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EWG's Tap Water Database — 2021 UPDATE

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Bromochloroacetic acid

Snoqualmie Water

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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32

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
20140.900 ppb85ND - 2.00 ppb
20150.538 ppb166ND - 1.80 ppb
2016ND40ND
2017ND20ND
2018ND20ND
2019N/A00N/A

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
2014-01-2182914ND
2014-01-22829132.00 ppb
2014-04-23830411.40 ppb
2014-04-2383042ND
2014-07-22832871.10 ppb
2014-07-22832881.10 ppb
2014-10-2183760ND
2014-10-21837611.60 ppb
2015-01-2083943ND
2015-01-20839461.20 ppb
2015-01-2083944ND
2015-01-20839451.30 ppb
2015-04-21841331.30 ppb
2015-04-2184135ND
2015-04-2184134ND
2015-04-21841321.20 ppb
2015-07-21843661.80 ppb
2015-07-21843671.80 ppb
2015-07-2184365ND
2015-07-2184368ND
2015-10-2784693ND
2015-10-2784690ND
2015-10-2784692ND
2015-10-2784691ND
2016-01-19ND
2016-01-19ND
2016-01-19ND
2016-01-20ND
2017-06-14ND
2017-06-14ND
2018-05-23ND
2018-05-23ND