MARTINEZ -- The Contra Costa Community College District unanimously appointed Matthew Rinn to represent most of the communities of Concord, Martinez, Pleasant Hill, and the town of Pacheco, known as Ward III.

Trustees made the provisional appointment at a special meeting Tuesday. Rinn will replace Board President Sheila Grilli, who died in August. Rinn was expected to take office Wednesday during the board's regular 6 p.m. meeting.

The provisional appointment becomes effective Nov. 7, unless a petition with a valid number of signatures opposing the appointment is filed within 30 days. Rinn will serve until the next regularly scheduled board election in November, 2014.

More information about the petition process is available by visiting www.4cd.edu.