About EPA | US EPA

Nonpoint Source Success Stories: Northern Mariana Islands

Stories about primarily nonpoint source-impaired waterbodies in Northern Mariana Islands where restoration efforts have led to documented water quality improvements.

Deepwater Horizon Restore Council 10-Year Commemorative Report

10-Year Commemorative Report from the Gulf Coast Ecosystem Restoration Council about the Deepwater Horizon Oil Spill

Superfund and Technology Liaison Program

The Superfund and Technology Liaison (STL) Program was established to facilitate regional access to ORD laboratories, provide technical support, and assist with the integration of science and technology into decision-making for hazardous waste programs.

Collaboration with the United Kingdom on Air Quality Research

To initiate research collaboration among the United States Environmental Protection Agency (EPA), the Unitd Kingdom's (UK) Department for Environment, Food and Rural Affairs (Defra), and the Environment Agency for England and Wales (EA) on exposure science

September—October 2023 Newsletter

Check out our newsletter for stories on EPA’s work responding to the wildfires in Lāhainā, Maui, the Community, Equity & Resiliency Initiative, and progress on defueling at the Red Hill Bulk Fuel Storage Facility in Hawaii.

November—December 2023 Newsletter

EPA Pacific Southwest Region 9 November—December 2023 Newsletter: Investments in Tribes & Infrastructure, Environmental Justice, Progress on Maui and More,

EPA Pacific Southwest (Region 9) RTOC Strategic Plan

The Regional Tribal Operations Committee (RTOC) has developed this Strategic Plan to address the issues the RTOC has identified and the activities the RTOC intends to carry out between October 1, 2015 and September 30, 2017.

EPA Pacific Southwest (Region 9) RTOC Guidance Materials

The Region 9 Tribal Operations Committee (RTOC) is a working committee composed of Region 9 EPA personnel and Region 9 tribal representatives. Documents on this page provide guidance for tribal representatives.

EPA Pacific Southwest PFAS Tribal Drinking Water Sampling Project

The PFAS Tribal Drinking Water Sampling Project is a voluntary sampling effort that is offered to all public water systems (PWS) on Tribal lands in EPA’s Pacific Southwest Region (Region 9).

Indian Environmental General Assistance Program (GAP) Funding

EPA Region 9 invites Indian Environmental General Assistance Program (GAP) grant proposals from federally recognized Tribal governments and eligible inter-Tribal consortia for Fiscal Year 2026-2027 (FY27) workplan program development activities.

EPA Pacific Southwest (Region 9) Press Contacts

Press Officers in EPA's Pacific Southwest Region facilitate media requests for reporters in Arizona, California, Hawaii, Nevada, and Pacific Southwest tribes and territories.

November—December 2021 Newsletter

Check out our newsletter for stories on Infrastructure, New Leadership, Emergency Response, and More.

July—August 2021 Newsletter

News From EPA's Pacific Southwest Region (Region 9).

July—September 2024 Newsletter

See the newsletter for information about climate and environmental justice, EPA’s work on the Maui wildfire recovery, a new Fire and Smoke Map, Preparedness Month, and more!

October—December 2024 Newsletter

Check out our October-December newsletter for information about protecting drinking water from lead, automotive trends, and our region-wide accomplishments in 2024!

Co-sponsorship of Tribal/EPA Annual Conferences

EPA Region 9 General Assistance Program Funding Opportunity: Co-sponsorship of the 33rd and 34th Tribal/EPA Annual Conference. Letter of Intent Due January 16, 2026.

Water Quality Assessment Report Guidance Documents for Region 9 Tribes

This document page contains Region 9 guidance documents related to Water Quality Assessment Reports, which are part of reporting requirements for tribes receiving CWA Section 106 grants.

AP 42, Fifth Edition, Volume I Chapter 10: Wood Products Industry - Documents

Clean Water Indian Set-Aside (CWISA) Program

To assist federally recognized Tribes within EPA Region 9 to improve wastewater infrastructure. Funds may be used for planning, design and construction of wastewater collection and treatment systems.

AP 42, Fifth Edition, Volume I Chapter 9: Food and Agricultural Industries - Documents