Tapcensus

Water quality in Topanga, California

Topanga 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 29 & 80-Malibu CA1910204 · Community water system · Surface water purchased
Serves 31,316 people Rules violated, past 3 years 0 Last sanitary survey Jul 22, 2024 Distance 6.1 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
Las Virgenes Mwd
 77,562 0 8.4 mi
Santa Monica-City, Water Division
Santa Monica		 90,729 0 8.7 mi
Los Angeles-City, Dept. of Water & Power
Los Angeles		 3,875,566 0 11.4 mi
Beverly Hills-City, Water Dept.
Beverly Hills		 39,922 0 11.8 mi
Gswc Culver City
Santa Fe Springs		 38,233 0 13.6 mi
Cal/am Water Company Baldwin Hills
 20,724 0 15.9 mi
San Fernando-City, Water Dept.
San Fernando		 23,364 0 16.4 mi
EL Segundo-City, Water Dept.
El Segundo		 16,777 0 17.1 mi
Burbank-City, Water Dept.
Burbank		 106,146 0 17.3 mi
Inglewood City, Water Dept.
Inglewood		 81,191 0 17.6 mi
Manhattan Beach-City, Water Dept.
Manhattan Beach		 34,051 0 18.7 mi
Los Angeles Cwwd 21-Kagel Canyon
 736 0 18.7 mi
Hawthorne-City Water Dept.
Hawthorne		 46,039 0 19.3 mi
California Water Service Co. Herm/redo
 100,072 0 21.2 mi
Gswc Southwest
 277,740 0 21.2 mi
Glendale-City, Water Dept.
Glendale		 192,212 0 21.3 mi
Gswc Florence/graham
 63,472 0 22.5 mi
Crescenta Valley Cwd
 28,162 0 22.9 mi
Vernon-City, Water Dept.
Vernon		 28,112 0 23.4 mi
Huntington Park-City, Water Dept.
Huntington Park		 15,437 0 23.7 mi
Walnut Park Mutual Water Co.
 16,180 1 23.8 mi
Torrance-City, Water Dept.
Torrance		 106,183 0 23.8 mi
Santa Clarita Valley Water Agency
 292,014 0 23.8 mi
LA Canada Irrigation Dist.
 9,258 0 24.0 mi
Liberty Utilities Compton
 26,316 0 24.1 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
Young-Nak Presbyterian Church
 25 0 0
Rancho Ybarra Christian Camp
 73 0 0
Plant Water Well Rockview Dairy
South Gate 		45 0 0
Millard Canyon Improvement Association
 42 1 0
Rancho los Amigos Hospital
 3,200 0 0
Clear Creek Outdoor Education Center
 105 0 0
Texas Canyon Ranger Station
 30 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
Henninger Flats
 50 0 0
Ilead Agua Dulce Charter School
 450 1 1
Colby Ranch-United Methodist Camp
 180 0 0
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
LE Chene Restaurant Water System
 100 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
Usfs-Chantry Flats-A16 Water
 113 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
Usfs-Monte Cristo Camp T-4
 116 0 0
Shepherd of the Hills
 80 0 0
Agua Dulce Winery
 113 0 0
Living Springs Church
 50 0 0
Los Angeles, City of Castaic Pwr Plant
 55 0 0
Acton Four Square Church
 50 0 0
Acton-Agua Dulce Lds Church
 150 0 0
Camp Verdugo Oaks Boyscouts
 1,500 0 0
Martin Marietta Southern Calif Aggregate
 51 0 0
Anchor Retreat Center
 202 0 0
Irwindale Brewery Yard (iby)
 300 0 0
Dwr. Vista del Lago Visitor Ctr,vaquerro
 135 0 0
Angeles Crest Christian Camp
 112 1 0
Usfs-Chilao Main A-9
 50 0 0
Hughes-Elizabeth Lake Unified School Dis
 550 2 1
Usfs-Pyramid Lake S-14
 30 0 0
Usfs-Los Alamos S-15
 25 0 0
Pyramid Lake RV Resort
 26 1 0
Coldbrook Campground
 38 0 0
Lockheed Martin Skunk Works
 135 0 0
Antelope Valley Poppy Reserve State Park
 25,007 0 0
Quail Canyon Sea
 130 0 0
Los Angeles World Airports
 180 0 0
Del Sur School/westside Union District
 825 1 0
Desert Aire Golf Course
 80 0 0
Mira Loma High Desert Hospital
 500 0 0
Usfs-Crystal Lake B-13 Water
 2,000 0 0
All non-community systems
About this data

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