Adhesive Residue
This may be a little involved, but you should be able to get some info by doing the following:
Call Crystal Geyser Water and find out the brand name of the adhesive and label material (manufacturers and part numbers). Also, ask them for the Material Safety Data Sheets (MSDS) for them. They are required to keep this by OSHA, and it is public record for their employees and basically anyone who asks. The MSDS should have info on the exact material or chemical that is causing the stain or residue. Then ask them how to remove the material.
If the water bottler doesn't have any useful information, contact the adhesive manufacturer and ask them how to remove the residue.
Last resort, send an e-mail or letter to the "Queen of Clean" (TV personality), though she is probably just going to tell you to put vinegar or salt on it.
Also, ask the Toyota dealer. Sometimes they have special cleaners that can remove odd stains.
Good luck...