ALEXANDRIA, VIRGINIA – July 1, 2014. USACE IWR and ICIWaRM Director Bob Pietrowsky and Deputy Director Dr. Will Logan attended the 21st session of the Intergovernmental Council (IGC) of UNESCO's International Hydrological Programme (IHP) on June 18-20 in Paris, France. The IHP Intergovernmental Council is the main governing body of UNESCO's important freshwater program.