Guam EPA's offices are located in Tiyan, the former Naval Air Station. The Administration Building at 17-3304 Mariner Avenue houses the Administrator, Offices of the Administrator, Administrative Services Division, and the Environmental Planning and Review Division. The Operations Building at 15-6101 Mariner Avenue houses the Deputy Administrator, the Environmental Monitoring and Analytical Services Division, the Water Programs Division, and the Air & Land Programs Division.

The map below shows the general location of Guam EPA's offices. If you have further questions, please call 475-1658/9.