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 Denton Creek regional wastewater treatment system, and affirmed its 'AA' rating, with a stable outlook, on the authority's Denton Creek regional wastewater treatment system's parity debt. The ratings reflect our assessment of the general creditworthiness of the retail utility systems that participate in the TRA's Denton Creek wastewater collection and treatment system. Contracts between the participant retail systems -- primarily municipally owned water and sewer systems mostly in Tarrant County -- and the authority require unconditional monthly payments to the TRA. Payments, considered operating expenses of the participants, reflect the participants' sewer flows as a
