Standard&Poor's Ratings Services assigned its 'AA-' rating and stable outlook to Trinity River Authority (TRA), Texas' series 2013 revenue bonds, issued for the Ten Mile Creek system, a regional wastewater treatment system, and affirmed its 'AA-' rating, with a stable outlook, on the authority's Ten Mile Creek system's parity debt. The rating reflects our assessment of the credit strength of the water and sewer operations of the system's five participating members: Cedar Hill, DeSoto, Lancaster, Duncanville, and Ferris. The rating also reflects our opinion of the five participants' water and sewer systems': Essentiality of wastewater treatment services provided by the TRA, Stable customer bases with good income, Strong debt service coverage (DSC) on any revenue bond debt, and
