Tapcensus

Water quality in Lancaster, California

Lancaster is in Los Angeles 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 4 & 34 Lancaster CA1910070 · Community water system · Surface water purchased
Serves 208,129 people Rules violated, past 3 years 0 Last sanitary survey Dec 2, 2024 Distance 5.9 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
EL Rancho Mobile Home Park
 215 0 2.0 mi
Tierra Bonita Mutual Water
 75 1 2.1 mi
Landale Mutual Water Company
 90 0 2.8 mi
Californian Mobile Home Park
 414 0 2.8 mi
Evergreen Mutual Water Company
 98 0 2.9 mi
Western Skies Mobile Home Park
 198 1 2.9 mi
Desert Palms Mobile Home Park
 140 1 3.1 mi
Sherwood Mobile Home Park
 540 0 3.1 mi
Golden Sands Mobile Home Park
 450 1 3.2 mi
Clear Skies Mobile Home Park
 131 0 3.3 mi
Averydale Mwc
 1,026 1 3.3 mi
Terra Nova Mobile Home Park
 140 0 3.4 mi
Antelope Park Mutual Water Company
 445 0 5.2 mi
California Water Service Co.-Lancaster
 1,416 0 5.4 mi
EL Dorado Mutual Water Co.
 660 0 5.5 mi
Lancaster Water Company
 80 1 5.7 mi
Colorado Mutual Water Company
 37 1 5.7 mi
White Fence Farms Mwc No. 1
 1,518 0 5.7 mi
White Fence Farms Mwc No.3
 749 0 5.7 mi
Reesedale Mutual Water Company
 76 1 5.9 mi
Westside Park Mutual Water
 495 0 6.0 mi
The Village Mobile Home Park
 71 2 6.1 mi
Aqua J. Mutual Water Company
 158 0 6.4 mi
Lancaster Park Mobile Home Park
 50 1 6.7 mi
Shadow Acres Mutual Water Company
 450 0 6.8 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
Lancaster National Soccer Center
Lancaster 		500 0 0
Northrop Grumman Corp.
 5,764 1 0
Los Angeles World Airports
 180 0 0
Lockheed Martin Skunk Works
 135 0 0
Desert Aire Golf Course
 80 0 0
Eastside Union School District
 650 1 1
TN Truss
 35 1 0
Mira Loma High Desert Hospital
 500 0 0
Antelope Valley Indian Museum State Park
 506 0 0
Del Sur School/westside Union District
 825 1 0
Acton-Agua Dulce Lds Church
 150 0 0
Acton Four Square Church
 50 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
Anchor Retreat Center
 202 0 0
Agua Dulce Winery
 113 0 0
Living Springs Church
 50 0 0
Shepherd of the Hills
 80 0 0
Saint Andrews Abbey
 210 1 1
Antelope Valley Poppy Reserve State Park
 25,007 0 0
Lang Ranch Shopping Center
 28 0 0
Agua Dulce Water System
 493 0 0
Vasquez Rocks County Park
 30 0 0
Wagon Wheel Plaza
 55 1 0
Agua Dulce Women's Club
 50 0 0
Ilead Agua Dulce Charter School
 450 1 1
Acton la North KOA
 400 0 0
LE Chene Restaurant Water System
 100 0 0
Acton Conservation Camp #11
 90 4 0
Usfs-Valyermo Ranger Station
 25 1 1
Hughes-Elizabeth Lake Unified School Dis
 550 2 1
Usfs-Monte Cristo Camp T-4
 116 0 0
Angeles Crest Christian Camp
 112 1 0
Usfs-Chilao Main A-9
 50 0 0
General Atomics Aeronautical Gray Butt
 405 0 0
Huttopia Paradise Springs
 302 1 0
Texas Canyon Ranger Station
 30 0 0
Colby Ranch-United Methodist Camp
 180 0 0
Camp Elk
 121 0 0
Rancho Ybarra Christian Camp
 73 0 0
Usfs-Jackson Lake V-4
 805 0 0
Clear Creek Outdoor Education Center
 105 0 0
Usfs-Appletree Flats V-3
 25 0 0
Usfs-Crystal Lake B-13 Water
 2,000 0 0
Coldbrook Campground
 38 0 0
Usfs-Red Box Station A-3
 25 0 0
Mountain High East Ski Area
 150 0 0
Angeles Shooting Ranges
 490 0 0
Mount Kare Camp/kare Youth League
 59 0 0
Usfs-Big Pines V-2
 54 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
All non-community systems
About this data

Water systems are matched to Los Angeles County, nearest to Lancaster 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.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 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.