ELBA DE LA ROCHA ZAVALZA » Agency Wide Contact Information Go back to directory. Add to Address Book. ELBA DE LA ROCHA ZAVALZA ASSISTANT TEACHER – 7 HES Yuma AZ 85364 work Work Phone: 928-783-4706work Work Fax: 928-783-0536workfax Work Email: elbad@wacog.comINTERNET Categories: Uncategorized Updated 5 years ago.