Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromoacetic acid

Harris County Water System

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)

43

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.375 ppb165ND - 1.50 ppb
20150.731 ppb167ND - 2.50 ppb
20160.669 ppb167ND - 2.10 ppb
20171.000 ppb1612ND - 2.20 ppb
20180.613 ppb168ND - 1.60 ppb
20190.431 ppb164ND - 2.70 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
2014-01-13AI26357ND
2014-01-13AI26356ND
2014-01-13AI26355ND
2014-01-13AI26354ND
2014-04-14AI37972ND
2014-04-14AI37971ND
2014-04-14AI37970ND
2014-04-14AI37969ND
2014-07-14AI45638ND
2014-07-14AI45637ND
2014-07-14AI45639ND
2014-07-14AI456401.000 ppb
2014-10-15AI576631.10 ppb
2014-10-15AI576621.30 ppb
2014-10-15AI576611.10 ppb
2014-10-15AI576601.50 ppb
2015-01-13AI62796ND
2015-01-13AI62795ND
2015-01-13AI62794ND
2015-01-13AI62793ND
2015-04-13AI74632ND
2015-04-13AI74633ND
2015-04-13AI74635ND
2015-04-13AI74634ND
2015-07-13AI827041.20 ppb
2015-07-13AI827031.10 ppb
2015-07-13AI827021.000 ppb
2015-07-13AI827011.50 ppb
2015-10-13AI92741ND
2015-10-13AI927402.30 ppb
2015-10-13AI927392.10 ppb
2015-10-13AI927382.50 ppb
2016-01-11AJ03862ND
2016-01-11AJ03861ND
2016-01-11AJ03863ND
2016-01-11AJ03864ND
2016-04-11AJ09796ND
2016-04-11AJ09795ND
2016-04-11AJ09794ND
2016-04-11AJ09793ND
2016-07-11AJ171141.10 ppb
2016-07-11AJ171131.30 ppb
2016-07-11AJ171121.20 ppb
2016-07-11AJ171111.70 ppb
2016-10-11AJ311972.10 ppb
2016-10-11AJ31200ND
2016-10-11AJ311991.60 ppb
2016-10-11AJ311981.70 ppb
2017-01-09AJ377601.80 ppb
2017-01-09AJ377592.20 ppb
2017-01-09AJ377582.00 ppb
2017-01-09AJ377571.20 ppb
2017-04-10AJ52888ND
2017-04-10AJ528871.10 ppb
2017-04-10AJ528861.000 ppb
2017-04-10AJ52885ND
2017-07-10AJ595851.20 ppb
2017-07-10AJ595841.30 ppb
2017-07-10AJ595861.10 ppb
2017-07-10AJ595871.000 ppb
2017-10-11AJ715371.000 ppb
2017-10-11AJ71536ND
2017-10-11AJ71535ND
2017-10-11AJ715341.10 ppb
2018-01-09AJ76342ND
2018-01-09AJ763411.10 ppb
2018-01-09AJ76340ND
2018-01-09AJ763391.20 ppb
2018-04-10AJ87204ND
2018-04-10AJ87205ND
2018-04-10AJ87207ND
2018-04-10AJ87206ND
2018-07-23AJ952661.10 ppb
2018-07-24AJ95265ND
2018-07-24AJ95264ND
2018-07-24AJ952631.10 ppb
2018-10-09AK037211.30 ppb
2018-10-09AK037201.20 ppb
2018-10-09AK037191.20 ppb
2018-10-09AK037181.60 ppb
2019-01-07AK08952ND
2019-01-07AK08951ND
2019-01-07AK08953ND
2019-01-07AK08954ND
2019-04-09AK14902ND
2019-04-09AK14901ND
2019-04-09AK14900ND
2019-04-09AK14899ND
2019-07-08AK21660ND
2019-07-08AK21659ND
2019-07-08AK21658ND
2019-07-08AK21657ND
2019-10-08AK345911.30 ppb
2019-10-08AK345942.70 ppb
2019-10-08AK345931.50 ppb
2019-10-08AK345921.40 ppb