NY -- Standard&Poor's CreditWire 7/29/97 -- Standard&Poor's today has assigned its single-'A'-plus rating to California Health Facilities Financing Authority's (CHFFA) $39.39 million revenue bonds series 1997A due Aug. 15, 2027, issued for Sutter Health Obligated Group (formerly Sutter/CHS Health System). Also, Standard&Poor's has assigned its single-'A'-plus rating to Modesto, Calif.'s $30 million revenue bonds series 1997B due June 1, 2027, issued for Sutter Health (Memorial Hospital Association). The outstanding single-'A'-plus rating on debt issued by CHFFA and by California Statewide Community Development Authority for the obligated group has been affirmed. The rating is based on Sutter Health's strong market position, very good balance sheet, and good financial performance. Bond insurance is expected on this