Hi Yal, I completed the game 2 days ago with 46 lore (the last one being on the table with the small crystal), and will root through the earlier areas one of these days for the remaining 4.
Will keep checking the walls in the Thermal Plant and the Reactor building (assuming I remember where I last saw that signpost that said 'Reactor').
Ah, now I understand what you meant by going up the Water Tower once the explosion starts; I'll use one of my old saves to make my way up after triggering the explosion and see if I can save Voice :D