Kumanichi reports that there is now a free bus service for volunteers who wish to clean houses and clear debris in the flood areas of Ashikita (and perhaps elsewhere - the article doesn't make that clear). The bus departs from the Sakuramachi Bus Terminal every Tuesday and Thursday from July 28th to September 15th (except August 13th) apparently at 7:00 AM, though again, that is not explicitly stated, so you might want to check. - William