Hump on inside of hull in battery compartment

In post #3 of this thread, https://forum.moomba.com/showthread.php?t=8354, brain installed the eznets on this hump. I just wanted to confirm that you can drill and screw into this without damaging anything? This doesn't go into an area that involves water does it? Thanks.

It is there to allow airflow from the intake down into the hull and back to the engine area. I did the same as brain and installed the eznet on there. No problem.