Water in RR Tyre compartment

Looking for anyone whose had this issue and resolved it. I own a 2002 RR P38. We had several days of hard, drenching rain. I noticed some mold, (from condensation) on the carpet near the opening to the spare tire compartment several days later. I opened the tire compartment door and found, to my surprise nearly 2.5 gal of water. The spare tire was nearly submerged. It seems to be entering from the lower left corner inside the tire compartment its self. But I'm not sure. No water stains inside the car anywhere, nor from any of the windows. The car rear top and bottom hatch rubber seal is in tact and seems fine.

Anyone else had this issue? How did you resolve it?
Thx, Pat

Hi, welcome to the LZ. I think you will get a better response on the RR section: https://www.landyzone.co.uk/forum/range-rover.10/
Also, as a newbie it would be very acceptable if you went on the introduction section and told us a little about yourself and the vehicle and maybe put up a pic or two - we just love pics.
You will find the introduction section here:
https://www.landyzone.co.uk/forum/range-rover.10/
I do not think water in the trunk is entirely unknown.

Subject of a LR Technical Bulletin: https://www.landyzone.co.uk/land-rover/p38-spare-tire-well-collects-water.17422/
Some suggestion here that the sunroof drains can be a cause: https://www.aulro.com/afvb/p38a-range-rover/110985-p38-wheel-well-water-leak-bad.html