Lead Pipe Map

California · 144 community water systems

Lead pipes in Los Angeles County, CA

144 community water systems serving Los Angeles County reported 0 lead and 750 galvanized-requiring-replacement service lines, plus 126,291 of unknown material. The most are in Norwalk - City, Water Dept..

<0.1% of these systems' lines are lead or galvanized requiring replacement, lower than the California average (0.1%) and lower than the national average (3.1%).

0Lead
750Galvanized, replace
126,291Unknown
1,992,336Non-lead

Water systems serving Los Angeles County

Water systemLeadGalv.Unknown% leadPeople
Norwalk - City, Water Dept.Norwalk0551339.7%20,283
El Segundo-City, Water Dept.El Segundo01451792.9%16,777
Golden Sands Mobile Home ParkLos Angeles County016011%450
Lynwood-City, Water Dept.Lynwood012510.1%66,967
Colorado Mutual Water CompanyLos Angeles County08062%37
Wilsona Gardens MutualLos Angeles County073716%136
Aqua J. Mutual Water CompanyLos Angeles County05010%158
Fenner Canyon Youth Conservation CampLos Angeles County05056%95
La Canada Irrigation Dist.Los Angeles County0151<0.1%9,258
California Water Service Co. - DominguezLos Angeles County0031,8690%149,490
California Water Service Co. - ElaLos Angeles County0026,8740%142,140
California Water Service Co. - Herm/RedoLos Angeles County0024,3550%100,072
California Water Service Co. - Palos VerLos Angeles County0023,5000%70,830
Monterey Park-City, Water Dept.Monterey Park0012,1780%61,096
Lincoln Avenue Water Co.Los Angeles County003,0750%8,721
Sunny Slope Water Co.Los Angeles County001,5780%25,252
Commerce-City, Water Dept.Montebello001,1910%3,598
California Water Service Co.-LancasterLos Angeles County005790%1,416
California Water Service Co-Leona ValleyLos Angeles County003900%895
California Water Service Co-Lake HughesLos Angeles County002140%732
Landale Mutual Water CompanyLos Angeles County00330%90
Lancaster Water CompanyLos Angeles County00240%80
Reesedale Mutual Water CompanyLos Angeles County00240%76
Golden Valley Municipal Water DistrictLos Angeles County00210%70
Blue Skies Mobile Home ParkLos Angeles County00210%56
California Conservation Camp #14Los Angeles County00120%107
Fire Suppression Camp #19Los Angeles County0020%125
Los Angeles-City, Dept. of Water & PowerLos Angeles0000%3,875,566
Long Beach Utilities DepartmentLong Beach0000%466,772
Santa Clarita Valley Water AgencyLos Angeles County0000%292,014
GSWC - SouthwestLos Angeles County0000%277,740
San Gabriel Valley Water Co.-El MonteLos Angeles County0000%240,000
Los Angeles CWWD 40 Reg 4 & 34 LancasterLos Angeles County0000%208,129
Glendale-City, Water Dept.Glendale0000%192,212
Suburban Water Systems-San JoseLos Angeles County0000%170,523
Pasadena Water and PowerPasadena0000%165,448
Pomona - City, Water Dept.Pomona0000%151,713
Palmdale Water Dist.Los Angeles County0000%126,804
Downey - City, Water Dept.Downey0000%110,556
Azusa Light and WaterLos Angeles County0000%110,044
Torrance-City, Water Dept.Torrance0000%106,183
Burbank-City, Water Dept.Burbank0000%106,146
Walnut Valley Water DistrictLos Angeles County0000%100,941
Compton-City, Water Dept.Compton0000%90,986
Santa Monica-City, Water DivisionSanta Monica0000%90,729
South Gate-City, Water Dept.South Gate0000%88,544
Inglewood- City, Water Dept.Inglewood0000%81,191
City of AlhambraAlhambra0000%80,279
Las Virgenes MWDLos Angeles County0000%77,562
Liberty Utilities - Bellflower-NorwalkLos Angeles County0000%72,472
Valley County Water Dist.Los Angeles County0000%68,871
Suburban Water Systems-WhittierLos Angeles County0000%66,565
Lakewood - City, Water Dept.Lakewood0000%66,356
GSWC - Florence/GrahamLos Angeles County0000%63,472
Suburban Water Systems-La MiradaLos Angeles County0000%57,240
Gswc-San DimasLos Angeles County0000%56,564
Rowland Water DistrictLos Angeles County0000%56,100
Paramount - City, Water Dept.Paramount0000%55,200
GSWC - Bell, Bell GardensLos Angeles County0000%55,050
City of ArcadiaArcadia0000%54,236
GSWC - ArtesiaLos Angeles County0000%50,415
Whittier-City, Water Dept.Whittier0000%49,954
Cal/Am Water Company - San MarinoLos Angeles County0000%48,065
Cerritos - City, Water Dept.Cerritos0000%46,851
Bellflower - Somerset MWCLos Angeles County0000%46,300
Hawthorne-City Water Dept.Hawthorne0000%46,039
Glendora-City, Water Dept.Glendora0000%44,411
GSWC - NorwalkLos Angeles County0000%43,167
San Gabriel County WDLos Angeles County0000%40,154
Beverly Hills-City, Water Dept.Beverly Hills0000%39,922
GSWC - ClaremontLos Angeles County0000%39,776
Pico Rivera - City, Water Dept.Pico Rivera0000%39,451
GSWC - Culver CitySanta Fe Springs0000%38,233
Monrovia-City, Water Dept.Monrovia0000%37,931
Manhattan Beach-City, Water Dept.Manhattan Beach0000%34,051
Covina-City, Water Dept.Covina0000%33,300
La Verne, City WDLa Verne0000%31,334
Los Angeles CWWD 29 & 80-MalibuLos Angeles County0000%31,316
Crescenta Valley CWDLos Angeles County0000%28,162
Vernon-City, Water Dept.Vernon0000%28,112
Gswc-South ArcadiaLos Angeles County0000%27,430
Montebello Land & Water Co.Los Angeles County0000%26,554
Gswc-South San GabrielLos Angeles County0000%26,451
Liberty Utilities - ComptonLos Angeles County0000%26,316
City of South PasadenaSouth Pasadena0000%25,329
Orchard Dale Water DistrictLos Angeles County0000%25,000
Cal-Am Water Company - DuarteLos Angeles County0000%24,767
Liberty Utilities - LynwoodLos Angeles County0000%24,649
San Fernando-City, Water Dept.San Fernando0000%23,364
El Monte-City, Water Dept.El Monte0000%23,000
Pico WDLos Angeles County0000%22,051
Cal/Am Water Company - Baldwin HillsLos Angeles County0000%20,724
Lomita-City, Water Dept.Lomita0000%20,256
Quartz Hill Water Dist.Los Angeles County0000%19,322
Santa Fe Springs - City, Water Dept.Santa Fe Springs0000%19,219
Walnut Park Mutual Water Co.Los Angeles County0000%16,180
Huntington Park-City, Water Dept.Huntington Park0000%15,437
South Montebello Irrigation Dist.Los Angeles County0000%15,021
Tract 180 Mutual Water Co.Los Angeles County0000%14,000
Los Angeles CWWD 40, Reg. 38-Lake laLos Angeles County0000%12,582
Signal Hill - City, Water Dept.Signal Hill0000%11,848
Los Angeles CWWD 40, R 24,27,33-PearblsmLos Angeles County0000%11,609
City of Bell GardensBell Gardens0000%11,413
Sierra Madre-City, Water Dept.Sierra Madre0000%11,000
GSWC - WillowbrookLos Angeles County0000%10,793
Valley Water Co.Los Angeles County0000%10,113
Cal-Am Water Company - East PasadenaLos Angeles County0000%9,963
Tract 349 Mutual Water Co.Los Angeles County0000%8,700
La Puente Valley CWDLos Angeles County0000%8,276
GSWC - HollydaleLos Angeles County0000%8,099
Valencia Heights Water Co.Los Angeles County0000%7,775
Peter Pitchess Honor Rancho Detn. CTRLos Angeles County0000%7,000
Los Angeles CWWD 36-Val VerdeLos Angeles County0000%6,712
Rubio Canon Land & Water AssociationLos Angeles County0000%6,646
Maywood Mutual Water Co. #2Los Angeles County0000%6,349
City of Industry Waterworks SystemsLa Puente0000%6,151
Maywood Mutual Water Co. #3Los Angeles County0000%6,059
Bellflower Municipal Water SystemLos Angeles County0000%6,032
La Habra Heights CWDLos Angeles County0000%5,682
Palm Ranch Irrigation Dist.Los Angeles County0000%5,507
Suburban Water Systems-GlendoraLos Angeles County0000%5,301
San Gabriel Valley Water Co-Montebello 1Los Angeles County0000%5,205
Los Angeles CWWD 37-ActonLos Angeles County0000%4,782
Valley View Mutual Water Co.Los Angeles County0000%4,613
Suburban Water Systems - SativaLos Angeles County0000%4,372
Maywood Mutual Water Co. #1Los Angeles County0000%3,851
So. Cal. Edison Co.-Santa CatalinaLos Angeles County0000%3,822
San Gabriel Valley Water Co-Montebello 2Montebello0000%3,731
Amarillo Mutual Water CompanyLos Angeles County0000%3,134
Littlerock Creek Irrigation Dist.Los Angeles County0000%3,066
Land Projects Mutual Water Co.Los Angeles County0000%2,800
Calif State Polytechnical Univ - PomonaLos Angeles County0000%2,668
Las Flores Water Co.Los Angeles County0000%2,211
Kinneloa Irrigation Dist.Los Angeles County0000%1,808
Lake Elizabeth Mutual Water Co.Los Angeles County0000%1,790
Liberty Utilities - Mesa CrestLos Angeles County0000%1,616
Lynwood Park Mutual Water Co.Los Angeles County0000%1,564
White Fence Farms MWC No. 1Los Angeles County0000%1,518
Suburban Water Systems-Covina KnollsLos Angeles County0000%1,451
Green Valley CWDLos Angeles County000–1,275
Sundale Mutual Water Company A, BLos Angeles County0000%1,155
Bellflower Home Garden Water CompanyLos Angeles County0000%1,129
Los Angeles CWWD 40, Reg. 39-Rock CreekLos Angeles County0000%1,030
Averydale MWCLos Angeles County0000%1,026

Systems that also serve other counties are counted in full. Your water bill names your utility.

What to do if your line is lead or unknown

  1. Check the pipe where water enters your home.
  2. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking.
  3. Test your water, often free through the utility.
  4. Ask your utility about free or discounted replacement; most lines must be replaced by December 31, 2037.

Check another water system

Questions

Does Los Angeles County have lead pipes?

Yes. Water systems serving Los Angeles County reported 0 lead and 750 galvanized-requiring-replacement service lines, plus 126,291 of unknown material.

Which Los Angeles County water systems have the most lead lines?

Norwalk - City, Water Dept. (551), El Segundo-City, Water Dept. (145), Golden Sands Mobile Home Park (16).

How do I check my home in Los Angeles County?

Find the water system named on your water bill in the table above, open its page and use its address-level inventory. You can also scratch-test the pipe where it enters your home.