Standard&Poor's Ratings Services raised its rating to 'AA+' from 'AA', on Trinity River Authority, Texas' regional wastewater system revenue bonds outstanding. In addition, we assigned a 'AA+' rating and stable outlook to the series 2008 refunding regional wastewater system improvement revenue bonds. The upgrade reflects the member cities' improving general creditworthiness and financial stability, as well as their strong service area economies and the solid operations of the respective utility systems. The participant cities' water and sewer systems collectively exhibit: Margins that are able to generate sound coverage of all on-balance-sheet and off-balance-sheet obligations, including those to the authority; Strong liquidity; and Moderate retail service rates, coupled with a demonstrated willingness to adjust rates as necessary. Moderating these