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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Newton

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

 

76

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND140ND
2015ND80ND
2016ND80ND
2017ND140ND
2018ND160ND
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
2014-02-1015963A14ND
2014-02-1015962A14ND
2014-02-1015965-14ND
2014-02-1015964-14ND
2014-05-21173127-14ND
2014-05-21173128-14ND
2014-05-21173129-14ND
2014-05-21173130-14ND
2014-08-12173594-14ND
2014-08-12173591-14ND
2014-08-12173592-14ND
2014-08-12173593-14ND
2014-11-11174314-14ND
2014-11-11174315-14ND
2015-02-10ND
2015-02-10ND
2015-05-12ND
2015-05-12ND
2015-08-11ND
2015-08-11ND
2015-11-10ND
2015-11-10ND
2016-02-09169-16ND
2016-02-09168-16ND
2016-05-10539-16ND
2016-05-10538-16ND
2016-08-121094-16ND
2016-08-121095-16ND
2016-11-161732-16ND
2016-11-161733-16ND
2017-02-20301-17ND
2017-02-20302-17ND
2017-05-17782-17ND
2017-05-17784-17ND
2017-05-17783-17ND
2017-05-17785-17ND
2017-08-221380-17ND
2017-08-221379-17ND
2017-08-221381-17ND
2017-08-221378-17ND
2017-11-141982-17ND
2017-11-141983-17ND
2017-11-141981-17ND
2017-11-141984-17ND
2018-02-21407-18 ND
2018-02-21406-18 ND
2018-02-21405-18 ND
2018-02-21404-18 ND
2018-05-10774-18 ND
2018-05-10771-18 ND
2018-05-10772-18 ND
2018-05-10773-18 ND
2018-08-1492396033004TTH ND
2018-08-1492396033003TTH ND
2018-08-1492396033002TTH ND
2018-08-1492396033001TTH ND
2018-11-1392407597001TTH ND
2018-11-1392407597002TTH ND
2018-11-1392407597003TTH ND
2018-11-1392407597004TTH ND
2019-02-2092418683001_3770ND
2019-02-2092418683002_3770ND
2019-02-2092418683003_3770ND
2019-02-2092418683004_3770ND
2019-05-1592429553001_3770ND
2019-05-1592429553004_3770ND
2019-05-1592429553003_3770ND
2019-05-1592429553002_3770ND
2019-08-1392441527002_3770ND
2019-08-1392441527004_3770ND
2019-08-1392441527003_3770ND
2019-08-1392441527001_3770ND
2019-11-1392453840004_3770ND
2019-11-1392453840003_3770ND
2019-11-1392453840002_3770ND
2019-11-1392453840001_3770ND