inight09_floridaThe line for a food truck at Off the Grid Photo: Liz Hafalia/The Chronicle 2012 Off the Grid is opening still another weekly food truck market in the East Bay, this one in Concord’s Todos Santos Plaza. Related Links Off the Grid unveils 2015 lineups for Fort Mason and Presidio Picnic Launching August 17, the new gathering will occur every Monday from 5 to 9 p.m. It’ll feature a rotating lineup of eight food trucks—Bacon Mania, Burnt Ends BBQ, El Porteño, for example—in addition to live music, on Grant Street between Salvio Street and Willows Pass Road. This marks Off the Grid’s 45th market and 37th location in the Bay