September 3, 2008 > Adult School Classes Adult School Classes Submitted By Laura Zaro Fall classes for the New Haven Adult School in Union City begin September 8. Classes available include English as a Second Language, Citizenship, computer, career, art, health, fitness and many more. We also have a high school diploma program. Visit our web site at www.nhusd.k12.ca.us/adult or call 510-489-2185 for more information.