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EWG's Tap Water Database — 2021 UPDATE

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Bromochloroacetic acid

Seattle Public Utilities

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.

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288

Samples

0

Samples exceeding legal limit (MCL)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0667 ppb483ND - 1.10 ppb
20150.685 ppb4817ND - 3.62 ppb
20160.304 ppb4812ND - 1.61 ppb
20170.0219 ppb481ND - 1.05 ppb
2018ND480ND
20190.0210 ppb481ND - 1.01 ppb

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
2014-02-0402165ND
2014-02-0402162ND
2014-02-0402169ND
2014-02-0402160ND
2014-02-0402161ND
2014-02-0402164ND
2014-02-0402159ND
2014-02-0402163ND
2014-02-0402168ND
2014-02-0402166ND
2014-02-0402167ND
2014-02-0402158ND
2014-05-0607975ND
2014-05-0607983ND
2014-05-0607980ND
2014-05-0607985ND
2014-05-0607982ND
2014-05-0607984ND
2014-05-0607974ND
2014-05-0607981ND
2014-05-0607979ND
2014-05-0607977ND
2014-05-0607976ND
2014-05-0607978ND
2014-08-0514164ND
2014-08-0514156ND
2014-08-0514159ND
2014-08-0514158ND
2014-08-0514160ND
2014-08-0514166ND
2014-08-0514167ND
2014-08-0514163ND
2014-08-0514157ND
2014-08-0514161ND
2014-08-0514162ND
2014-08-0514165ND
2014-11-0621270ND
2014-11-0621278ND
2014-11-0621274ND
2014-11-0621280ND
2014-11-06212751.000 ppb
2014-11-06212731.10 ppb
2014-11-0621277ND
2014-11-06212711.10 ppb
2014-11-0621276ND
2014-11-0621272ND
2014-11-0621279ND
2014-11-0621281ND
2015-02-0540512ND
2015-02-0540508ND
2015-02-0540507ND
2015-02-0540503ND
2015-02-0540510ND
2015-02-0540509ND
2015-02-0540501ND
2015-02-0540502ND
2015-02-0540504ND
2015-02-0540511ND
2015-02-0540505ND
2015-02-0540506ND
2015-05-0812012ND
2015-05-0812011ND
2015-05-0812010ND
2015-05-0812009ND
2015-05-0812008ND
2015-05-0812007ND
2015-05-08120061.02 ppb
2015-05-08120051.03 ppb
2015-05-08120041.62 ppb
2015-05-0812003ND
2015-05-08120021.000 ppb
2015-05-08120011.08 ppb
2015-08-0466312ND
2015-08-0466311ND
2015-08-0466310ND
2015-08-0466309ND
2015-08-0466308ND
2015-08-0466307ND
2015-08-04663061.73 ppb
2015-08-0466305ND
2015-08-04663041.05 ppb
2015-08-0466303ND
2015-08-04663021.59 ppb
2015-08-04663011.11 ppb
2015-11-0544412ND
2015-11-05444111.10 ppb
2015-11-05444103.16 ppb
2015-11-0544409ND
2015-11-0544408ND
2015-11-0544407ND
2015-11-05444062.95 ppb
2015-11-05444052.60 ppb
2015-11-05444042.58 ppb
2015-11-05444032.91 ppb
2015-11-05444023.62 ppb
2015-11-05444012.71 ppb
2016-02-021.39 ppb
2016-02-021.60 ppb
2016-02-021.47 ppb
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-021.61 ppb
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-05-04ND
2016-05-04ND
2016-05-04ND
2016-05-04ND
2016-05-04ND
2016-05-04ND
2016-05-04ND
2016-05-041.12 ppb
2016-05-04ND
2016-05-041.06 ppb
2016-05-041.14 ppb
2016-05-04ND
2016-08-031.02 ppb
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-031.08 ppb
2016-08-03ND
2016-08-03ND
2016-08-031.07 ppb
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-11-02ND
2016-11-02ND
2016-11-021.03 ppb
2016-11-021.000 ppb
2016-11-02ND
2016-11-02ND
2016-11-02ND
2016-11-02ND
2016-11-02ND
2016-11-02ND
2016-11-02ND
2016-11-02ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-14ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-05-02ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-08-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-07ND
2017-11-081.05 ppb
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-08-01ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2018-11-06ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-11-07ND
2019-11-07ND
2019-11-07ND
2019-11-071.01 ppb
2019-11-07ND
2019-11-07ND
2019-11-07ND
2019-11-07ND
2019-11-07ND
2019-11-07ND
2019-11-07ND
2019-11-07ND