Tapcensus

Water quality for ZIP code 90063

ZIP 90063 covers East Los Angeles, Los Angeles, and Monterey Park 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

California Water Service Co. Ela CA1910036 · Community water system · Surface water purchased
Serves 142,140 people Rules violated, past 3 years 0 Last sanitary survey Dec 20, 2024 Distance 1.3 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
Monterey Park-City, Water Dept.
Monterey Park		 61,096 1 3.1 mi
Vernon-City, Water Dept.
Vernon		 28,112 0 3.3 mi
Commerce-City, Water Dept.
Montebello		 3,598 0 3.9 mi
City of Alhambra
Alhambra		 80,279 0 3.9 mi
Maywood Mutual Water Co. #2
 6,349 0 4.0 mi
Maywood Mutual Water Co. #3
 6,059 0 4.0 mi
Maywood Mutual Water Co. #1
 3,851 0 4.2 mi
City of South Pasadena
South Pasadena		 25,329 0 4.8 mi
Montebello Land & Water Co.
 26,554 1 4.9 mi
Huntington Park-City, Water Dept.
Huntington Park		 15,437 0 4.9 mi
Gswc-South San Gabriel
 26,451 0 5.1 mi
South Montebello Irrigation Dist.
 15,021 0 5.2 mi
San Gabriel Valley Water Co-Montebello 2
Montebello		 3,731 0 5.3 mi
Gswc Bell, Bell Gardens
 55,050 0 5.3 mi
City of Bell Gardens
Bell Gardens		 11,413 0 5.5 mi
Tract 349 Mutual Water Co.
 8,700 0 5.5 mi
Tract 180 Mutual Water Co.
 14,000 1 5.7 mi
Walnut Park Mutual Water Co.
 16,180 1 5.7 mi
San Gabriel Valley Water Co-Montebello 1
 5,205 0 5.7 mi
San Gabriel County WD
 40,154 0 6.2 mi
Gswc Florence/graham
 63,472 0 6.2 mi
Amarillo Mutual Water Company
 3,134 0 6.2 mi
Pico Rivera City, Water Dept.
Pico Rivera		 39,451 0 6.5 mi
Pico WD
 22,051 0 6.7 mi
South Gate-City, Water Dept.
South Gate		 88,544 0 6.7 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
Martin Marietta Southern Calif Aggregate
 51 0 0
Millard Canyon Improvement Association
 42 1 0
Henninger Flats
 50 0 0
Usfs-Chantry Flats-A16 Water
 113 0 0
Usfs-Red Box Station A-3
 25 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
Irwindale Brewery Yard (iby)
 300 0 0
Clear Creek Outdoor Education Center
 105 0 0
Rancho Ybarra Christian Camp
 73 0 0
Colby Ranch-United Methodist Camp
 180 0 0
Angeles Shooting Ranges
 490 0 0
Usfs-Monte Cristo Camp T-4
 116 0 0
Angeles Crest Christian Camp
 112 1 0
Usfs-Chilao Main A-9
 50 0 0
Coldbrook Campground
 38 0 0
Acton la North KOA
 400 0 0
Usfs-Crystal Lake B-13 Water
 2,000 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
Acton Conservation Camp #11
 90 4 0
Acton Four Square Church
 50 0 0
Acton-Agua Dulce Lds Church
 150 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
Lang Ranch Shopping Center
 28 0 0
Wagon Wheel Plaza
 55 1 0
Agua Dulce Water System
 493 0 0
Huttopia Paradise Springs
 302 1 0
Saint Andrews Abbey
 210 1 1
Agua Dulce Winery
 113 0 0
Shepherd of the Hills
 80 0 0
Living Springs Church
 50 0 0
LE Chene Restaurant Water System
 100 0 0
Usfs-Valyermo Ranger Station
 25 1 1
Camp Elk
 121 0 0
Texas Canyon Ranger Station
 30 0 0
Usfs-Jackson Lake V-4
 805 0 0
Usfs-Appletree Flats V-3
 25 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
Anchor Retreat Center
 202 0 0
Desert Aire Golf Course
 80 0 0
Los Angeles World Airports
 180 0 0
Lockheed Martin Skunk Works
 135 0 0
Northrop Grumman Corp.
 5,764 1 0
Lancaster National Soccer Center
Lancaster 		500 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.