Standard&Poor's Ratings Services assigned its 'AA-' standard long-term rating, and stable outlook, to San Antonio, Texas' series 2007 water system revenue refunding bonds and its standard long-term 'A+' rating, and stable outlook, to the system's series 2007 and 2007A junior-lien water system revenue and refunding bonds. Standard&Poor's also affirmed its 'AA-' standard long-term rating and Standard&Poor's underlying rating (SPUR), with a stable outlook, and 'A+' standard long-term rating and SPUR, with a stable outlook, on the system's preexisting bonds and its 'A-1+' short-term rating on the system's CP. The ratings reflect the system's: Broad, diversified, and growing service area; Sound financial performance for the past several years; Adequate system operations with a very large,