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EWG's Tap Water Database — 2021 UPDATE

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Dibromomethane

Status: No national drinking water standard exists

 

Dibromomethane is an industrial chemical and is also formed when disinfectants like chlorine are added to drinking water.

2017-2019:

FOUND

17

states detected

147

utilities detected

1.7 million

people served

Health concerns for dibromomethane

Harm to the central nervous system

Harm to the liver

Harm to the kidney

Change to blood cells

States reporting dibromomethane in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Texas68972,231
California13269,290
Massachusetts7124,082
New York2084,385
Alabama876,600
Wisconsin646,841
Kansas139,321
Georgia328,428
Ohio423,624
Arkansas1016,391
New Hampshire114,000
Virginia17,872
West Virginia1863
Iowa1353
New Jersey183
Montana173
Missouri130
MORE
LESS

Filtering technologies that reduce dibromomethane

Activated Carbon

Reverse Osmosis

Utilities with the highest amounts of dibromomethane, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Mcdowell County Psd BerwindWelch, WV1 of 15.31 ppb863
Naval Support Facility, Indian HeadIndian Head, MD1 of 14.60 ppb3,321
Hartland ColonyHavre, MT1 of 23.30 ppb73
MaukaFort Worth, TX2 of 71.96 ppb1,020
Thousand Oaks Water DepartmentThousand Oaks, CA26 of 471.54 ppb50,000
California Water Service Company - WestlakeSan Jose, CA26 of 471.54 ppb19,451
Ventura County Waterworks District No. 17 - Bell CanyonMoorpark, CA26 of 471.54 ppb2,049
Solano Verde Mutual Water CompanyCamarillo, CA26 of 471.54 ppb100
Cal American Water CompanyNewbury Park, CA26 of 471.54 ppb61,206
Oak Park Water ServiceVentura, CA26 of 471.54 ppb12,200
Calleguas Municipal Water District*Thousand Oaks, CA26 of 471.54 ppb0
Lake Sherwood Community Services DistrictMoorpark, CA26 of 471.54 ppb1,527
Cal American Water Company - Las Posas EstatesNewbury Park, CA26 of 471.54 ppb1,800
Tuskegee Utilities Board*Tuskegee, AL2 of 71.46 ppb12,510
Gulf Stream Manor Water SystemLake Charles, LA2 of 41.40 ppb1,500
Country View ApartmentsPembroke, ME1 of 11.30 ppb40
City of MilesMiles, TX5 of 91.24 ppb870
Huttig WaterworksHuttig, AR1 of 111.23 ppb733
Lomira WaterworksLomira, WI6 of 70.907 ppb2,461
Salem Water DepartmentSalem, MA1 of 10.870 ppb42,869
Beverly Water DepartmentBeverly, MA1 of 10.870 ppb43,316
Salem Beverly Water Supply Board*Beverly, MA1 of 10.870 ppb0
Galveston County WCID 1Dickinson, TX9 of 210.848 ppb29,280
Matagorda Dunes SubdivisionAustin, TX3 of 70.843 ppb426
Naval Support Facility, DahlgrenDahlgren, VA1 of 10.780 ppb7,872
Williams Water SupplyWilliams, IA4 of 40.725 ppb353
City of RochesterRochester, TX1 of 60.705 ppb250
West Monroe Water SystemWest Monroe, LA4 of 120.672 ppb15,930
Village of Surfside BeachFreeport, TX4 of 180.661 ppb3,477
Commodore Cove Improvement DistrictFreeport, TX2 of 60.633 ppb495
Forest Junction Pub UtilForest Junction, WI4 of 40.613 ppb320
Northgate Mobile Home Park 1Odessa, TX5 of 110.608 ppb126
Carlisle City Public Water SystemCarlisle, OH1 of 70.566 ppb4,897
Franklin Public Water System*Franklin, OH1 of 70.566 ppb11,396
Ausable Heights Water SystemKeeseville, NY1 of 10.500 ppb46
New London WaterStrong, AR1 of 80.486 ppb802
Hurley WaterworksHurley, WI4 of 40.468 ppb1,515
Holland Tn Sanitary DistrictTown Of Holland, WI1 of 10.460 ppb495
Red Creek Municipal Utility DistrictSan Angelo, TX1 of 30.450 ppb915
Marianna*Marianna, AR1 of 20.425 ppb3,794
Lee County Water*Marianna, AR1 of 20.425 ppb4,813
Kirkmont Municipal Utility District*Houston, TX2 of 60.417 ppb2,283
Trinity Rural Water Supply Corporation 3Trinity, TX2 of 60.403 ppb1,219
Twin Buttes Water SystemSan Angelo, TX1 of 30.400 ppb35
Bell WaterNew Waverly, TX3 of 50.394 ppb59
Glenerie Water DistrictLake Katrine, NY3 of 110.386 ppb410
Ulster Water District*Lake Katrine, NY3 of 110.386 ppb6,190
Cherry Hill Water District*Lake Katrine, NY3 of 110.386 ppb280
ShellmanShellman, GA1 of 30.373 ppb1,084
Town of QuintanaQuintana, TX1 of 50.360 ppb231

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dibromomethane, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Oak Park Water ServiceVentura, CA26 of 471.54 ppb12,200
Cal American Water CompanyNewbury Park, CA26 of 471.54 ppb61,206
Thousand Oaks Water DepartmentThousand Oaks, CA26 of 471.54 ppb50,000
California Water Service Company - WestlakeSan Jose, CA26 of 471.54 ppb19,451
Tuskegee Utilities Board*Tuskegee, AL2 of 71.46 ppb12,510
Salem Water DepartmentSalem, MA1 of 10.870 ppb42,869
Beverly Water DepartmentBeverly, MA1 of 10.870 ppb43,316
Galveston County WCID 1Dickinson, TX9 of 210.848 ppb29,280
West Monroe Water SystemWest Monroe, LA4 of 120.672 ppb15,930
Franklin Public Water System*Franklin, OH1 of 70.566 ppb11,396
PerryPerry, GA1 of 40.300 ppb28,132
Saratoga Springs City*Saratoga Springs, NY4 of 140.244 ppb35,900
California Water Service - Bear GulchSan Jose, CA2 of 80.228 ppb58,432
Danvers Water Department*Middleton, MA1 of 170.137 ppb26,493
Lake Cities Municipal Utility AuthorityLake Dallas, TX1 of 50.126 ppb16,533
Town of Discovery BayDiscovery Bay, CA1 of 50.120 ppb13,500
Laguna Madre Water DistrictPort Isabel, TX1 of 110.109 ppb19,908
Atlantic City Municipal Utilities AuthorityAtlantic City, NJ3 of 220.109 ppb152,415
City of Denison*Denison, TX1 of 100.108 ppb22,682
City of LiberalLiberal, KS1 of 90.103 ppb39,321
Hanover Water DepartmentHanover, MA1 of 150.0867 ppb14,899
Opelika Utilities*Opelika, AL1 of 80.0788 ppb43,263
Wellborn SUDWellborn, TX1 of 280.0786 ppb25,677
DCWA KnightsvilleSummerville, SC1 of 90.0689 ppb23,513
Fond Du Lac WaterworksFond Du Lac, WI4 of 340.0629 ppb42,000
Lackland Air Force BaseJbsa Lackland, TX1 of 230.0609 ppb20,907
City of CrowleyCrowley, TX1 of 180.0478 ppb14,800
City of TracyTracy, CA3 of 420.0462 ppb82,000
Elsinore Valley Municipal Water District*Lake Elsinore, CA1 of 520.0365 ppb142,264
City of Granbury*Granbury, TX3 of 720.0300 ppb11,300
Chatham Water DepartmentChatham, MA1 of 180.0294 ppb30,000
Camp Pendleton (North)Camp Pendleton, CA3 of 900.0293 ppb15,600
Plainview Municipal Water SystemPlainview, TX2 of 490.0269 ppb20,767
Seabrook Water DepartmentSeabrook, NH1 of 310.0258 ppb14,000
Oxnard Water Department*Oxnard, CA1 of 340.0226 ppb200,855
Swansea Water DistrictSwansea, MA1 of 340.0206 ppb17,358
Pennsville Twsp. Water Depart.Pennsville, NJ3 of 250.0192 ppb13,500
Wallingford Water DepartmentWallingford, CT1 of 350.0143 ppb37,267
Glassboro Water Department*Glassboro, NJ1 of 100.0110 ppb24,244
Shrewsbury Water DepartmentShrewsbury, MA1 of 580.0109 ppb35,608
El Paso Water Utilities*El Paso, TX1 of 1260.00444 ppb672,538
Lower Valley Water DistrictClint, TX1 of 1260.00444 ppb53,865
East Biggs Water SystemSan Dimas, TX1 of 1260.00444 ppb15,000
WA of Great Neck NorthGreat Neck, NY1 of 8720.00356 ppb31,400
Town of Hempstead Water DepartmentEast Meadow, NY1 of 1,3860.000851 ppb110,000

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dibromomethane, but it likely has the contaminant in its water supply.