failure somewhat before the tritium does.