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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Thomaston

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

 

102

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-03-11AI34582ND
2014-03-11AI34583ND
2014-03-11AI34584ND
2014-03-11AI34585ND
2014-05-12AI40280ND
2014-06-11AI42941ND
2014-06-11AI42942ND
2014-06-11AI42943ND
2014-06-11AI42944ND
2014-09-09AI53166ND
2014-09-09AI53167ND
2014-09-09AI53168ND
2014-09-09AI53169ND
2014-12-09AI61135ND
2014-12-09AI61136ND
2014-12-09AI61137ND
2014-12-09AI61138ND
2015-03-11AI68827ND
2015-03-11AI68828ND
2015-03-11AI68829ND
2015-03-11AI68830ND
2015-04-08AI74401ND
2015-06-08AI79024ND
2015-06-08AI79025ND
2015-06-08AI79026ND
2015-06-08AI79027ND
2015-09-08AI89181ND
2015-09-08AI89182ND
2015-09-08AI89183ND
2015-09-08AI89184ND
2015-12-10AJ02541ND
2015-12-10AJ02542ND
2015-12-10AJ02543ND
2015-12-10AJ02544ND
2016-03-08AJ07881ND
2016-03-08AJ07882ND
2016-03-08AJ07883ND
2016-03-08AJ07884ND
2016-05-09AJ11748ND
2016-06-08AJ13754ND
2016-06-08AJ13755ND
2016-06-08AJ13756ND
2016-06-08AJ13757ND
2016-09-14AJ27215ND
2016-09-14AJ27216ND
2016-09-14AJ27217ND
2016-09-14AJ27218ND
2016-12-11AJ36546ND
2016-12-11AJ36547ND
2016-12-11AJ36548ND
2016-12-11AJ36549ND
2017-03-07AJ47653ND
2017-03-07AJ47654ND
2017-03-07AJ47655ND
2017-03-07AJ47656ND
2017-06-12AJ57282ND
2017-06-15AJ57797ND
2017-06-15AJ57798ND
2017-06-15AJ57799ND
2017-06-15AJ57800ND
2017-09-19168465-01ND
2017-09-19168465-02ND
2017-09-19168465-03ND
2017-09-19168465-04ND
2017-12-14171131-01ND
2017-12-14171131-02ND
2017-12-14171131-03ND
2017-12-14171131-04ND
2018-02-20176604-01ND
2018-02-20176604-02ND
2018-02-20176604-03ND
2018-02-20176604-04ND
2018-05-10166061-01ND
2018-05-10166061-02ND
2018-05-10166061-03ND
2018-05-10166061-04ND
2018-08-14182161-01ND
2018-08-21182441-01ND
2018-08-21182441-02ND
2018-08-21182441-03ND
2018-08-21182441-04ND
2018-12-13185137-01ND
2018-12-13185137-02ND
2018-12-13185137-03ND
2018-12-13185137-04ND
2019-03-07187877-01ND
2019-03-07187877-02ND
2019-03-07187877-03ND
2019-03-07187877-04ND
2019-05-21191020-01ND
2019-05-21191020-02ND
2019-05-21191020-03ND
2019-05-21191020-04ND
2019-05-23191197-01ND
2019-08-15194513-01ND
2019-08-15194513-02ND
2019-08-15194513-03ND
2019-08-15194513-04ND
2019-11-21194512-01ND
2019-11-21194512-02ND
2019-11-21194512-03ND
2019-11-21194512-04ND