"Cemetery vineyards in Hayward, San Pablo, Antioch [CA]provide sacramental wine"
from San Jose Mercury News:
... some of the cemetery grapes are showing promise... The diocese will produce 50 cases of the 2009 Hayward primitivo grapes under a second label. "We're about to introduce the Bishop's Vineyard, since the bishop in Oakland oversees the vineyards," ... The Bishop's Vineyard wine will be used at special church events.