EPA in the Pacific Islands
EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in the U.S. Pacific Territories of American Samoa, the Commonwealth of the Northern Mariana Islands (CNMI), and Guam; U.S. Minor Outlying Islands in the Pacific; and the Freely Associated States of the Federated States of Micronesia, the Republic of the Marshall Islands, and the Republic of Palau.
Alert
Super Typhoon Sinlaku Response
In response to Super Typhoon Sinlaku, EPA received a mission assignment from the Federal Emergency Management Agency (FEMA) on April 17, 2026, to ensure the safety of drinking water and to coordinate and assess needs for wastewater facilities in CNMI. EPA concluded its field operations on May 7, 2026.
EPA completed assessments of available drinking water systems on Saipan, Tinian, and Rota, and worked with local authorities to restore safe, reliable drinking water as quickly as possible. EPA provided scientific support to local agencies tasked with ensuring safe drinking water is available across Saipan; this work included sampling drinking water at restaurants, shelters, schools, drinking water purveyors, and temporary drinking water treatment locations.
Boil water notices remain in effect for Saipan and Tinian. Bottled water is available at shelters and community sites, and public filling stations are open in Saipan, Tinian, and Rota.
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Topics and Resources
Topics and resources for the U.S. Pacific Island Territories.
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Corrective Action at Johnston Atoll
Information about EPA's corrective action at Johnston Atoll, its environment, military history and hazardous waste legacy.
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Seeking Public Input
EPA is seeking input about which environmental and public health geospatial datasets – maps – would be most helpful to stakeholders, decision-makers, and communities in the Pacific Territories. Learn more and contribute to the effort to develop data tools for the Pacific Territories.
News, Events and Public Notices
Pacific Southwest Social Media
