SAN FRANCISCO (Standard&Poor's) May 16, 2014--Standard&Poor's Ratings Services assigned its 'AAA' long-term rating to the East Bay Municipal Utility District (EBMUD), Calif.'s series 2014A, 2014B, and 2014C water system revenue bonds. At the same time, Standard&Poor's affirmed its 'AAA' long-term and underlying rating (SPUR) on the district's outstanding water system revenue bonds (the short-term ratings on the series 2008A variable rate demand bonds are based on the short-term ratings of the standby bond purchase agreement providers). Finally, Standard&Poor's affirmed its 'A-1+' short-term rating on the district's extendible commercial paper (ECP) notes (water series). The outlook, where applicable, is stable. "The long-term ratings and SPURs continue to reflect our view of the district's