The Arc of the East Bay Share: Non ProfitNon Profit The Arc of the East Bay Visit Website 34135 Seventh Street Union City, CA 94587 (510) 477-0896 (510) 477-0861 (fax) About Map About Serves children and adults with intellectural and developmental disabilities by empowering them to fully utilize their abilities and community resources. What's Nearby? Distance: 5 10 15 20 25 50 mi.