...CENTENNIAL (S&P Global Ratings) April 10, 2018--S&P Global Ratings revised its outlook to positive from stable and affirmed its '##-' long-term rating and underlying rating (SPUR) on West Contra Costa Unified School District, Calif.'s general obligation (GO) bonds outstanding. At the same time, S&P Global Ratings assigned its '##-' long-term rating, with a positive outlook, to the district's: + 2018 GO refunding bonds, + 2018 series D GO bonds (2012 election), and + 2018 series E GO bonds (2010 election). The 2018 GO refunding bonds will be used to refund the district's election of 2002 series C GO bonds (capital appreciation bonds), 2009 GO refunding bonds, and election of 2010 series A GO bonds outstanding. Proceeds from the 2018 series D and series E GO bonds will finance the acquisition, construction, improvement, furnishing, and equipping of certain district facilities. "The outlook revision reflects our view of the district's sustained strengthening of available reserves, supported...