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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Danbury Water Department

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

 

207

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND370ND
2015ND340ND
2016ND340ND
2017ND340ND
2018ND340ND
2019ND340ND

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
2014-02-18E402994-5VOCND
2014-02-18E402994-6VOCND
2014-03-11E403C94-2TTHMND
2014-03-11E403C94-4TTHMND
2014-03-11E403C94-7TTHMND
2014-03-12E403C94-1TTHMND
2014-03-13E403C94-6TTHMND
2014-03-14E403C94-8TTHMND
2014-03-17E403C94-3TTHMND
2014-03-18E403C94-5TTHMND
2014-06-10E406G56-4TTHMND
2014-06-10E406G56-6TTHMND
2014-06-11E406G56-1TTHMND
2014-06-12E406G56-2TTHMND
2014-06-12E406G56-7TTHMND
2014-06-12E406G56-8TTHMND
2014-06-13E406G56-5TTHMND
2014-06-16E406G56-3TTHMND
2014-09-10E409F66-1TTHMND
2014-09-11E409F66-4TTHMND
2014-09-11E409F66-6TTHMND
2014-09-12E409F66-2TTHMND
2014-09-12E409F66-8TTHMND
2014-09-15E409F66-3TTHMND
2014-09-23E409M19-1TTHMND
2014-09-23E409M19-2TTHMND
2014-09-23E409M19-3TTHMND
2014-09-30E409T37-2TTHMND
2014-09-30E410021-1TTHMND
2014-12-12E412D88-1TTHMND
2014-12-12E412D88-7TTHMND
2014-12-12E412D88-8TTHMND
2014-12-15E412D88-2TTHMND
2014-12-15E412D88-3TTHMND
2014-12-15E412D88-4TTHMND
2014-12-15E412D88-6TTHMND
2014-12-16E412D88-5TTHMND
2015-03-12E503B60-5TTHMND
2015-03-12E503B60-2TTHMND
2015-03-13E503B60-1TTHMND
2015-03-13E503B60-6TTHMND
2015-03-13E503B60-4TTHMND
2015-03-16E503B60-3TTHMND
2015-03-25E503J77-1TTHMND
2015-03-26E503J77-2TTHMND
2015-04-21E504H71-2VOCND
2015-04-21E504H71-1VOCND
2015-06-11E506H99-5TTHMND
2015-06-12E506H99-7TTHMND
2015-06-12E506H99-8TTHMND
2015-06-15E506H99-1TTHMND
2015-06-15E506H99-2TTHMND
2015-06-15E506H99-3TTHMND
2015-06-15E506H99-4TTHMND
2015-06-16E506H99-6TTHMND
2015-09-18E509O88-8TTHMND
2015-09-18E509O88-6TTHMND
2015-09-21E509O88-1TTHMND
2015-09-21E509O88-2TTHMND
2015-09-21E509O88-3TTHMND
2015-09-22E509O88-5TTHMND
2015-09-29E509W38-2TTHMND
2015-09-29E509W38-1TTHMND
2015-12-17E512K74-2-17TTHMND
2015-12-17E512K74-1-16TTHMND
2015-12-17E512K74-5-19TTHMND
2015-12-17E512K74-7-15TTHMND
2015-12-17E512K74-4-18TTHMND
2015-12-18E512K74-6-20TTHMND
2015-12-18E512K74-8-04TTHMND
2015-12-21E512K74-3-03TTHMND
2016-03-09E603E03-4-18TTHMND
2016-03-09E603E03-1-16TTHMND
2016-03-10E603E03-2-17TTHMND
2016-03-10E603E03-5-19TTHMND
2016-03-10E603E03-6-20TTHMND
2016-03-10E603E03-7-15TTHMND
2016-03-11E603E03-8-04TTHMND
2016-03-14E603E03-3-03TTHMND
2016-04-19E604J01-5VOCND
2016-04-19E604J01-6VOCND
2016-06-16E606O13-1-16TTHMND
2016-06-16E606O13-2-17TTHMND
2016-06-16E606O13-4-18TTHMND
2016-06-16E606O13-5-19TTHMND
2016-06-16E606O13-6-20TTHMND
2016-06-16E606O13-8-04TTHMND
2016-06-20E606O13-7-15TTHMND
2016-06-20E606O13-3-03TTHMND
2016-09-08188687CHND
2016-09-09188691CHND
2016-09-13188689CHND
2016-09-13188677CHND
2016-09-13188679CHND
2016-09-13188681CHND
2016-09-13188683CHND
2016-09-14188685CHND
2016-12-12192764CHND
2016-12-13192766CHND
2016-12-13192768CHND
2016-12-13192760CHND
2016-12-13192762CHND
2016-12-13192754CHND
2016-12-13192756CHND
2016-12-14192758CHND
2017-02-15194887GEND
2017-02-15194886GEND
2017-03-09196065GEND
2017-03-09196059GEND
2017-03-09196061GEND
2017-03-13196063GEND
2017-03-14196069GEND
2017-03-15196071GEND
2017-03-15196073GEND
2017-03-15196067GEND
2017-06-13200345GEND
2017-06-13200351GEND
2017-06-14200349GEND
2017-06-14200341GEND
2017-06-14200339GEND
2017-06-15200343GEND
2017-06-15200347GEND
2017-06-15200353GEND
2017-09-12204472GEND
2017-09-12204474GEND
2017-09-12204478GEND
2017-09-12204484GEND
2017-09-12204486GEND
2017-09-13204480GEND
2017-09-13204482GEND
2017-09-13204476GEND
2017-12-11208503GEND
2017-12-11208505GEND
2017-12-12208507GEND
2017-12-12208509GEND
2017-12-12208511GEND
2017-12-12208513GEND
2017-12-12208501GEND
2017-12-12208499GEND
2018-02-21210745GEND
2018-02-21210744GEND
2018-03-14211584GEND
2018-03-14211586GEND
2018-03-14211588GEND
2018-03-14211590GEND
2018-03-14211598GEND
2018-03-15211592GEND
2018-03-15211594GEND
2018-03-15211596GEND
2018-06-19215750GEND
2018-06-19215736GEND
2018-06-19215738GEND
2018-06-19215742GEND
2018-06-19215744GEND
2018-06-20215746GEND
2018-06-20215748GEND
2018-06-20215740GEND
2018-09-14DBP 200505484ND
2018-09-14DBP 200505486ND
2018-09-14DBP 200505491ND
2018-09-14DBP 200505493ND
2018-09-14DBP 200505495ND
2018-09-14DBP 200505497ND
2018-09-14DBP 200505499ND
2018-09-17DBP 200505658ND
2018-12-14DBP 200516093ND
2018-12-14DBP 200516094ND
2018-12-14DBP 200516095ND
2018-12-14DBP 200516096ND
2018-12-14DBP 200516097ND
2018-12-14DBP 200516098ND
2018-12-14DBP 200516099ND
2018-12-14DBP 200516100ND
2019-03-14DBP 200524760ND
2019-03-14DBP 200524761ND
2019-03-14DBP 200524762ND
2019-03-14DBP 200524763ND
2019-03-14DBP 200524764ND
2019-03-14DBP 200524765ND
2019-03-14DBP 200524766ND
2019-03-14DBP 200524767ND
2019-06-20DBP 200537265ND
2019-06-20DBP 200537266ND
2019-06-20DBP 200537267ND
2019-06-20DBP 200537268ND
2019-06-20DBP 200537269ND
2019-06-20DBP 200537270ND
2019-06-20DBP 200537271ND
2019-06-20DBP 200537272ND
2019-08-15VOC1 200545121ND
2019-08-15VOC1 200545122ND
2019-09-19DBP 200549612ND
2019-09-19DBP 200549613ND
2019-09-19DBP 200549614ND
2019-09-19DBP 200549615ND
2019-09-19DBP 200549616ND
2019-09-19DBP 200549617ND
2019-09-19DBP 200549618ND
2019-09-19DBP 200549619ND
2019-12-19DBP 200560926ND
2019-12-19DBP 200560927ND
2019-12-19DBP 200560929ND
2019-12-19DBP 200560930ND
2019-12-19DBP 200560931ND
2019-12-19DBP 200560932ND
2019-12-19DBP 200560934ND
2019-12-19DBP 200560935ND