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EWG's Tap Water Database — 2019 UPDATE

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Tribromoacetic acid

Status: No national drinking water standard exists

 

Tribromoacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

2015-2017:

FOUND
FOUND ABOVE HEALTH GUIDELINES

2

states detected

81

utilities detected

485,000

people served

2

states over health guideline

81

utilities over health guideline

485,000

people served over health guideline

Health concerns for tribromoacetic acid

Change to fetal growth and development

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for tribromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

States reporting tribromoacetic acid in drinking water

UTILITIES REPORTING ABOVE HEALTH GUIDELINES UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served UtilitiesPeople Served
Missouri80484,22180484,221
Montana13201320
MORE
LESS

Filtering technologies that reduce tribromoacetic acid

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of tribromoacetic acid, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Emerald View ParkBillings, MT1 of 119.2 ppb320
Stoddard County Public Water Supply District 4Dexter, MO1 of 32.73 ppb1,743
Annapolis PWSAnnapolis, MO1 of 12.50 ppb345
Paradise Landing Kimberling ShoresKimberling City, MO1 of 12.49 ppb33
New Franklin PWSNew Franklin, MO8 of 252.05 ppb1,089
Gasconade PWSGasconade, MO1 of 12.00 ppb280
Jackson County Public Water Supply District 17Grain Valley, MO1 of 31.94 ppb2,205
Elsberry PWSElsberry, MO1 of 31.74 ppb1,963
Hawk Point PWSHawk Point, MO1 of 31.60 ppb669
Wellington PWSWellington, MO1 of 31.40 ppb812
Montgomery County Public Water Supply District 1 Montgomery CityWarrenton, MO1 of 31.33 ppb20
Montgomery City PWS*Montgomery City, MO1 of 31.33 ppb2,712
Winfield PWSWinfield, MO1 of 31.30 ppb1,700
Chillicothe Municipal Utilities*Chillicothe, MO1 of 31.22 ppb9,515
Lincoln County Public Water Supply District 2Troy, MO1 of 31.17 ppb1,306
Ellington PWSEllington, MO1 of 31.17 ppb987
Warrenton PWSWarrenton, MO1 of 31.16 ppb7,880
Cardwell PWSCardwell, MO1 of 21.11 ppb713
Dexter PWSDexter, MO1 of 31.10 ppb8,000
Blackwater PWSBlackwater, MO3 of 101.07 ppb205
Howard County Cons Public Water Supply District 1New Franklin, MO3 of 101.06 ppb2,100
Meadville PWSMeadville, MO1 of 120.925 ppb450
Clinton County Public Water Supply District 1Trimble, MO2 of 240.914 ppb957
Chula PWSChula, MO1 of 30.887 ppb210
Livingston County Public Water Supply District 2*Chillicothe, MO1 of 30.887 ppb2,053
Liberty*Liberty, MO4 of 380.886 ppb29,000
Clay County Public Water Supply District 4*Liberty, MO4 of 380.886 ppb970
Twin Island EstatesBlue Eye, MO1 of 30.850 ppb525
Clinton County Public Water Supply District 3Cameron, MO2 of 240.846 ppb3,410
Howard County Regional Water Comm.*New Franklin, MO2 of 80.785 ppb25
Stoddard County Public Water Supply District 1*Dexter, MO1 of 30.743 ppb4,200
Mound City PWS*Mound City, MO1 of 30.743 ppb1,295
Mississippi County Public Water Supply District 1Anniston, MO1 of 30.720 ppb2,510
Palmyra PWS*Palmyra, MO2 of 170.719 ppb3,595
Miami PWSMiami, MO2 of 110.706 ppb140
EurekaEureka, MO1 of 60.702 ppb10,000
Caldwell County Public Water Supply District 1Cowgill, MO1 of 100.680 ppb460
Malta Bend PWSMalta Bend, MO2 of 100.669 ppb200
Vernon County Public Water Supply District 2Seldon, MO1 of 30.660 ppb1,175
Nelson PWSNelson, MO2 of 120.578 ppb189
Crystal City PWSCrystal City, MO3 of 260.532 ppb4,900
Calhoun PWSCalhoun, MO2 of 240.528 ppb496
Henry County Public Water Supply District 3*Clinton, MO2 of 240.528 ppb2,600
Saline County Public Water Supply District 1Marshall, MO2 of 120.513 ppb480
Nodaway County Public Water Supply District 1*Maryville, MO2 of 240.511 ppb6,140
Skidmore PWSSkidmore, MO2 of 240.511 ppb284
KennettKennett, MO1 of 60.505 ppb11,500
Franklin County Public Water Supply District 3 - Lake SereneVilla Ridge, MO1 of 40.485 ppb600
Princeton PWS*Princeton, MO2 of 240.470 ppb1,166
Livingston County Public Water Supply District 1Dawn, MO1 of 60.433 ppb1,320

* 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 Tribromoacetic acid, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Liberty*Liberty, MO4 of 380.886 ppb29,000
EurekaEureka, MO1 of 60.702 ppb10,000
KennettKennett, MO1 of 60.505 ppb11,500
Lincoln County PWSD 1*Winfield, MO1 of 60.320 ppb11,000
Marshall*Marshall, MO3 of 460.320 ppb13,065
Columbia*Columbia, MO4 of 720.226 ppb100,733
RaymoreRaymore, MO1 of 260.181 ppb19,963
GladstoneGladstone, MO2 of 480.171 ppb27,000
Macon County PWSD 1*Macon, MO1 of 480.165 ppb11,606
FestusFestus, MO1 of 240.112 ppb11,600
Excelsior Springs*Excelsior Springs, MO2 of 480.0854 ppb11,084
Lees SummitLees Summit, MO1 of 470.0457 ppb97,135

* 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 Tribromoacetic acid, but it likely has the contaminant in its water supply.