Chenowith Elementary School principal Monica Darnall has resigned.  According to North Wasco County School District 21 officials, Darnall had notified parents and staff at the school she would be resigning at the end of the year, but circumstances changed, and due to personal reasons she is returning to her home in Utah.  D-21 officials say Darnall will provide the district with consultation services regarding specialized programs, including dual language instruction, for the next five months.  Current The Dalles High School vice-principal Phil Williams will step in as principal at Chenowith for the rest of the school year effective immediately.  The district says Williams has over a decade of administrative experience at the elementary and secondary levels.