Anyone got a Wash Away Quest Guide??

I really need help here, specifically about what are the level ranges of the pokes I'm about to battle and where the npc's are located. If you have a guide for this I would really appreciate it. =)

 

Hey,
there is already a guide on forums about quests in Gen 3. "Wash Away" guide can be found here: http://forum.pokefind.co/index.php?threads/generation-3-quest-guide.10037/
Good luck

 

Thanks!