EWG's Tap Water Database — 2019 UPDATE


Dibromoacetic acid

Lakeway MUD

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.





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
20123.70 ppb113.70 ppb
20134.00 ppb551.50 ppb - 5.80 ppb
20144.49 ppb16162.90 ppb - 5.90 ppb
20153.29 ppb16161.30 ppb - 4.80 ppb
20162.23 ppb1615ND - 4.10 ppb
20172.35 ppb1614ND - 4.30 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2012-05-03AB888903.70 ppb
2013-06-14Q13023340015.80 ppb
2013-11-07Q13122510041.50 ppb
2013-11-07Q13122510034.20 ppb
2013-11-07Q13122510024.00 ppb
2013-11-07Q13122510014.50 ppb
2014-03-19AC477163.90 ppb
2014-03-19AC477173.80 ppb
2014-03-19AC476982.90 ppb
2014-03-19AC477004.00 ppb
2014-06-16AC569434.20 ppb
2014-06-16AC569404.20 ppb
2014-06-16AC569445.30 ppb
2014-06-16AC569324.70 ppb
2014-08-20AC647015.90 ppb
2014-08-20AC647265.30 ppb
2014-08-20AC647005.10 ppb
2014-08-20AC647304.90 ppb
2014-11-20AC726694.30 ppb
2014-11-20AC726683.40 ppb
2014-11-20AC726664.70 ppb
2014-11-20AC726635.20 ppb
2015-03-10AC834564.10 ppb
2015-03-10AC834784.30 ppb
2015-03-10AC834603.30 ppb
2015-03-10AC834574.40 ppb
2015-05-18AC922954.20 ppb
2015-05-18AC922964.70 ppb
2015-05-18AC922984.20 ppb
2015-05-18AC922934.80 ppb
2015-09-10AD065262.30 ppb
2015-09-10AD065251.30 ppb
2015-09-10AD065283.40 ppb
2015-09-10AD065293.90 ppb
2015-12-02AD151232.20 ppb
2015-12-02AD151181.60 ppb
2015-12-02AD151191.70 ppb
2015-12-02AD151202.30 ppb
2016-02-17AD238981.90 ppb
2016-02-17AD238961.20 ppb
2016-02-17AD238991.60 ppb
2016-02-17AD238951.70 ppb
2016-05-23AD376902.60 ppb
2016-05-23AD376882.50 ppb
2016-05-23AD376872.50 ppb
2016-05-23AD377152.30 ppb
2016-07-27AD459622.00 ppb
2016-07-27AD459612.10 ppb
2016-07-27AD459572.10 ppb
2016-11-07AD567893.20 ppb
2016-11-07AD567922.30 ppb
2016-11-07AD567954.10 ppb
2016-11-07AD567913.60 ppb
2017-01-26AD670903.30 ppb
2017-01-26AD671133.10 ppb
2017-01-26AD671093.20 ppb
2017-01-26AD671033.00 ppb
2017-04-25AD809272.20 ppb
2017-04-25AD809252.10 ppb
2017-04-25AD809281.60 ppb
2017-04-25AD809292.70 ppb
2017-08-31AD946093.10 ppb
2017-08-31AD946063.50 ppb
2017-08-31AD946072.00 ppb
2017-08-31AD946104.30 ppb
2017-10-31AE028902.50 ppb
2017-10-31AE028951.000 ppb