Tapcensus

Water quality for ZIP code 93553

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 Cwwd 40, Reg. 39-Rock Creek CA1910025 · Community water system · Surface water purchased
Serves 1,030 people Rules violated, past 3 years 0 Last sanitary survey Dec 10, 2024 Distance 5.4 mi
View system details EPA facility report

Other community water systems in Los Angeles County

198 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Llano del Rio Water Company
 545 1 5.7 mi
Fenner Canyon Youth Conservation Camp
 95 1 8.1 mi
Llano Mutual Water Company
 245 1 8.3 mi
Blue Skies Mobile Home Park
 56 1 9.5 mi
Littlerock Creek Irrigation Dist.
 3,066 1 9.7 mi
Little Baldy Water
 55 2 10.3 mi
Los Angeles Cwwd 40, R 24,27,33-Pearblsm
 11,609 0 10.9 mi
The River Community
 35 2 13.7 mi
Palmdale Water Dist.
 126,804 0 13.8 mi
Camp Williams-Resort Water
 80 0 13.9 mi
Alpine Springs Mobile Home Park
 175 2 14.4 mi
Los Angeles Cwwd 40, Reg. 38-Lake la
 12,582 0 15.1 mi
Los Angeles Cwwd 37-Acton
 4,782 0 16.7 mi
Monrovia-City, Water Dept.
Monrovia		 37,931 0 17.3 mi
Sierra Madre-City, Water Dept.
Sierra Madre		 11,000 0 18.3 mi
Kinneloa Irrigation Dist.
 1,808 1 18.6 mi
Wilsona Gardens Mutual
 136 3 18.7 mi
Cal-Am Water Company Duarte
 24,767 0 19.1 mi
Las Flores Water Co.
 2,211 0 19.1 mi
Glendora-City, Water Dept.
Glendora		 44,411 0 19.2 mi
Colorado Mutual Water Company
 37 1 19.2 mi
Rubio Canon Land & Water Association
 6,646 0 19.5 mi
Tierra Bonita Mutual Water
 75 1 19.5 mi
Lincoln Avenue Water Co.
 8,721 0 19.7 mi
Westside Park Mutual Water
 495 0 19.9 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
Saint Andrews Abbey
 210 1 1
Usfs-Valyermo Ranger Station
 25 1 1
Usfs-Chilao Main A-9
 50 0 0
Angeles Crest Christian Camp
 112 1 0
Huttopia Paradise Springs
 302 1 0
Usfs-Crystal Lake B-13 Water
 2,000 0 0
Camp Elk
 121 0 0
Coldbrook Campground
 38 0 0
Usfs-Jackson Lake V-4
 805 0 0
Usfs-Appletree Flats V-3
 25 0 0
Usfs-Monte Cristo Camp T-4
 116 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
Colby Ranch-United Methodist Camp
 180 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
Desert Aire Golf Course
 80 0 0
Usfs-Red Box Station A-3
 25 0 0
Usfs-Chantry Flats-A16 Water
 113 0 0
Los Angeles World Airports
 180 0 0
Acton-Agua Dulce Lds Church
 150 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
Clear Creek Outdoor Education Center
 105 0 0
Acton Four Square Church
 50 0 0
Henninger Flats
 50 0 0
General Atomics Aeronautical Gray Butt
 405 0 0
Antelope Valley Indian Museum State Park
 506 0 0
Lockheed Martin Skunk Works
 135 0 0
Millard Canyon Improvement Association
 42 1 0
Northrop Grumman Corp.
 5,764 1 0
Irwindale Brewery Yard (iby)
 300 0 0
Lancaster National Soccer Center
Lancaster 		500 0 0
Acton la North KOA
 400 0 0
Rancho Ybarra Christian Camp
 73 0 0
Martin Marietta Southern Calif Aggregate
 51 0 0
Acton Conservation Camp #11
 90 4 0
Eastside Union School District
 650 1 1
Vasquez Rocks County Park
 30 0 0
Agua Dulce Winery
 113 0 0
Living Springs Church
 50 0 0
Lang Ranch Shopping Center
 28 0 0
Shepherd of the Hills
 80 0 0
Agua Dulce Women's Club
 50 0 0
Wagon Wheel Plaza
 55 1 0
Agua Dulce Water System
 493 0 0
Ilead Agua Dulce Charter School
 450 1 1
TN Truss
 35 1 0
LE Chene Restaurant Water System
 100 0 0
Angeles Shooting Ranges
 490 0 0
Mira Loma High Desert Hospital
 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.