Contact EPA Pacific Southwest Air Program
Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
2008 Ground-Level Ozone Standards - Final Designations
On April 30, 2012, EPA finalized the area designations for the 2008 air quality standards for smog, also known as ground-level ozone. These decisions are based on air quality monitoring data, recommendations submitted by the states and tribes, and other technical information.
General Background Information on Designations
Contact
John Kelly (kelly.johnj@epa.gov)
(415) 947-4151
- Area Designations for 2008 Ground-level Ozone Standards
- State Recommendations and EPA Responses
- Tribal Recommendations and EPA Responses
Final Action
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The documents listed below are EPA's area-specific analyses for our final determinations regarding the designation of areas in the Pacific Southwest (Region 9) for the 2008 ground-level ozone standards. These responses are provided in PDF format for INFORMATIONAL PURPOSES ONLY. For official designation listings, please refer to 40 CFR part 81, as updated in the Federal Register Notice for ozone designations.
AREA | TECHNICAL SUPPORT DOCUMENTS | EPA LETTER | |
ARIZONA | State of Arizona - All Technical Analyses (PDF) (21 pp, 716 K) State of Arizona - All Appendices (PDF) (8 pp, 646 K) |
AZ Gov letter (PDF) (3 pp, 232 K) | |
Phoenix-Mesa nonattainment area | Phoenix-Mesa Technical Analysis (PDF) (21 pp, 716 K)2 |
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Maricopa County (p) | |||
Pinal County (p) | |||
Fort McDowell Yavapai Nation | Fort McDowell letter (PDF) | ||
Salt River Pima-Maricopa Indian Community of the Salt River Reservation | Salt River letter (PDF) | ||
Tohono O'odham Nation of Arizona (p) | Tohono O'odham letter (PDF) | ||
Rest of State1 - unclassifiable/attainment | |||
1Includes any Indian
country, unless otherwise specified. 2For Appendices, please see "State of Arizona - All Appendices." |
CALIFORNIA |
State of California
Summary document (PDF) (5 pp, 34 K) 2 State of California - All Technical Analyses (PDF) (212 pp, 3.8M) State of California - All Appendices (PDF) (51 pp, 9M) 2 |
CA Gov letter (PDF) (3 pp, 317 K) | |
Calaveras County nonattainment area | Calaveras Technical Analysis (PDF) (15 pp, 634 K) 2 | ||
Calaveras County | |||
Chico (Butte County) nonattainment area | Chico Technical Analysis (PDF) (9 pp, 348 K) 2 | ||
Butte County | |||
Berry Creek Rancheria of Maidu Indians of California | Berry Creek letter (PDF) | ||
Enterprise Rancheria of Maidu Indians of California | Enterprise Rancheria letter (PDF) | ||
Mechoopda Indian Tribe of Chico Rancheria | Mechoopda letter (PDF) | ||
Mooretown Rancheria of Maidu Indians of California | Mooretown letter (PDF) | ||
Imperial County nonattainment area | Imperial Technical Analysis (PDF) (9 pp, 298 K) 2 | ||
Imperial County | |||
Quechan Tribe of the Fort Yuma Indian Reservation (p) | Quechan letter (PDF) | ||
Torres Martinez Desert Cahuilla Indians | Torres Martinez letter (PDF) | ||
Kern County (Eastern Kern) nonattainment area | Kern Technical Analysis (PDF) (10 pp, 334 K) 2 | ||
Kern County (p) | |||
Los Angeles-San Bernardino Counties (West Mojave Desert) nonattainment area | West Mojave Technical Analysis (PDF) (11 pp, 446 K) 2 | ||
Los Angeles County | |||
San Bernardino County (p) | |||
Twenty-Nine Palms Band of Mission Indians of California | Twenty-Nine Palms letter (PDF) | ||
Los Angeles-South Coast Air Basin nonattainment area | South Coast Technical Analysis (PDF) (13 pp, 537 K) 2 | ||
Los Angeles County | |||
Orange County | |||
San Bernardino County (p) | |||
Riverside County (p) | |||
Cahuilla Band of Mission Indians of the Cahuilla Reservation | Cahuilla letter (PDF) | ||
Ramona Band of Cahuilla | Ramona letter (PDF) | ||
San Manuel Band of Mission Indians | San Manuel letter (PDF) | ||
Soboba Band of Luiseno Indians | Soboba letter (PDF) | ||
Mariposa County nonattainment area | Mariposa Technical Analysis (PDF) (15 pp, 540 K) 2 | ||
Mariposa County | |||
Nevada County (Western part) nonattainment area | Nevada County Technical Analysis (PDF) (8 pp, 349 K) 2 | ||
Nevada County (p) | |||
Riverside County (Coachella Valley) nonattainment area | Coachella Technical Analysis (PDF) (11 pp, 387 K) 2 | ||
Riverside County (p) | |||
Agua Caliente Band of Cahuilla Indians of the Agua Caliente Indian Reservation | Agua Caliente letter (PDF) | ||
Augustine Band of Cahuilla Indians | Augustine letter (PDF) | ||
Cabazon Band of Mission Indians | Cabazon letter (PDF) | ||
Santa Rosa Band of Cahuilla Indians | Santa Rosa letter (PDF) | ||
Torres Martinez Desert Cahuilla Indians | Torres Martinez letter (PDF) | ||
Twenty-Nine Palms Band of Mission Indians of California | Twenty-Nine Palms letter (PDF) | ||
Sacramento Metro nonattainment area | Sacramento Metro Technical Analysis (PDF) (11 pp, 448 K) 2 | ||
Sacramento County | |||
Yolo County | |||
Solano County | |||
Sutter County (p) | |||
El Dorado County (p) | |||
Placer County (p) | |||
Shingle Springs Band of Miwok Indians, Shingle Springs Rancheria (Verona Tract) | Shingle Springs letter (PDF) | ||
United Auburn Indian Community of the Auburn Rancheria of California | United Auburn letter (PDF) | ||
Yocha Dehe Wintun Nation | Yocha letter (PDF) | ||
San Diego County nonattainment area | San Diego Technical Analysis (PDF) (18 pp, 430 K) 2 | ||
San Diego County | |||
Barona Group of Capitan Grande Band of Mission Indians of the Barona Reservation | Barona letter (PDF) | ||
Campo Band of Diegueño Mission Indians of the Campo Indian Reservation | Campo letter (PDF) | ||
Ewiiaapaayp Band of Kumayaay Indians | Ewiiaapaayp Letter (PDF) | ||
Iipay Nation of Santa Ysabel | Iipay letter (PDF) | ||
Inaja Band of Diegueño Mission Indians of the Inaja and Cosmit Reservation | Inaja letter (PDF) | ||
Jamul Indian Village of California | Jamul letter (PDF) | ||
La Jolla Band of Luiseño Indians | La Jolla letter (PDF) | ||
La Posta Band of Diegueño Mission Indians of the La Posta Indian Reservation | La Posta letter (PDF) | ||
Los Coyotes Band of Cahuilla and Cupeño Indians | Los Coyotes letter (PDF) | ||
Manzanita Band of Diegueño Mission Indians of the Manzanita Reservation | Manzanita letter (PDF) | ||
Mesa Grande Band of Diegueño Mission Indians of the Mesa Grande Reservation | Mesa letter (PDF) | ||
Pala Band of Luiseño Mission Indians of the Pala Reservation | Pala letter (PDF) | ||
Pauma Band of Luiseño Mission Indians of the Pauma and Yuima Reservation | Pauma letter (PDF) | ||
Rincon Band of Mission Luiseño Indians of the Rincon Reservation | Rincon letter (PDF) | ||
San Pasqual Band of Diegueño Mission Indians of California | San Pasqual letter (PDF) | ||
Sycuan Band of the Kumeyaay Nation | Sycuan letter (PDF) | ||
Viejas (Baron Long) Group of Capitan Grande Band of Mission Indians of the Viejas Reservation | Viejas letter (PDF) | ||
San Francisco Bay Area nonattainment area | SF Bay Area Technical Analysis (PDF) (12 pp, 439 K) 2 | ||
San Francisco County | |||
Marin County | |||
Sonoma County (p) | |||
Napa County | |||
Solano County | |||
Contra Costa County | |||
Alameda County | |||
Santa Clara County | |||
San Mateo County | |||
Federated Indians of Graton Rancheria | Graton letter (PDF) | ||
Lytton Rancheria of California | Lytton letter (PDF) | ||
San Joaquin Valley nonattainment area | SJV Technical Analysis (PDF) (16 pp, 488 K) 2 | ||
San Joaquin County | |||
Stanislaus County | |||
Merced County | |||
Madera County | |||
Fresno County | |||
Kings County | |||
Tulare County | |||
Kern County (p) | |||
Big Sandy Rancheria of Mono Indians of California | Big Sandy letter (PDF) | ||
Cold Springs Rancheria of Mono Indians of California | Cold Springs letter (PDF) | ||
North Fork Rancheria of Mono Indians of California | North Fork letter (PDF) | ||
Picayune Rancheria of Chuckchansi Indians of California | Picayune letter (PDF) | ||
Santa Rosa Indian Community of the Santa Rosa Rancheria | Santa Rosa letter (PDF) | ||
Table Mountain Rancheria of California | Table Mountain letter (PDF) | ||
Tule River Indian Tribe of the Tule River Reservation | Tule River letter (PDF) | ||
San Luis Obispo (Eastern San Luis Obispo) nonattainment area | SLO Technical Analysis (PDF) (15 pp, 492 K) 2 | ||
San Luis Obispo County (p) | |||
Tuscan Buttes nonattainment area | Tuscan Buttes Technical Analysis (PDF) (9 pp, 343 K)2 |
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Tehama County (p) | |||
Ventura County nonattainment area | Ventura Technical Analysis (PDF) (10 pp, 327 K) 2 | ||
Ventura County (p) | |||
Morongo Band of Mission Indians nonattainment area | Morongo Technical Analysis (PDF) (8 pp, 368 K) 2 | Morongo letter (PDF) | |
Morongo Band of Mission Indians' Indian country | |||
Pechanga Band of Luiseño Mission Indians of the Pechanga Reservation nonattainment area | Pechanga Technical Analysis (PDF) (7 pp, 310 K) 2 | Pechanga letter (PDF) | |
Pechanga Band of Luiseño Mission Indians of the Pechanga Reservation's Indian country | |||
Rest of State1 - unclassifiable/attainment | |||
1Includes any Indian
country, unless otherwise specified. 2For Appendices, please see "State of California - All Appendices." |
HAWAII - unclassifiable/attainment | Hawaii Gov letter (PDF) (2 pp, 168 K) |
NEVADA and ANY AREAS OF INDIAN COUNTRY - unclassifiable/attainment | Nevada Gov letter (PDF) (2 pp, 168 K) |
AMERICAN SAMOA - unclassifiable/attainment | Amer. Samoa letter (PDF) (2 pp, 168 K) |
GUAM - unclassifiable/attainment | Guam letter (PDF) (2 pp, 168 K) |
NORTHERN MARIANA ISLANDS - unclassifiable/attainment | CNMI letter (PDF) (2 pp, 171 K) |