Hi:
This may be a long shot contacting you for additional information, but I thought I'd give it a try.
I'm experiencing the same drivers side leak that was discussed in the post by Gator a couple of years ago <https://www.chevyhhr.net/forums/problems-service-repairs-42/drivers-side-leak-again-36429/>
Not sure why it's leaking now since my 2006 HHR has been outside most of its life in Michigan weather! But I too sucked a couple of gallons of water out of the floor board and continue to work on it to dry it out...not easy with 60-70% humidity :)
The photos with Gator's post are so small it's very hard to figure out on what and precisely in which area I'm supposed to be working.
Any chance you can shed some light as to how to properly remove the kick panel – I'd rather not damage anything in the process.
Thanks in advance for your assistance,
Denise