Tapcensus

Water quality for ZIP code 91732

ZIP 91732 covers El Monte and Industry in 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

San Gabriel Valley Water Co.-El Monte CA1910039 · Community water system · Ground water
Serves 240,000 people Rules violated, past 3 years 0 Last sanitary survey Aug 14, 2024 Distance 2.9 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
Sterling Mutual Water Company
 198 2 0.4 mi
EL Monte-City, Water Dept.
El Monte		 23,000 0 1.4 mi
Hemlock Mutual Water Co.
 686 2 1.6 mi
Del Rio Mutual
 700 1 1.8 mi
Gswc-South Arcadia
 27,430 0 2.3 mi
Valley View Mutual Water Co.
 4,613 0 2.4 mi
Valley County Water Dist.
 68,871 0 3.7 mi
Amarillo Mutual Water Company
 3,134 0 3.7 mi
City of Industry Waterworks Systems
La Puente		 6,151 0 4.0 mi
Sunny Slope Water Co.
 25,252 1 4.4 mi
City of Arcadia
Arcadia		 54,236 0 4.5 mi
Cal-Am Water Company East Pasadena
 9,963 0 4.5 mi
Cal/am Water Company San Marino
 48,065 0 4.7 mi
San Gabriel County WD
 40,154 0 4.7 mi
Gswc-South San Gabriel
 26,451 0 4.8 mi
Cal-Am Water Company Duarte
 24,767 0 5.2 mi
LA Puente Valley Cwd
 8,276 0 5.2 mi
San Gabriel Valley Water Co-Montebello 1
 5,205 0 5.3 mi
Suburban Water Systems-San Jose
 170,523 0 5.7 mi
Whittier-City, Water Dept.
Whittier		 49,954 0 6.4 mi
Monrovia-City, Water Dept.
Monrovia		 37,931 0 6.6 mi
Azusa Light and Water
 110,044 0 6.6 mi
Pico Rivera City, Water Dept.
Pico Rivera		 39,451 0 6.7 mi
Montebello Land & Water Co.
 26,554 1 6.8 mi
Pico WD
 22,051 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
Martin Marietta Southern Calif Aggregate
 51 0 0
Irwindale Brewery Yard (iby)
 300 0 0
Usfs-Chantry Flats-A16 Water
 113 0 0
Henninger Flats
 50 0 0
Usfs-Skyline Park / Mount Wilson A-4
 25 0 0
Young-Nak Presbyterian Church
 25 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
Usfs-Red Box Station A-3
 25 0 0
Clear Creek Outdoor Education Center
 105 0 0
Colby Ranch-United Methodist Camp
 180 0 0
Coldbrook Campground
 38 0 0
Angeles Crest Christian Camp
 112 1 0
Usfs-Chilao Main A-9
 50 0 0
Usfs-Monte Cristo Camp T-4
 116 0 0
Usfs-Crystal Lake B-13 Water
 2,000 0 0
Rancho Ybarra Christian Camp
 73 0 0
Huttopia Paradise Springs
 302 1 0
Angeles Shooting Ranges
 490 0 0
Saint Andrews Abbey
 210 1 1
Camp Elk
 121 0 0
Usfs-Valyermo Ranger Station
 25 1 1
Usfs-Jackson Lake V-4
 805 0 0
Usfs-Appletree Flats V-3
 25 0 0
Mountain High East Ski Area
 150 0 0
1000 Trails / Soledad Canyon Preserve
 812 1 0
Mount Kare Camp/kare Youth League
 59 0 0
Usfs-Big Pines V-2
 54 0 0
Acton la North KOA
 400 0 0
Acton Four Square Church
 50 0 0
Acton-Agua Dulce Lds Church
 150 0 0
Acton Conservation Camp #11
 90 4 0
Vasquez Rocks County Park
 30 0 0
Ilead Agua Dulce Charter School
 450 1 1
Agua Dulce Women's Club
 50 0 0
Lang Ranch Shopping Center
 28 0 0
Wagon Wheel Plaza
 55 1 0
Agua Dulce Water System
 493 0 0
Agua Dulce Winery
 113 0 0
Shepherd of the Hills
 80 0 0
Living Springs Church
 50 0 0
LE Chene Restaurant Water System
 100 0 0
Desert Aire Golf Course
 80 0 0
Los Angeles World Airports
 180 0 0
Lockheed Martin Skunk Works
 135 0 0
Texas Canyon Ranger Station
 30 0 0
General Atomics Aeronautical Gray Butt
 405 0 0
Northrop Grumman Corp.
 5,764 1 0
Anchor Retreat Center
 202 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.