Standard&Poor's Ratings Services has assigned its 'AA' rating to the City of Colorado Springs, Colo.'s utilities system refunding revenue bonds series 2015A. At the same time, Standard&Poor's affirmed its 'AA', 'AA/A-1+', and 'AA/A-1' ratings on the system's parity debt outstanding. The outlook is stable. A pledge of net revenues of Colorado Springs Utilities' (CSU) electric, gas, water, wastewater, and streetlight systems secures the bonds. Bond proceeds will refund existing debt. Total debt outstanding amounts to $2.4 billion. The 'AA' rating reflects what we consider to be the following credit strengths: Financial metrics that are highly supportive of the current rating, including very strong coverage of fixed costs and substantial liquidity; Competitive rates across the combined utility