DES MOINES, Iowa, Sept. 4 -- The Iowa Department of Natural Resources issued the following news release: * * * Water Summary Update: Iowa remains drought-free during August * DES MOINES - Despite a drier-than-normal August, Iowa remains drought-free, according to the latest Water Summary Update. After a wetter-than-normal July improved drought and dry conditions across the state, August saw a return of drier weather. After three consecutive weeks with no drought or abnormally dry condition  more