PORTLAND, Ore. -- The Chief Information Officer at Portland Public Schools has resigned, adding more departures to a district already plagued by scandal.

Josh Klein, who heads the district's Information Technology department, submitted his resignation May 1, PPS spokesman Dave Northfield confirmed. Klein's last day will be May 20.

A replacement has not yet been named.

Klein has been hired as the Assistant Superintendent for the Office of Accountability, Research and Information Services at the Oregon Department of Education. Before Klein worked at PPS, he was the Chief Information Officer at ODE.

Last week, the district was rocked by the announcement that the sole finalist for superintendent, Donyall Dickey, turned down the job.

Human Resources Director Sean Murray and Assistant Superintendent Harriet Adair also recently submitted their resignations.

Last year, longtime superintendent Carole Smith resigned amid revelations that every school in the district had high lead levels in at least one water source - many had far more. Documents showed the district knew about the lead problems but didn't inform parents or students.

The PPS school board now is pushing for a $790 million bond to rebuild four schools and upgrade health and safety standards district-wide. Officials hope the administrative shake-ups won't impact the vote.