NEW YORK (Standard&Poor's) Oct. 14, 2009--Standard&Poor's Ratings Services assigned its 'AA+' long-term rating to Riverton, Utah's $250 million hospital revenue bonds series 2009, issued for IHC Health Services Inc., the obligated group of Intermountain Health Care (Intermountain). We also affirmed our 'AA+' unenhanced ratings, 'AA+' underlying ratings (SPUR), and 'AA+/A-1+' dual ratings on various issuers' revenue bonds, issued for Intermountain, which is the state's largest integrated delivery system. The outlook is stable. "The 'AA+' ratings reflect Intermountain's strong business position in the economically robust state of Utah, consistently strong financial performance, considerable financial flexibility especially in its rates, and a balance sheet that is sound but not stellar for the rating," said Standard&Poor's credit