CASTRO VALLEY -- Candidate forums for the Castro Valley school board and a BART District 5 seat will be streamed live on the Internet on Wednesday.

In the school board race, incumbents John Barbieri, Jo Loss and Kunio Okui -- who have served on the board for more than a decade each -- are being challenged by Charmaine Banther and Mary Pippitt.

The forum is sponsored by the League of Women Voters Eden Area and Castro Valley TV, which will live-stream the forum at http://castrovalleytv.com.

Retired mechanic John Mayer is running against incumbent John McPartland of Castro Valley for the BART District 5 spot. The district includes part of Castro Valley and Hayward, Dublin, Pleasanton, Livermore and Sunol.

The forums are from 7 to 9 p.m. at the Castro Valley Library, 3600 Norbridge Ave.