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21865 Copley Drive, Diamond Bar, CA 91765−4182 Information: 1−800−CUT−SMOG (1−800−288−7664) Internet 21865 Copley Drive, Diamond Bar, CA 91765−4182 Information: 1−800−CUT−SMOG (1−800−288−7664) Internet: http://www.aqmd.gov KERN COUNTY LOS ANGELES COUNTY COUNTY BERNARDINO SAN Lancaster The South Coast Air Quality prevailing winds are strong enough to Basin and a portion of the Mojave L Management District is the agency disperse it into other areas. Desert Air Basin. San Luis Obispo O Kern San Bernardino S V responsible for attaining state and In 1977, the California The map at right depicts A E N N G Palmdale federal clean air standards in the Legislature created the South Coast Southern California Air Basins, with Santa Barbara T U E L RA COUNTY South Coast Air Basin. AQMD by merging the air pollution the South Coast AQMD in blue. E S COUNTY All of California is divided control districts of the four counties Thus, the South Coast Air Ventura Castaic into air basins, which are served by sharing the South Coast Air Basin. Basin covers an area of 6,745 square Los Angeles either county air pollutionVictorville control This basin includes portions of Los miles with a population of 14.6 Riverside districts or multi−county air quality Angeles, Riverside and San million, while the larger South Coast Orange management districts. Bernardino counties and all of district boundary includes 10,743 Legend Hesperia Surrounding Air Basins Santa Clarita Air pollution tends to stagnate Orange County. Within Riverside square miles and a population of 15 South Coast Air Quality Management District Imperial within these air basins due to natural County, the AQMD also has million. County Boundaries barriers, such as mountains, unless jurisdiction over the Salton Sea Air Air Basin Boundaries San Diego San Simi Valley Fernando Crestline Big Bear Lake La Canada Thousand Oaks Reseda Flintridge UNTY Glendale O Burbank C Monrovia S Agoura Calabasas Pasadena Azusa Glendora E Rancho Hills L Upland Cucamonga San Irwindale San Dimas E Highland Covina Claremont G Fontana Bernardino Twentynine Palms SAN BERNARDINO COUNTY Beverly West Hollywood Rosemead N Yucca Valley A Montclair Rialto Hills Colton Los Angeles Monterey Pomona S Redlands Malibu Santa Monica Park Industry Walnut O Ontario SAN BERNARDINO Loma Linda Yucaipa Montebello L COUNTY Grand Terrace RIVERSIDE COUNTY Culver Diamond Bar Chino RIVERSIDE COUNTY City Huntington Park Pico Rivera Rubidoux Calimesa Inglewood Whittier South Gate UNTY Chino Hills Desert Hot El CO Banning Segundo Downey S La Habra Riverside Springs Lynwood La Norco Beaumont Hawthorne Mirada E Brea O Moreno Valley Manhattan L Yorba R Beach E Fullerton Linda A Cerritos G Placentia N Corona Lakewood N Buena Park G R Redondo A La E IV Palm Springs Beach S Anaheim E Torrance Palma C R O Cypress Villa Park O L Stanton UNTYSIDE Cathedral City Palos Verdes Los Alamitos Orange Perris San Jacinto Estates Long Garden Rancho Mirage Rancho Palos Grove Verdes Beach Seal Westminster Desert Beach Tustin Hemet Center Fountain Palm Desert Valley COUN Canyon Santa Ana T Lake Indian Huntington Y Indio Beach Lake Wells Coachella Costa Elsinore La Quinta Mesa Irvine Lake Forest Newport Mission Viejo Beach Laguna Hills COUNTY E G Murrieta Laguna N Beach Laguna A Niguel R Temecula O Dana San Juan Point Capistrano RIVERSIDE COUNTY San RIVERSIDE COUNTY Clemente SAN DIEGO COUNTY IMPERIAL COUNTY Pope Catalina Fallbrook Avalon Copyright 1999 by Sierra Wade Associates www.sierrawade.com.
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  • Monday, August 30, 2021
    Monday, August 30, 2021 Clerk of the Board, South Coast AQMD, 21865 Copley Drive Dimond Bar, CA 91765-4178 South Coast Air Quality Management District Governing Board Members: The Sierra Club submits the following 560 digital signatures on the behalf of our members and supporters, urging the South Coast Air Quality Management District to implement a strong Refinery Rule (1109.1). Petition Language: Dear Governing Board Members: We submit this letter in support of Refinery Rule 1109.1, which would bring our region closer to meeting air quality standards to protect public health. Our region continues to have the worst ground-level ozone pollution in the nation. This pollution threatens the health of residents in the region with a range of harms, including asthma, diminished lung function, and premature death. These harms, in turn, cause negative socio- economic impacts, such as increased health care costs, missed workdays, and school absences. Petroleum refineries are a major source of ozone-causing pollution. For decades, refineries have avoided installing available life-saving pollution controls on hundreds of pieces of equipment, such as large boilers and heaters. As a result, refineries have saved millions of dollars. Refinery Rule 1109.1 would require refineries to finally install available controls on equipment that will improve public health and create jobs. We encourage you to adopt a strong Refinery Rule 1109.1 that secures the maximum amount of emissions reductions at petroleum refineries as quickly as possible. Refineries have had five years to install these pollution controls but have delayed making these necessary investments and are currently lobbying to keep delaying indefinitely.
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  • Appendix G: Supplemental Water Supply Information
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  • Air Quality Element
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  • Valid Saturday September 12, 2020 Through Sunday September 13, 2020
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  • Assessing Physical Conditions of South Coast Mpas
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