Talking about water, there's a fairly new bottled water on the market that is supposed to be balanced for electrolites etc. Reading the label its says...
To make GLACÉAU Smartwater, we evaporate spring water, condense the vapour and then add just the right amount of electrolytes before bottling.
So its basically Distilled water with added chemicals. Seems a bit pointless evaporating spring water which just removes all the natural minerals. They might just as well use Tap water like they did with another brand a few years ago.
As bumpkin said earlier, all the water in the world is old - a lot older than 2 billion years, actually. What comes out of our taps is indeed partly made up of dinosaur urine (and a lot of other kinds of urine) that has simply been recycled hundreds of millions of times by the planet.
I think the point being made by the scientists about the water in this report is that it has been down there, in the rock, unused for at least 2 billion years.