Tapcensus

Water quality for ZIP code 90052

ZIP 90052 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

Other community water systems in Los Angeles County

198 systems, largest first
SystemServesStatusRules violated, 3 yr
Long Beach Utilities Department
Long Beach
466,772 0
Santa Clarita Valley Water Agency
292,014 0
Gswc Southwest
277,740 0
San Gabriel Valley Water Co.-El Monte
240,000 0
Los Angeles Cwwd 40 Reg 4 & 34 Lancaster
208,129 0
Glendale-City, Water Dept.
Glendale
192,212 0
Suburban Water Systems-San Jose
170,523 0
Pasadena Water and Power
Pasadena
165,448 0
Pomona City, Water Dept.
Pomona
151,713 0
California Water Service Co. Dominguez
149,490 0
California Water Service Co. Ela
142,140 0
Palmdale Water Dist.
126,804 0
Downey City, Water Dept.
Downey
110,556 0
Azusa Light and Water
110,044 0
Torrance-City, Water Dept.
Torrance
106,183 0
Burbank-City, Water Dept.
Burbank
106,146 0
Walnut Valley Water District
100,941 0
California Water Service Co. Herm/redo
100,072 0
Compton-City, Water Dept.
Compton
90,986 0
Santa Monica-City, Water Division
Santa Monica
90,729 0
South Gate-City, Water Dept.
South Gate
88,544 0
Inglewood City, Water Dept.
Inglewood
81,191 0
City of Alhambra
Alhambra
80,279 0
Las Virgenes Mwd
77,562 0
Liberty Utilities Bellflower-Norwalk
72,472 0
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
Antelope Valley Poppy Reserve State Park
25,007 0 0
Northrop Grumman Corp.
5,764 1 0
Rancho los Amigos Hospital
3,200 0 0
Flying J Travel Center
2,565 0 0
Usfs-Crystal Lake B-13 Water
2,000 0 0
Camp Verdugo Oaks Boyscouts
1,500 0 0
Del Sur School/westside Union District
825 1 0
1000 Trails / Soledad Canyon Preserve
812 1 0
Usfs-Jackson Lake V-4
805 0 0
Eastside Union School District
650 1 1
Hughes-Elizabeth Lake Unified School Dis
550 2 1
Antelope Valley Indian Museum State Park
506 0 0
Lancaster National Soccer Center
Lancaster
500 0 0
Mira Loma High Desert Hospital
500 0 0
Agua Dulce Water System
493 0 0
Angeles Shooting Ranges
490 0 0
Ilead Agua Dulce Charter School
450 1 1
General Atomics Aeronautical Gray Butt
405 0 0
Acton la North KOA
400 0 0
Huttopia Paradise Springs
302 1 0
Irwindale Brewery Yard (iby)
300 0 0
Saint Andrews Abbey
210 1 1
Anchor Retreat Center
202 0 0
Usfs-Buckhorn Camp A-12 Water
185 0 0
Colby Ranch-United Methodist Camp
180 0 0
Los Angeles World Airports
180 0 0
Canyon Creek Outdoor Education Center
177 0 0
Acton-Agua Dulce Lds Church
150 0 0
Mountain High East Ski Area
150 0 0
Dwr. Vista del Lago Visitor Ctr,vaquerro
135 0 0
Lockheed Martin Skunk Works
135 0 0
Quail Canyon Sea
130 0 0
Camp Elk
121 0 0
Usfs-Monte Cristo Camp T-4
116 0 0
Agua Dulce Winery
113 0 0
Usfs-Chantry Flats-A16 Water
113 0 0
Angeles Crest Christian Camp
112 1 0
Halfway House Cafe
112 1 0
Clear Creek Outdoor Education Center
105 0 0
LE Chene Restaurant Water System
100 0 0
Acton Conservation Camp #11
90 4 0
Desert Aire Golf Course
80 0 0
Shepherd of the Hills
80 0 0
Rancho Ybarra Christian Camp
73 0 0
The Oaks
67 0 0
Tarzana Treatment Centers, Inc.
60 0 0
Mount Kare Camp/kare Youth League
59 0 0
Los Angeles, City of Castaic Pwr Plant
55 0 0
Wagon Wheel Plaza
55 1 0
Usfs-Big Pines V-2
54 0 0
All non-community systems
About this data

Water systems are matched to Los Angeles County, the county this ZIP code lies in, largest 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.

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.