SAN FRANCISCO (S&P Global Ratings) May 25, 2017--S&P Global Ratings assigned its 'AAA' long-term rating to East Bay Municipal Utility District, Calif.'s series 2017A wastewater system revenue/refunding bonds. At the same time, we affirmed our 'AAA' long-term rating and underlying rating (SPUR) on the district's existing wastewater system revenue bonds and our 'A-1+' short-term rating on the district's extendable commercial paper (ECP) notes (wastewater series). The outlook, where applicable, is stable. "The ratings reflect, in our opinion, the combination of an extremely strong enterprise risk profile and an extremely strong financial risk profile," said S&P Global Ratings credit analyst Tim Tung. The enterprise risk profile reflects our view of the wastewater system's: Service area participation in the broad and diverse