This project is quickly becoming a series on diy.SE. For more background, read the previous question.
I'm trying to repair my water damaged hardwood floor. I've started removing the planks (which I will now begin calling "strips" because they are so thin, only 1/8" thick) individually using the hammer and chisel approach recommended in the answers to the first question.
The new information I have for this question is as follows.
The damage appears to go beyond and beneath the first layer of wood. (The planks are only about 1/8"). Should I just keep digging out strips going deeper and deeper into the floor until I get all the damaged ones out? I am concerned about how deep the water damage appears to go. It might go all the way to the bottom of the floor into crawl space. Should I just keep digging out planks/strips? Or should I stop at some point and just patch over it. Patching over the damage just seems wrong somehow. But if it goes all the way thru, it seems like the complexity of the repair might grow exponentially.
What new advice can you give?Fig. 1. The work area and the tools I'm currently using. Hammer, chisel, safety glasses.