EWG's Tap Water Database — 2019 UPDATE


Bromochloroacetic acid

Anthony Harbor Subdivision

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





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
201210.00 ppb445.50 ppb - 13.9 ppb
201314.0 ppb447.90 ppb - 18.8 ppb
201417.4 ppb4413.3 ppb - 23.9 ppb
201520.1 ppb4410.4 ppb - 25.3 ppb
201623.8 ppb4413.8 ppb - 28.9 ppb
201716.2 ppb4412.3 ppb - 19.5 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2012-03-2812039730028.70 ppb
2012-06-28120698400211.9 ppb
2012-09-251209A270025.50 ppb
2012-12-13121267200313.9 ppb
2013-03-20130379100217.1 ppb
2013-06-20Q13026200067.90 ppb
2013-09-26Q130823100118.8 ppb
2013-12-11Q131733900112.2 ppb
2014-03-26Q140990800113.3 ppb
2014-06-26Q142407900418.4 ppb
2014-09-25Q144825500113.8 ppb
2014-12-30Q146102000123.9 ppb
2015-03-24Q151090900121.1 ppb
2015-06-25Q152422000410.4 ppb
2015-09-29Q153834400123.4 ppb
2015-12-10Q154940200125.3 ppb
2016-03-23Q161219000113.8 ppb
2016-06-22Q162542000128.4 ppb
2016-09-22Q163967700128.9 ppb
2016-12-07Q165346200123.9 ppb
2017-03-02Q170898100119.5 ppb
2017-06-21Q172636600119.4 ppb
2017-09-19Q174533700112.3 ppb
2017-12-13Q176592100513.4 ppb