Los Angeles County, CA drinking water systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

EPA has no service area map for these systems. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

• Acton2 systems
• Agoura Hills1 system
• Agua Dulce6 systems
• Alhambra1 system
• Alondra Park1 system
• Altadena5 systems
• Arcadia1 system
• Artesia1 system
• Avalon1 system
• Avocado Heights2 systems
• Azusa2 systems
• Baldwin Park3 systems
• Bell1 system
• Bellflower3 systems
• Bell Gardens2 systems
• Beverly Hills2 systems
• Bradbury1 system
• Burbank1 system
• Calabasas1 system
• Carson2 systems
• Castaic6 systems
• Cerritos1 system
• Charter Oak2 systems
• Citrus1 system
• Claremont2 systems
• Commerce2 systems
• Compton3 systems
• Covina5 systems
• Cudahy2 systems
• Culver City2 systems
• Del Aire1 system
• Desert View Highlands2 systems
• Diamond Bar2 systems
• Downey1 system
• Duarte1 system
• East Los Angeles1 system
• East Pasadena2 systems
• East Rancho Dominguez1 system
• East San Gabriel3 systems
• East Whittier2 systems
• Elizabeth Lake2 systems
• El Monte6 systems
• El Segundo1 system
• Florence-Graham1 system
• Gardena1 system
• Glendale3 systems
• Glendora4 systems
• Green Valley1 system
• Hacienda Heights3 systems
• Hasley Canyon3 systems
• Hawaiian Gardens1 system
• Hawthorne2 systems
• Hermosa Beach1 system
• Hidden Hills1 system
• Huntington Park4 systems
• Industry5 systems
• Inglewood2 systems
• Irwindale2 systems
• La Cañada Flintridge4 systems
• La Crescenta-Montrose2 systems
• Ladera Heights2 systems
• La Habra Heights1 system
• Lake Hughes3 systems
• Lake Los Angeles2 systems
• Lakewood2 systems
• La Mirada2 systems
• Lancaster18 systems
• La Puente2 systems
• La Verne3 systems
• Lawndale1 system
• Lennox1 system
• Leona Valley3 systems
• Littlerock3 systems
• Lomita1 system
• Long Beach1 system
• Los Angeles1 system
• Lynwood2 systems
• Malibu1 system
• Manhattan Beach1 system
• Mayflower Village1 system
• Maywood2 systems
• Monrovia1 system
• Montebello5 systems
• Monterey Park1 system
• North El Monte1 system
• Norwalk3 systems
• Palmdale6 systems
• Palos Verdes Estates1 system
• Paramount1 system
• Pasadena1 system
• Pepperdine University1 system
• Pico Rivera3 systems
• Pomona3 systems
• Quartz Hill3 systems
• Rancho Palos Verdes1 system
• Redondo Beach1 system
• Rolling Hills1 system
• Rolling Hills Estates1 system
• Rose Hills1 system
• Rosemead5 systems
• Rowland Heights3 systems
• San Dimas3 systems
• San Fernando2 systems
• San Gabriel3 systems
• San Marino1 system
• San Pasqual1 system
• Santa Clarita7 systems
• Santa Fe Springs2 systems
• Santa Monica1 system
• Sierra Madre1 system
• Signal Hill1 system
• South El Monte1 system
• South Gate2 systems
• South Monrovia Island2 systems
• South Pasadena1 system
• South San Gabriel2 systems
• South San Jose Hills3 systems
• South Whittier4 systems
• Stevenson Ranch5 systems
• Sun Village3 systems
• Temple City4 systems
• Topanga1 system
• Torrance3 systems
• Valinda1 system
• Val Verde3 systems
• Vernon1 system
• View Park-Windsor Hills2 systems
• Vincent1 system
• Walnut4 systems
• Walnut Park1 system
• West Athens1 system
• West Carson1 system
• West Covina3 systems
• West Hollywood2 systems
• Westlake Village1 system
• Westmont1 system
• West Puente Valley2 systems
• West Rancho Dominguez2 systems
• West Whittier-Los Nietos1 system
• Whittier3 systems
• Willowbrook4 systems