 In 1995 the Agency moved from the Harmon Industrial Park to Tiyan Barrigada.The building was available after the Department of Defense returned properties that were part of the former Naval Air Station (NAS) Guam to the Government of Guam.The public law creating Guam EPA states, 
""It is hereby declared to be the public policy of this Territory of Guam that a high quality environment be maintained at all times to guarantee an enjoyable life for all people at present and in the future, and that environmental degreadtion of the quality of land, water and air by any pollutants, including all physical, chemical and biological agents, should not be allowed.