Well, I've dipped my toe into this, probably at 10%. Still no mention of tons of grout injected into the deep rock ecosystem of bacteria. :)
I've discovered that Site A is pretty well their only option, with the other sites thrown in to look good. They have to present 'alternatives', and, of course, they just present worse alternatives! Most interesting from a seismic point of view is that they are infilling the bay to give them some more room.
Also interesting is the fact they are boring twin tunnels for both the intake and discharge tunnels. Considering that we had to dog-leg the Bruce B intake around a giant cavern, these pairs of tunnels present an added complexity.
This shows their 'alternatives'. I continue to be fascinated.