Forum:Waters of Life quest Issue

Im playing through the main quest with the Broken Steel DLC and when i get to the part of the waters of life quest that requires you to clear out the Jefferson Memorial, I clear it and yet when you talk to Dad again, he asks if its safe and the only dialogue options are to say it isnt safe, and that you need more time. I have no idea what caused this, and have gone back to earlier saves (as in before Tranquility Lane) to try to replay it, and yet it does the exact same thing. I am almost 100% sure that i killed everything inside, unless there is some hidden door that i missed, and no enemies show on the radar. I cleared outside the place when i came over from the tranquility lane quest.

I guess a side note is that i used god mode for the second run through as i didnt feel like doing it all again, but i have never had problems with it causing quests to not be able to be completed.

Edit: Also turned collisions off (tcl in console) and searched every room in the place including the inaccessible mainframe. there is no one there.