Standard & Poor's Ratings Services said it has raised its rating on Miami-Dade County, Fla.'s 1998, 2001, and 2005 solid waste system revenue bonds to A-plus from A with a stable outlook.
"The upgrade reflecting the system's maintenance of good annual debt service coverage and liquidity, even as the county continues to address its capital needs for its waste management department," said Standard & Poor's credit analyst Corey Friedman.









