Standard&Poor's Ratings Services raised its long-term rating to 'AA-' from 'A+' on Houston County, Ala.'s general obligation warrants and Houston County Water Authority Inc., Ala.'s water revenue bonds. In addition, Standard&Poor's assigned its 'AA-' long-term rating to the authority's series 2013 water revenue refunding bonds. The upgrade reflects our view of the county's continued economic growth, coupled with its role as a regional economic center within the region. The raised rating also reflects the county's continued maintenance of a very strong financial position. The water revenue bonds are secured with revenues from water system operations and also by a funding agreement with Houston County. Per the agreement, the county's full faith and credit is irrevocably pledged