The rating upgrade on Plano, Texas' bonds is based on the strengths of the city's water and sewer system ('AA' underlying rating {SPUR}), which include: The service area's rapid historical growth and economic diversity, Above-average wealth and income indicators, Stable operations with sufficient capacity for growth, and A solid financial position. The bonds are secured by a first lien on gross revenues of Plano's municipal drainage utility system. The rating continues to reflect the drainage utility's: Stable revenue stream provided by low drainage rates, Adequate coverage of annual debt service requirements, and Limited future capital needs. Plano ('AAA' GO rating) is a suburb north of Dallas with an estimated population of 233,200. The city continues to experience strong population and
