Tapcensus

Water quality in Hermosa Beach, California

Hermosa Beach 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

California Water Service Co. Herm/redo CA1910134 · Community water system · Surface water purchased
Serves 100,072 people Rules violated, past 3 years 0 Last sanitary survey May 15, 2024 Distance 1.8 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
Manhattan Beach-City, Water Dept.
Manhattan Beach		 34,051 0 1.4 mi
EL Segundo-City, Water Dept.
El Segundo		 16,777 0 3.3 mi
Hawthorne-City Water Dept.
Hawthorne		 46,039 0 4.7 mi
Torrance-City, Water Dept.
Torrance		 106,183 0 4.7 mi
Gswc Southwest
 277,740 0 5.7 mi
Inglewood City, Water Dept.
Inglewood		 81,191 0 7.2 mi
Lomita-City, Water Dept.
Lomita		 20,256 0 7.2 mi
California Water Service Co. Palos Ver
 70,830 0 7.5 mi
California Water Service Co. Dominguez
 149,490 0 8.0 mi
Cal/am Water Company Baldwin Hills
 20,724 0 8.9 mi
Liberty Utilities Compton
 26,316 0 9.1 mi
Gswc Culver City
Santa Fe Springs		 38,233 0 9.4 mi
Gswc Willowbrook
 10,793 0 10.3 mi
Suburban Water Systems Sativa
 4,372 0 10.3 mi
Compton-City, Water Dept.
Compton		 90,986 0 10.5 mi
Lynwood Park Mutual Water Co.
 1,564 1 10.8 mi
Santa Monica-City, Water Division
Santa Monica		 90,729 0 11.5 mi
Gswc Florence/graham
 63,472 0 11.5 mi
Lynwood-City, Water Dept.
Lynwood		 66,967 0 12.3 mi
Liberty Utilities Lynwood
 24,649 0 12.3 mi
Walnut Park Mutual Water Co.
 16,180 1 12.6 mi
South Gate-City, Water Dept.
South Gate		 88,544 0 13.1 mi
Huntington Park-City, Water Dept.
Huntington Park		 15,437 0 13.1 mi
Paramount City, Water Dept.
Paramount		 55,200 0 13.8 mi
Tract 349 Mutual Water Co.
 8,700 0 13.9 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
Rancho los Amigos Hospital
 3,200 0 0
Plant Water Well Rockview Dairy
South Gate 		45 0 0
Young-Nak Presbyterian Church
 25 0 0
Millard Canyon Improvement Association
 42 1 0
Martin Marietta Southern Calif Aggregate
 51 0 0
Henninger Flats
 50 0 0
Angeles Shooting Ranges
 490 0 0
Usfs-Red Box Station A-3
 25 0 0
Rancho Ybarra Christian Camp
 73 0 0
Usfs-Chantry Flats-A16 Water
 113 0 0
Clear Creek Outdoor Education Center
 105 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
Irwindale Brewery Yard (iby)
 300 0 0
Colby Ranch-United Methodist Camp
 180 0 0
Usfs-Monte Cristo Camp T-4
 116 0 0
Acton Conservation Camp #11
 90 4 0
Acton la North KOA
 400 0 0
Angeles Crest Christian Camp
 112 1 0
Usfs-Chilao Main A-9
 50 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
Ilead Agua Dulce Charter School
 450 1 1
Acton Four Square Church
 50 0 0
Vasquez Rocks County Park
 30 0 0
Coldbrook Campground
 38 0 0
Agua Dulce Women's Club
 50 0 0
Acton-Agua Dulce Lds Church
 150 0 0
Wagon Wheel Plaza
 55 1 0
Lang Ranch Shopping Center
 28 0 0
Agua Dulce Water System
 493 0 0
Texas Canyon Ranger Station
 30 0 0
LE Chene Restaurant Water System
 100 0 0
Agua Dulce Winery
 113 0 0
Shepherd of the Hills
 80 0 0
Living Springs Church
 50 0 0
Usfs-Crystal Lake B-13 Water
 2,000 0 0
Anchor Retreat Center
 202 0 0
Saint Andrews Abbey
 210 1 1
Huttopia Paradise Springs
 302 1 0
Usfs-Valyermo Ranger Station
 25 1 1
Los Angeles, City of Castaic Pwr Plant
 55 0 0
Camp Elk
 121 0 0
Usfs-Jackson Lake V-4
 805 0 0
Usfs-Appletree Flats V-3
 25 0 0
Camp Verdugo Oaks Boyscouts
 1,500 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
Lockheed Martin Skunk Works
 135 0 0
Desert Aire Golf Course
 80 0 0
Los Angeles World Airports
 180 0 0
All non-community systems
About this data

Water systems are matched to Los Angeles County, nearest to Hermosa Beach 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.