You've got the same error in the text for the "Underground Channel" as the rules had (vs the tile text). It's 2 wounds not one. Discussed in a forum post somewhere around here.
Considering I used the rule book to make this, its not surprising that it would be the same. If you want to point me to an official FAQ/Errata, I'll update it.
I spent a lot of time on this reference and gave it to the community freely. Telling me it is 'not useful' because of 1 number on it supposedly being 'wrong', I find insulting.
And as I said, I'll be glad to update it when the company puts out something official (generally a published FAQ/Errata, not BGG forum posts). I may also be willing to dig in BGG forums as the result of a polite request, instead of rude ones.