Tapcensus

Water quality for ZIP code 91411

ZIP 91411 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 5.3 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
Beverly Hills-City, Water Dept.
Beverly Hills		 39,922 0 7.7 mi
San Fernando-City, Water Dept.
San Fernando		 23,364 0 7.7 mi
Burbank-City, Water Dept.
Burbank		 106,146 0 7.8 mi
Los Angeles Cwwd 21-Kagel Canyon
 736 0 9.0 mi
Santa Monica-City, Water Division
Santa Monica		 90,729 0 10.8 mi
Glendale-City, Water Dept.
Glendale		 192,212 0 12.2 mi
Gswc Culver City
Santa Fe Springs		 38,233 0 12.5 mi
Crescenta Valley Cwd
 28,162 0 13.0 mi
Cal/am Water Company Baldwin Hills
 20,724 0 14.1 mi
LA Canada Irrigation Dist.
 9,258 0 14.4 mi
Valhalla Water Association
 25 1 15.1 mi
Valley Water Co.
 10,113 0 15.2 mi
Liberty Utilities Mesa Crest
 1,616 0 15.9 mi
Los Angeles Cwwd 29 & 80-Malibu
 31,316 0 16.1 mi
Inglewood City, Water Dept.
Inglewood		 81,191 0 16.4 mi
Foothill Municipal Water Dist.
 0 2 16.5 mi
Las Virgenes Mwd
 77,562 0 17.4 mi
Lincoln Avenue Water Co.
 8,721 0 17.6 mi
City of South Pasadena
South Pasadena		 25,329 0 17.9 mi
EL Segundo-City, Water Dept.
El Segundo		 16,777 0 18.4 mi
Rivers End Trailer Park
 35 2 18.5 mi
Vernon-City, Water Dept.
Vernon		 28,112 0 18.6 mi
Pasadena Water and Power
Pasadena		 165,448 0 18.7 mi
Las Flores Water Co.
 2,211 0 18.7 mi
Santa Clarita Valley Water Agency
 292,014 0 18.8 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
Angeles Shooting Ranges
 490 0 0
Rancho Ybarra Christian Camp
 73 0 0
Young-Nak Presbyterian Church
 25 0 0
Millard Canyon Improvement Association
 42 1 0
Clear Creek Outdoor Education Center
 105 0 0
Acton Conservation Camp #11
 90 4 0
Usfs-Red Box Station A-3
 25 0 0
Acton la North KOA
 400 0 0
Colby Ranch-United Methodist Camp
 180 0 0
Henninger Flats
 50 0 0
Texas Canyon Ranger Station
 30 0 0
Ilead Agua Dulce Charter School
 450 1 1
Vasquez Rocks County Park
 30 0 0
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-Monte Cristo Camp T-4
 116 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
Plant Water Well Rockview Dairy
South Gate 		45 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
LE Chene Restaurant Water System
 100 0 0
Rancho los Amigos Hospital
 3,200 0 0
Usfs-Chantry Flats-A16 Water
 113 0 0
Agua Dulce Winery
 113 0 0
Acton Four Square Church
 50 0 0
Shepherd of the Hills
 80 0 0
Living Springs Church
 50 0 0
Acton-Agua Dulce Lds Church
 150 0 0
Martin Marietta Southern Calif Aggregate
 51 0 0
Anchor Retreat Center
 202 0 0
Angeles Crest Christian Camp
 112 1 0
Los Angeles, City of Castaic Pwr Plant
 55 0 0
Irwindale Brewery Yard (iby)
 300 0 0
Usfs-Chilao Main A-9
 50 0 0
Camp Verdugo Oaks Boyscouts
 1,500 0 0
Hughes-Elizabeth Lake Unified School Dis
 550 2 1
Coldbrook Campground
 38 0 0
Lockheed Martin Skunk Works
 135 0 0
Los Angeles World Airports
 180 0 0
Desert Aire Golf Course
 80 0 0
Dwr. Vista del Lago Visitor Ctr,vaquerro
 135 0 0
Usfs-Crystal Lake B-13 Water
 2,000 0 0
Saint Andrews Abbey
 210 1 1
Mira Loma High Desert Hospital
 500 0 0
Del Sur School/westside Union District
 825 1 0
Northrop Grumman Corp.
 5,764 1 0
Antelope Valley Poppy Reserve State Park
 25,007 0 0
Usfs-Valyermo Ranger Station
 25 1 1
Usfs-Pyramid Lake S-14
 30 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.