SAN FRANCISCO (Standard&Poor's) Aug. 27, 2001—Standard&Poor's today assigned its triple-'A' rating to Phoenix Industrial Development Authority, Ariz.'s $25 million single-family mortgage revenue bonds series 2001-1A and 2001-1B, issued for the Maricopa County Industrial Development Authority, Ariz. In addition, Standard&Poor's assigned its 'SP-1'-plus rating to the Phoenix Industrial Development Authority's $46.88 million single-family mortgage revenue bonds series 2001-1C and 2001-1D, also issued for the Maricopa County Industrial Development Authority. All four bond series are scheduled to sell on Aug. 28, 2001. The ratings reflect: -- The extremely high credit quality of the collateral backing the bonds, -- Cash flow sufficiency, and -- High quality investments. Series 2001-1A and 2001-1B are long-term issues secured by Ginnie