Tapcensus

Water quality in Castaic, California

Castaic 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 36-Val Verde CA1910185 · Community water system · Surface water purchased
Serves 6,712 people Rules violated, past 3 years 0 Last sanitary survey Dec 3, 2025 Distance 2.3 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
Peter Pitchess Honor Rancho Detn. Ctr
 7,000 0 2.0 mi
Santa Clarita Valley Water Agency
 292,014 0 4.8 mi
Paradise Ranch MHP
 360 0 7.7 mi
Lily of the Valley Mobile Village
 657 0 8.3 mi
Los Angeles Residential Community Founda
 184 1 9.1 mi
Los Angeles, City of Power Plant #1
Saugus		 10 0 12.3 mi
Los Angeles, City of Power Plant #2
Saugus		 28 0 12.8 mi
Sleepy Valley Water Company
 160 0 15.0 mi
Rivers End Trailer Park
 35 2 15.3 mi
Oak Grove Mobile Home Park
 109 1 15.4 mi
Green Valley Cwd
 1,275 1 15.9 mi
North Trails Mutual Water Company
 100 3 16.5 mi
San Fernando-City, Water Dept.
San Fernando		 23,364 0 17.0 mi
California Water Service Co-Lake Hughes
 732 0 17.1 mi
The Painted Turtle Camp
 57 1 17.3 mi
Cali Lake RV Resort
 99 0 17.6 mi
Casa Dulce Estates
 26 0 18.0 mi
Bleich Flats Mutual
 36 0 18.4 mi
Spv Water Company
 211 0 18.5 mi
Los Angeles Cwwd 21-Kagel Canyon
 736 0 19.3 mi
Lake Elizabeth Mutual Water Co.
 1,790 0 19.7 mi
California Water Service Co-Leona Valley
 895 0 20.8 mi
Mettler Valley Mutual
 160 1 21.3 mi
West Valley County Water District
 798 0 21.5 mi
Winterhaven Mobile Estates
 56 2 22.6 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
Los Angeles, City of Castaic Pwr Plant
 55 0 0
Texas Canyon Ranger Station
 30 0 0
Camp Verdugo Oaks Boyscouts
 1,500 0 0
Dwr. Vista del Lago Visitor Ctr,vaquerro
 135 0 0
LE Chene Restaurant Water System
 100 0 0
Ilead Agua Dulce Charter School
 450 1 1
Agua Dulce Women's Club
 50 0 0
Wagon Wheel Plaza
 55 1 0
Agua Dulce Water System
 493 0 0
Usfs-Pyramid Lake S-14
 30 0 0
Lang Ranch Shopping Center
 28 0 0
Anchor Retreat Center
 202 0 0
Vasquez Rocks County Park
 30 0 0
Hughes-Elizabeth Lake Unified School Dis
 550 2 1
Shepherd of the Hills
 80 0 0
Living Springs Church
 50 0 0
Agua Dulce Winery
 113 0 0
Angeles Shooting Ranges
 490 0 0
Acton Conservation Camp #11
 90 4 0
Pyramid Lake RV Resort
 26 1 0
Usfs-Los Alamos S-15
 25 0 0
Acton la North KOA
 400 0 0
Quail Canyon Sea
 130 0 0
Antelope Valley Poppy Reserve State Park
 25,007 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
Acton Four Square Church
 50 0 0
Acton-Agua Dulce Lds Church
 150 0 0
Rancho Ybarra Christian Camp
 73 0 0
Del Sur School/westside Union District
 825 1 0
Mira Loma High Desert Hospital
 500 0 0
Clear Creek Outdoor Education Center
 105 0 0
Lockheed Martin Skunk Works
 135 0 0
Usfs-Monte Cristo Camp T-4
 116 0 0
Colby Ranch-United Methodist Camp
 180 0 0
Los Angeles World Airports
 180 0 0
Millard Canyon Improvement Association
 42 1 0
TN Truss
 35 1 0
Desert Aire Golf Course
 80 0 0
Northrop Grumman Corp.
 5,764 1 0
Usfs-Red Box Station A-3
 25 0 0
Lancaster National Soccer Center
Lancaster 		500 0 0
Young-Nak Presbyterian Church
 25 0 0
Henninger Flats
 50 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
Angeles Crest Christian Camp
 112 1 0
Usfs-Chantry Flats-A16 Water
 113 0 0
Usfs-Chilao Main A-9
 50 0 0
Eastside Union School District
 650 1 1
Saint Andrews Abbey
 210 1 1
Usfs-Valyermo Ranger Station
 25 1 1
All non-community systems
About this data

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