Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromoacetic acid

Howard Waterworks

Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

96

Samples

0

Samples exceeding legal limit (MCL)

95

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.801 ppb16160.390 ppb - 1.40 ppb
20151.01 ppb16160.380 ppb - 1.60 ppb
20161.05 ppb16160.700 ppb - 1.40 ppb
20170.891 ppb1615ND - 1.40 ppb
20180.921 ppb16160.350 ppb - 1.30 ppb
20190.793 ppb16160.430 ppb - 1.10 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for dibromoacetic 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

All test results

Date Lab ID Result
2014-03-137747200.430 ppb
2014-03-137747190.480 ppb
2014-03-137747210.500 ppb
2014-03-137747180.420 ppb
2014-06-117965010.890 ppb
2014-06-117965030.900 ppb
2014-06-117965020.940 ppb
2014-06-117965000.990 ppb
2014-09-088171311.30 ppb
2014-09-088171321.40 ppb
2014-09-088171340.390 ppb
2014-09-098171331.30 ppb
2014-12-028343380.730 ppb
2014-12-028343400.750 ppb
2014-12-028343370.690 ppb
2014-12-028343390.710 ppb
2015-03-108477111.60 ppb
2015-03-108477141.30 ppb
2015-03-108477131.60 ppb
2015-03-108477121.50 ppb
2015-06-108650331.30 ppb
2015-06-108650341.40 ppb
2015-06-108650321.30 ppb
2015-06-108650311.20 ppb
2015-09-108830130.900 ppb
2015-09-108830120.880 ppb
2015-09-108830140.740 ppb
2015-09-108830150.710 ppb
2015-12-088977840.380 ppb
2015-12-088977830.440 ppb
2015-12-088977850.380 ppb
2015-12-088977860.520 ppb
2016-03-079090350.900 ppb
2016-03-079090330.950 ppb
2016-03-079090320.950 ppb
2016-03-079090341.10 ppb
2016-06-079253140.960 ppb
2016-06-079253131.000 ppb
2016-06-079253161.20 ppb
2016-06-079253151.30 ppb
2016-09-079442310.700 ppb
2016-09-079442281.40 ppb
2016-09-079442300.840 ppb
2016-09-079442290.790 ppb
2016-12-069650471.10 ppb
2016-12-069650451.20 ppb
2016-12-069650441.20 ppb
2016-12-069650461.20 ppb
2017-03-07976761ND
2017-03-079767630.930 ppb
2017-03-079767620.770 ppb
2017-03-079767600.730 ppb
2017-06-069962270.690 ppb
2017-06-069962251.10 ppb
2017-06-069962281.000 ppb
2017-06-069962261.10 ppb
2017-09-0610166980.610 ppb
2017-09-0610167000.660 ppb
2017-09-0610166990.670 ppb
2017-09-0610166971.40 ppb
2017-12-0510326601.10 ppb
2017-12-0510326631.10 ppb
2017-12-0510326621.20 ppb
2017-12-0510326611.20 ppb
2018-03-0710443371.30 ppb
2018-03-0710443341.20 ppb
2018-03-0710443361.000 ppb
2018-03-0710443351.20 ppb
2018-06-1310616040.960 ppb
2018-06-1310616021.10 ppb
2018-06-1310616031.000 ppb
2018-06-1310616051.000 ppb
2018-09-0510786430.870 ppb
2018-09-0510786440.420 ppb
2018-09-0510786460.350 ppb
2018-09-0510786450.600 ppb
2018-12-0310955610.670 ppb
2018-12-0310955590.970 ppb
2018-12-0310955581.000 ppb
2018-12-0310955601.10 ppb
2019-03-1111094120.730 ppb
2019-03-1111094140.770 ppb
2019-03-1111094150.830 ppb
2019-03-1111094130.850 ppb
2019-06-0511260380.660 ppb
2019-06-0511260390.690 ppb
2019-06-0511260400.680 ppb
2019-06-0511260370.650 ppb
2019-09-0911469430.430 ppb
2019-09-0911469410.770 ppb
2019-09-0911469420.870 ppb
2019-09-0911469401.10 ppb
2019-12-0311635080.820 ppb
2019-12-0311635070.830 ppb
2019-12-0311635051.000 ppb
2019-12-0311635061.000 ppb