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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Pennsylvania American Coatesville

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

101

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND190ND
2016ND170ND
2017ND160ND
2018ND170ND
2019ND160ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-0624673601ND
2014-02-0624673801ND
2014-02-0624673701ND
2014-02-0624673201ND
2014-05-0525554501ND
2014-05-0525554701ND
2014-05-0525554601ND
2014-05-0525554001ND
2014-08-0526532601ND
2014-08-0526532801ND
2014-08-0526532701ND
2014-08-0526532101ND
2014-11-0427375401ND
2014-11-0427375601ND
2014-11-0427375501ND
2014-11-0427374701ND
2015-02-0412397164ND
2015-02-0412397176ND
2015-02-0412397170ND
2015-02-0412397155ND
2015-05-0512744995ND
2015-05-0512745007ND
2015-05-0512745001ND
2015-05-0512744986ND
2015-06-1012876414ND
2015-06-1012876408ND
2015-06-1012876420ND
2015-08-0413130691ND
2015-08-0413130703ND
2015-08-0413130697ND
2015-08-0413130682ND
2015-11-0313509613ND
2015-11-0313509625ND
2015-11-0313509619ND
2015-11-0313509604ND
2016-02-0413865787ND
2016-02-0413865799ND
2016-02-0413865793ND
2016-02-0413865778ND
2016-02-1713865805ND
2016-05-0314244636ND
2016-05-0314244648ND
2016-05-0314244642ND
2016-05-0314244627ND
2016-08-0314728980ND
2016-08-0314728992ND
2016-08-0314728986ND
2016-08-0314728971ND
2016-11-0315221034ND
2016-11-0315221046ND
2016-11-0315221040ND
2016-11-0315221025ND
2017-02-0215649764ND
2017-02-0215649776ND
2017-02-0215649770ND
2017-02-0215649755ND
2017-05-0316088045ND
2017-05-0316088057ND
2017-05-0316088051ND
2017-05-0316088036ND
2017-08-0316559667ND
2017-08-0316559679ND
2017-08-0316559673ND
2017-08-0316559658ND
2017-11-0217017998ND
2017-11-0217018010ND
2017-11-0217018004ND
2017-11-0217017989ND
2018-02-0538550701ND
2018-02-0538550901ND
2018-02-0538550801ND
2018-02-0538550101ND
2018-05-0339400701ND
2018-05-0339400901ND
2018-05-0339400801ND
2018-05-0339400201ND
2018-06-1339930401ND
2018-08-0240666401ND
2018-08-0240666601ND
2018-08-0240666501ND
2018-08-0240665901ND
2018-11-0541777001ND
2018-11-0541777201ND
2018-11-0541777101ND
2018-11-0541775601ND
2019-02-0442862501ND
2019-02-0442862601ND
2019-02-0442862801ND
2019-02-0442862701ND
2019-05-0244027601ND
2019-05-0244027701ND
2019-05-0244027801ND
2019-05-0244027901ND
2019-08-0545846001ND
2019-08-0545846101ND
2019-08-0545846201ND
2019-08-0545846301ND
2019-11-0447375401ND
2019-11-0447375501ND
2019-11-0447375601ND
2019-11-0447375701ND