California Infrastructure SIP Emergency Episode Planning TSD

Appendix A: California Air Quality Control Regions, Classifications, and Regulations

Last updated 9/30/2014

AQCR (# of Districts) PM SOx NO2 CO Ozone District Regulation # NAAQS Pollutants Covered Approved? FR Citation FR Date

Great Basin Valley (1) III to I III III III III Great Basin Unified Rule 701 PM10, PM2.5 Pending

Lake County (1) II III III III III Lake n/a

El Dorado (p) n/a

Placer (p) n/a

Santa Barbara (p) 7 Ozone, CO, SO2, PM10 Yes 47 FR 26618 6/21/1982

South Coast (p) 7 Ozone, CO, SO2, NO2, PM10 Yes 64 FR 14391 3/25/1999

Ventura 8 Ozone Yes 64 FR 13351 3/18/1999

Amador n/a

Calaveras n/a

El Dorado (p) n/a

Mariposa n/a

Northern Sierra n/a

Placer (p) n/a

Tuolumne n/a

North Central Coast (1) II III III III I to III Monterey Bay

Unified 7 Ozone Yes 52 FR 26148 7/13/1987

Mendocino n/a

North Coast Unified n/a

Northern Sonoma n/a

Lassen n/a

Modoc n/a

Shasta (p) n/a

Siskiyou n/a

Butte n/a

Colusa n/a

Feather River n/a

Glenn n/a

Sacramento Metro 7 Ozone, CO, PM10 Yes 65 FR 53602 9/5/2000

Shasta (p) n/a

Tehama n/a

Yolo-Solano 7 Ozone, CO No

San Diego (1) II III III I I San Diego 8 Ozone, CO Yes

64 FR 13351 

47 FR 26619 

43 FR 38826

3/18/1999 

6/21/1982 

8/31/1978

San Francisco Bay Area (1) II II to III III I I Bay Area 4 Ozone, CO, SO2, PM10 Yes 55 FR 31833 8/6/1990

Eastern Kern (p) 6 Ozone, CO, PM10 Yes 47 FR 26619 

45 FR 37689

6/21/1982 

6/4/1980

San Joaquin Valley 6 Ozone, CO, SO2, PM10 Yes 71 FR 8461 2/17/2006

Santa Barbara (p) 7 Ozone, CO, SO2, PM10 Yes 47 FR 26618 6/21/1982

San Luis Obispo n/a

Antelope Valley 7 Ozone, CO, SO2, NO2, PM10 Yes 68 FR 10966 3/7/2003

Eastern Kern (p) 6 Ozone, CO, PM10 Yes 47 FR 26619 

45 FR 37689

6/21/1982 

6/4/1980

Imperial 6 Ozone Yes 46 FR 8472 1/27/1981

Mojave Desert 7-(Riverside Co.) 

7-(San Bern. Co.) Ozone Yes (both Co.)

45 FR 37428 

47 FR 26618 

45 FR 37428

6/3/1980 

6/21/1982 

6/3/1980

South Coast (p) 7 Ozone, CO, SO2, NO2, PM10 Yes 64 FR 14391 3/25/1999

(p) = portion of district

n/a = polllutant-specific emergency episode contingency plan does not appear on Region 9 EPA website of the California SIP (http://yosemite.epa.gov/r9/r9sips.nsf/Casips?readform&count=100&state=California)

nor in California Air Resource Board website of District Rules (http://www.arb.ca.gov/drdb/drdbltxt.htm) 

= California's request to reclassify to Priority III proposed to be granted; proposed change in Priority classification shown in table

= California's request to reclassify to Priority III proposed to be denied; also indicates districts within AQCR with 1-hour ozone reading above 0.10 ppm during 2011-2013

= EPA proposed reclassification; proposed change in Priority classification shown in table

I

II III III I

III III

III III III

I

Metropolitan Los Angeles (3)

Classification at 40 CFR 52.221 (Priority I, IA, II, or III)

II III III I I

District Regulations SIP Approval

I II to III I to III I I

I

Lake Tahoe (2) II III III I I to III

North Coast (3) II III III III III

Mountain Counties (7)

Southeast Desert (5)

Sacramento Valley (8)

III

Northeast Plateau (4) III III III III III

San Joaquin Valley (2) I to II III III I I

South Central Coast (2) III III