DALLAS (Standard&Poor's) Jan. 22, 2015--Standard&Poor's Ratings Services said that it raised its rating on Atlanta's outstanding water and wastewater revenue bonds to 'AA-' from 'A+'. At the same time, we assigned our 'AA-' rating to the city's series 2015 water and wastewater revenue refunding bonds. The outlook is stable. "The higher rating reflects a number of positive credit factors," said Standard&Poor's credit analyst James Breeding, "specifically the recent and projected trend of strong coverage and liquidity, coupled with the ability to cash fund a large portion of the capital improvement plan for the next five years." "The rating reflects our assessment of recent strong financial performance, including high coverage, which city management projects will