Jump to main content or area navigation.

Contact Us

Area Designations for 2006 24-Hour Fine Particle (PM2.5) Standards

2006 24-Hour PM2.5 Standards — Final Tribal Designations, October 2009

This is an unofficial list of tribes in 24-hour PM2.5 nonattainment areas as of October 8, 2009. Official nonattainment boundaries are specified in 40 CFR Part 81. This document in no way establishes tribal territories.

Map showing rough locations of tribes in nonattainment areas across the United States

Tribes in 24-Hour PM2.5 Nonattainment Areas

  • Big Sandy Rancheria of Mono Indians of California
  • Cahuilla Band of Mission Indians of the Cahuilla Reservation, California
  • Cold Springs Rancheria of Mono Indians of California
  • Enterprise Rancheria of Maidu Indians of California
  • Federated Indians of Graton Rancheria
  • Forest County Potawatomi Tribe
  • Lytton Rancheria of California
  • Mechoopda Indian Tribe of Chico Rancheria
  • Mooretown Rancheria of Maidu Indians of California
  • Morongo Band of Cahuilla Mission Indians of the Morongo Reservation, California
  • North Fork Rancheria of Mono Indians of California
  • Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation, California
  • Picayune Rancheria of Chukchansi Indians of California
  • Puyallup Tribe of the Puyallup Reservation, Washington
  • Ramona Band or Village of Cahuilla Mission Indians of California
  • San Manuel Band of Serrano Mission Indians of the San Manuel Reservation, California
  • Santa Rosa Indian Community of the Santa Rosa Rancheria, California
  • Shingle Springs Band of Miwok Indians, Shingle Springs Rancheria (Verona Tract), California
  • Soboba Band of Luiseno Mission Indians of the Soboba Reservation, California
  • Table Mountain Rancheria of California
  • Tule River Indian Tribe of the Tule River Reservation, California
  • United Auburn Indian Community of the Auburn Rancheria of California

Tribal Recommendations and EPA Responses

Tribal Area Status December 2008 (Not Final)

Jump to main content.