Heya! We've looked this over and what we can say is that this plan isn't feasible the way it is now as the ocean is much too large for Squid Girl to clean on her own. What we can do though is allow you to search for the source of the Trubbish and then attempt to block them off from the ocean. This will require the assistance of multiple people - Squid Girl herself will not be able to accomplish it alone. Squid Girl is welcome to investigate on her own at first, and she may find the source, but she won't be able to do anything about it besides make the Trubbish unhappy.

What we'll need you to do right now is propose a more concrete plan for Trubbish hunting. If you'd like her to go solo at first, you can ICly start the log, call for an SOS, and then resume it with the others. OOCly, it's best that you make arrangements in advance to find characters who will help Squid Girl.

The end result of this will simply be that Trubbish will become Commons in a different area, by the way.