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EWG's Tap Water Database — 2021 UPDATE

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Bromochloroacetic acid

North City Water District

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.

MORE ABOUT THIS CONTAMINANT

 

95

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.0625 ppb161ND - 1.000 ppb
20150.492 ppb165ND - 2.10 ppb
20160.398 ppb164ND - 1.81 ppb
20170.0773 ppb151ND - 1.16 ppb
2018ND160ND
2019ND160ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for bromochloroacetic 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
2014-02-1302883ND
2014-02-1302880ND
2014-02-1302881ND
2014-02-1302882ND
2014-05-1508665ND
2014-05-1508664ND
2014-05-1508663ND
2014-05-1508662ND
2014-08-1414905ND
2014-08-1414906ND
2014-08-1414904ND
2014-08-1414903ND
2014-11-1321771ND
2014-11-1321770ND
2014-11-13217681.000 ppb
2014-11-1321769ND
2015-02-1041401ND
2015-02-1041402ND
2015-02-1041403ND
2015-02-1041404ND
2015-05-1414604ND
2015-05-1414602ND
2015-05-14146011.05 ppb
2015-05-1414603ND
2015-08-13718011.11 ppb
2015-08-1371802ND
2015-08-1371804ND
2015-08-1371803ND
2015-11-10466032.10 ppb
2015-11-10466011.71 ppb
2015-11-1046602ND
2015-11-10466041.90 ppb
2016-02-121.70 ppb
2016-02-121.81 ppb
2016-02-121.27 ppb
2016-02-121.59 ppb
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2017-02-14ND
2017-02-14ND
2017-02-14ND
2017-05-10ND
2017-05-10ND
2017-05-10ND
2017-05-10ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-11-14ND
2017-11-14ND
2017-11-14ND
2017-11-141.16 ppb
2018-02-13ND
2018-02-13ND
2018-02-13ND
2018-02-13ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-08-02ND
2018-08-02ND
2018-08-02ND
2018-08-02ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2019-02-21ND
2019-02-21ND
2019-02-21ND
2019-02-21ND
2019-05-15ND
2019-05-15ND
2019-05-15ND
2019-05-15ND
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND