SAN FRANCISCO (Standard&Poor's) May 14, 2015--Standard&Poor's Ratings Services assigned its 'AAA' long-term rating to the East Bay Municipal Utility District (EBMUD), Calif.'s $76.5 million series 2015B (Green Bonds) and $114.1 million series 2015C water system revenue bonds. At the same time, Standard&Poor's affirmed its 'AAA' long-term rating and underlying rating (SPUR) on the district's previously issued water system revenue bonds. (The short-term ratings on the series 2008A and 2008B variable-rate demand bonds -- VRDBs -- are based on the short-term ratings on the standby bond purchase agreement -- SBPA -- providers.). Finally, Standard&Poor's affirmed its 'A-1+' short-term rating on the district's extendable commercial paper (ECP) notes (water series). The outlook, where applicable,