Tapcensus

Water quality for ZIP code 90057

ZIP 90057 covers Los Angeles in Los Angeles County, California, one of 295 ZIP codes in the county. 271 active public water systems serve the county; 66 had an EPA violation in the past three years.

Most likely your provider

Los Angeles-City, Dept. of Water & Power CA1910067 · Community water system · Surface water · Los Angeles
Serves 3,875,566 people Rules violated, past 3 years 0 Distance 8.3 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in Los Angeles County

198 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Vernon-City, Water Dept.
Vernon		 28,112 0 5.4 mi
California Water Service Co. Ela
 142,140 0 6.5 mi
Huntington Park-City, Water Dept.
Huntington Park		 15,437 0 6.6 mi
Gswc Florence/graham
 63,472 0 6.7 mi
Cal/am Water Company Baldwin Hills
 20,724 0 6.7 mi
Maywood Mutual Water Co. #1
 3,851 0 7.1 mi
Beverly Hills-City, Water Dept.
Beverly Hills		 39,922 0 7.2 mi
Walnut Park Mutual Water Co.
 16,180 1 7.2 mi
Maywood Mutual Water Co. #3
 6,059 0 7.3 mi
Maywood Mutual Water Co. #2
 6,349 0 7.3 mi
City of South Pasadena
South Pasadena		 25,329 0 7.6 mi
Gswc Culver City
Santa Fe Springs		 38,233 0 7.8 mi
Inglewood City, Water Dept.
Inglewood		 81,191 0 8.0 mi
City of Alhambra
Alhambra		 80,279 0 8.2 mi
Tract 349 Mutual Water Co.
 8,700 0 8.2 mi
Monterey Park-City, Water Dept.
Monterey Park		 61,096 1 8.3 mi
Glendale-City, Water Dept.
Glendale		 192,212 0 8.4 mi
Commerce-City, Water Dept.
Montebello		 3,598 0 8.4 mi
Tract 180 Mutual Water Co.
 14,000 1 8.8 mi
Gswc Bell, Bell Gardens
 55,050 0 8.8 mi
South Gate-City, Water Dept.
South Gate		 88,544 0 9.0 mi
Burbank-City, Water Dept.
Burbank		 106,146 0 9.1 mi
City of Bell Gardens
Bell Gardens		 11,413 0 9.6 mi
San Gabriel Valley Water Co-Montebello 2
Montebello		 3,731 0 10.0 mi
Gswc Willowbrook
 10,793 0 10.1 mi
All 199 community water systems in Los Angeles County
Non-community systems in Los Angeles County (72: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Young-Nak Presbyterian Church
 25 0 0
Plant Water Well Rockview Dairy
South Gate 		45 0 0
Rancho los Amigos Hospital
 3,200 0 0
Millard Canyon Improvement Association
 42 1 0
Henninger Flats
 50 0 0
Usfs-Red Box Station A-3
 25 0 0
Clear Creek Outdoor Education Center
 105 0 0
Rancho Ybarra Christian Camp
 73 0 0
Usfs-Chantry Flats-A16 Water
 113 0 0
Martin Marietta Southern Calif Aggregate
 51 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
Angeles Shooting Ranges
 490 0 0
Colby Ranch-United Methodist Camp
 180 0 0
Irwindale Brewery Yard (iby)
 300 0 0
Usfs-Monte Cristo Camp T-4
 116 0 0
Angeles Crest Christian Camp
 112 1 0
Acton la North KOA
 400 0 0
Acton Conservation Camp #11
 90 4 0
Usfs-Chilao Main A-9
 50 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
Acton Four Square Church
 50 0 0
Acton-Agua Dulce Lds Church
 150 0 0
Coldbrook Campground
 38 0 0
Vasquez Rocks County Park
 30 0 0
Ilead Agua Dulce Charter School
 450 1 1
Agua Dulce Women's Club
 50 0 0
Wagon Wheel Plaza
 55 1 0
Lang Ranch Shopping Center
 28 0 0
Agua Dulce Water System
 493 0 0
Usfs-Crystal Lake B-13 Water
 2,000 0 0
LE Chene Restaurant Water System
 100 0 0
Agua Dulce Winery
 113 0 0
Shepherd of the Hills
 80 0 0
Living Springs Church
 50 0 0
Texas Canyon Ranger Station
 30 0 0
Saint Andrews Abbey
 210 1 1
Huttopia Paradise Springs
 302 1 0
Usfs-Valyermo Ranger Station
 25 1 1
Anchor Retreat Center
 202 0 0
Camp Elk
 121 0 0
Usfs-Jackson Lake V-4
 805 0 0
Usfs-Appletree Flats V-3
 25 0 0
Desert Aire Golf Course
 80 0 0
Lockheed Martin Skunk Works
 135 0 0
Los Angeles World Airports
 180 0 0
Mountain High East Ski Area
 150 0 0
Mount Kare Camp/kare Youth League
 59 0 0
Usfs-Big Pines V-2
 54 0 0
Northrop Grumman Corp.
 5,764 1 0
Los Angeles, City of Castaic Pwr Plant
 55 0 0
All non-community systems
About this data

Water systems are matched to Los Angeles County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The California records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.