DALLAS (Standard&Poor's) Nov. 5, 2010--Standard&Poor's Ratings Services has assigned its 'AA' rating, with a stable outlook, to San Antonio, Texas' series 2010A and 2010B water system revenue bonds. At the same time, we have assigned our 'AA-' rating to San Antonio's series 2010A water system junior-lien revenue and refunding bonds, secured by a junior-lien pledge of net revenues of the water system. In addition, Standard&Poor's has affirmed its ratings on the system's senior- and junior-lien bonds outstanding. The junior-lien bonds are expected to be sold to the Texas Water Development Board. "The ratings reflect our assessment of the broad, diversified, and growing service area that encompasses most of the city of San Antonio ('AAA'