Osage R-II School Districtoffice of the Osage County R-II School District. County R-II School District. The School Board had engaged Mueller, Walla & Albertson, P.C. The district sent letters to eight approved auditors in June 2002 … Visit Document CHELAN COUNTY BOARD OF COMMISSIONERS JULY 14, 15, 2003 …Erlandsen & Associates for $5625.00 would assist […]