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Tribal Programs in EPA's Pacific Southwest (Region 9)

  • Tribal News

    • EPA Announces Over $5.6 Million in Grants to Tribes within California for Recycling Infrastructure Projects

    • EPA Recognizes Excellence and Innovation in Bay Area and San Diego Area Water Infrastructure Projects

     
    All Recent Tribal News
  • Public Notices and Events

    • San Diego - Tijuana Air Quality Task Force

      • September 9, 2026
    • Final Permit Decision to Issue a Permit under the Clean Air Act Federal Indian Country Minor New Source Review Program; NTEC Energy Generation Plant, San Juan County, New Mexico

EPA’s Pacific Southwest Region (Region 9) is committed to helping Tribes strengthen their abilities to manage environmental programs in Indian Country, and to ensure that Tribes have a voice in decisions that affect their land, air and water. The regional office serves 148 federally-recognized Tribes in Arizona, California and Nevada.

EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

  • Tribal Air

    clean air

    The Tribal Air Program assists with air quality planning, permitting, rulemaking, enforcement and compliance, indoor air, monitoring and related technical support, grants, and climate change.

    Tribal Air Programs
  • Tribal Water

    Tribal Water

    Tribal Clean Water Act programs and grants support monitoring, assessment, protection, prevention of polluted runoff in waterways and wastewater infrastructure.

    Tribal Water Programs
  • GAP Funding

    GAP Funding

    The GAP (General Assistance Program) helps Tribes develop the capacity to plan and establish environmental protection programs to meet their individual needs.

    GAP Funding
  • Federally-Recognized Tribes

    Map of Federally-Recognized Tribes in EPA's Pacific Southwest (Region 9)

    A list of all 148 federally-recognized Tribes, and a map of Tribal lands, in EPA's Pacific Southwest (Region 9).

    Federally-Recognized Tribes
  • RTOC

    EPA in the Pacific Southwest (Region 9) RTOC Logo

    The Regional Tribal Operations Committee (RTOC) is a working committee of EPA and Tribal personnel co-chaired by an EPA representative and a Tribal representative.

    Region 9 RTOC
  • Newsletters

    Newsletters Banner

    EPA Pacific Southwest's Tribal Program newsletters contain environmental news and announcements of upcoming meetings, webinars and training, grants, jobs and internships.

    Tribal Newsletters

Superfund Sites On/Near Region 9 Tribal Lands

  • Anaconda Copper Mine
  • Carson River Mercury Site
  • Celtor Chemical Works
  • Copper Bluff Mine
  • Cyprus Tohono Mine
  • Iron Mountain Mine
  • Leviathan Mine
  • Lukachukai Mountains Mining District
  • Rio Tinto Copper Mine
  • Sulphur Bank Mercury Mine
  • Tucson International Airport Area

Public Notice

  • U.S. Home, LLC dba Lennar

  • Yeshiva Machzikei Torah Dchasidei Belz of NY

  • Clean Water Act (CWA) Section 401 water quality certification request for Regional General Permit SAJ-116 in Indian Country where the Seminole Tribe of Florida does not have Treatment in a Manner Similar to a State

  • Draft Permit for Blount Fine Foods, Warren, RI, RI0001121

  • Opportunity to Comment on a Water Quality Certification for the Lower Brule North Ecosystem Restoration Element 2 Project

More Region 9 Tribal Resources

  • Tribal Program Contacts
  • Tribes with Brownfields Programs
  • Tribal Consultation
  • Drinking Water Tribal Set-Aside Program
    • Lead Service Line Replacement (LSLR) Program
  • Tribal Clean Water Act Programs and Grants
  • Green Building Tools for Tribes
  • Navajo Nation: Cleaning Up Abandoned Uranium Mines
  • NPDES Permits
    • Navajo Nation
    • Arizona Tribal Lands (other than Navajo Nation)
    • California Tribal Lands
    • Nevada Tribal Lands
  • Tribal Wastewater
  • Tuba City Dump
  • Desotec US LLC (Formerly Evoqua Water Technologies)
  • Desert View Power
  • Havasu Water Company Public Water System
  • Pinyon Plain Mine
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on September 3, 2026
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