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EWG's Tap Water Database — 2019 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.

2015-2017:

FOUND

21

states detected

121

utilities detected

1.4 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
California15372,057
Texas57308,337
Massachusetts8189,562
New Jersey4160,926
New York5152,780
Wisconsin546,831
Connecticut137,267
Alabama728,123
Ohio423,624
Kansas121,012
Virginia17,872
Arkansas43,611
Georgia11,092
Nebraska1600
Delaware1525
Iowa1353
Nevada180
Montana173
Maine140
Washington133
Missouri130
MORE
LESS

Filtering technologies that reduce dibromomethane

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of dibromomethane, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Hartland ColonyHavre, MT1 of 16.60 ppb73
Huttig WaterworksHuttig, AR1 of 43.38 ppb777
MaukaFort Worth, TX2 of 52.74 ppb1,023
Thousand Oaks Water DepartmentThousand Oaks, CA13 of 251.67 ppb50,000
Cal American Water CompanyNewbury Park, CA13 of 251.67 ppb61,206
Oak Park Water ServiceVentura, CA13 of 251.67 ppb12,200
California Water Service Company - WestlakeSan Jose, CA13 of 251.67 ppb19,451
Calleguas Municipal Water District*Thousand Oaks, CA13 of 251.67 ppb0
Lake Sherwood Community Services DistrictMoorpark, CA13 of 251.67 ppb1,527
Cal American Water Company - Las Posas EstatesNewbury Park, CA13 of 251.67 ppb1,800
Ventura County Waterworks District No. 17 - Bell CanyonMoorpark, CA13 of 251.67 ppb2,049
Solano Verde Mutual Water CompanyCamarillo, CA13 of 251.67 ppb100
Matagorda Dunes SubdivisionAustin, TX3 of 41.48 ppb426
City of MilesMiles, TX4 of 71.43 ppb870
Country View ApartmentsBangor, ME1 of 11.30 ppb40
Northgate Mobile Home Park 1Odessa, TX4 of 60.890 ppb126
Lomira WaterworksLomira, WI3 of 40.873 ppb2,461
Beverly Water DepartmentBeverly, MA1 of 10.870 ppb43,316
Salem Beverly Water Supply Board*Beverly, MA1 of 10.870 ppb0
Salem Water DepartmentSalem, MA1 of 10.870 ppb42,869
Northfield San District 1Hixton, WI1 of 10.800 ppb50
Carlisle City Public Water SystemCarlisle, OH1 of 50.792 ppb4,897
Franklin Public Water System*Franklin, OH1 of 50.792 ppb11,396
Galveston County WCID 1Dickinson, TX5 of 120.792 ppb29,280
Naval Support Facility, DahlgrenDahlgren, VA1 of 10.780 ppb7,872
New London Water AssociationStrong, AR1 of 50.778 ppb772
City of Ballinger*Ballinger, TX2 of 30.694 ppb3,767
Rowena Water Supply CorporationRowena, TX2 of 30.694 ppb480
Trinity Rural Water Supply Corporation 3*Trinity, TX1 of 30.610 ppb1,219
Harbor PointPflugerville, TX1 of 30.610 ppb802
Williams Water SupplyWilliams, IA2 of 20.600 ppb353
Town of QuintanaQuintana, TX1 of 30.600 ppb210
ShellmanShellman, GA1 of 20.560 ppb1,092
Cherry Hill Water DistrictLake Katrine, NY3 of 80.531 ppb280
Ulster Water District*Lake Katrine, NY3 of 80.531 ppb6,190
Glenerie Water DistrictLake Katrine, NY3 of 80.531 ppb410
Clarendon WaterworksClarendon, AR1 of 10.510 ppb1,640
Georgiana Water Works and Sewer Board*Georgiana, AL1 of 20.500 ppb2,793
Jones Creek TerraceFreeport, TX1 of 30.467 ppb951
Middleton Water DepartmentMiddleton, MA1 of 50.466 ppb6,138
Danvers Water Department*Middleton, MA1 of 50.466 ppb35,480
Paxton Water Supply CorporationCenter, TX2 of 30.453 ppb790
Red Creek Municipal Utility DistrictSan Angelo, TX1 of 30.450 ppb915
Gary Water Supply CorporationGary, TX2 of 30.437 ppb966
Maverick County Airport Water WorksEagle Pass, TX1 of 30.433 ppb1,645
Saratoga Springs City*Saratoga Springs, NY4 of 80.428 ppb35,900
Kirkmont Municipal Utility District*Houston, TX2 of 60.417 ppb2,283
Bell Water SubdivisionNew Waverly, TX2 of 30.414 ppb72
Harris County Municipal Utility District 64*Houston, TX1 of 30.400 ppb6,174
Twin Buttes Water SystemSan Angelo, TX1 of 30.400 ppb26

* 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
Cal American Water CompanyNewbury Park, CA13 of 251.67 ppb61,206
Oak Park Water ServiceVentura, CA13 of 251.67 ppb12,200
California Water Service Company - WestlakeSan Jose, CA13 of 251.67 ppb19,451
Thousand Oaks Water DepartmentThousand Oaks, CA13 of 251.67 ppb50,000
Salem Water DepartmentSalem, MA1 of 10.870 ppb42,869
Beverly Water DepartmentBeverly, MA1 of 10.870 ppb43,316
Franklin Public Water System*Franklin, OH1 of 50.792 ppb11,396
Galveston County WCID 1Dickinson, TX5 of 120.792 ppb29,280
Danvers Water Department*Middleton, MA1 of 50.466 ppb35,480
Saratoga Springs City*Saratoga Springs, NY4 of 80.428 ppb35,900
Lake Cities Municipal Utility AuthorityLake Dallas, TX1 of 30.210 ppb15,000
Atlantic City Municipal Utilities AuthorityAtlantic City, NJ3 of 130.184 ppb152,415
City of Denison*Denison, TX1 of 60.180 ppb22,682
City of Odessa*Odessa, TX1 of 30.178 ppb97,802
Ector County Utility DistrictOdessa, TX1 of 30.178 ppb15,300
Tuskegee Utilities Board*Tuskegee, AL1 of 30.170 ppb13,500
Wellborn SUDWellborn, TX1 of 160.138 ppb19,068
City of LiberalLiberal, KS1 of 90.103 ppb21,012
Lackland Air Force BaseJbsa Lackland, TX1 of 140.1000 ppb20,907
Elsinore Valley Municipal Water District*Lake Elsinore, CA1 of 200.0950 ppb142,264
City of CrowleyCrowley, TX1 of 150.0573 ppb14,800
Camp Pendleton (North)Camp Pendleton, CA3 of 510.0518 ppb15,600
City of Granbury*Granbury, TX3 of 420.0514 ppb11,193
Swansea Water DistrictSwansea, MA1 of 180.0389 ppb17,358
Wallingford Water DepartmentWallingford, CT1 of 170.0294 ppb37,267
Fond Du Lac WaterworksFond Du Lac, WI1 of 170.0271 ppb42,000
Shrewsbury Water DepartmentShrewsbury, MA1 of 240.0263 ppb35,608
Town of Hempstead Water DepartmentEast Meadow, NY1 of 6290.00188 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.