Please download and print out this registration form, fill it out, and bring it into the GSWA’s administrative offices located at 546 North Marine Corps Drive in Tumon (Phone: 646 3111; opened weekdays during regular hours from 8 am-5 pm) where a customer service representative will sign you up for service. Please make sure to also provide a valid identification (driver’s license, passport, or Government of Guam issued identification card) and proof of residency (rental lease, title or deed, power/water bills).