NEW YORK (Standard&Poor's CreditWire) Aug. 16, 2000-- Standard&Poor's today affirmed its single-'A'-minus rating on New Jersey Health Care Facilities Financing Authority's $17.03 million health care revenue, series 1993A, issued for Union Hospital&Mega Care. Standard&Poor's also affirmed its single-'A'-minus underlying ratings on the authority's $458.49 million revenue and refunding bonds series 1998B, and the authority's $12.08 million refunding bonds series 1998C, all issued for St. Barnabas Health Care System. The outlook is stable. The ratings reflect: -- The system's position as the largest provider in New Jersey with good geographic and programmatic dispersion, including 10 acute-care hospitals and a range of specialty hospitals, long-term care providers, and ambulatory facilities; -- Weak, but improving