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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Liberty City Water Supply Corporation

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

 

29

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.32 ppb41ND - 5.26 ppb
20150.232 ppb51ND - 1.16 ppb
20161.49 ppb53ND - 4.63 ppb
20170.600 ppb52ND - 1.88 ppb
2018ND50ND
2019ND50ND

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
2014-06-16Q1421358001ND
2014-06-30Q1424517016ND
2014-06-30Q14245170045.26 ppb
2014-06-30Q1424517002ND
2015-04-14Q1513785002ND
2015-04-14Q15137850121.16 ppb
2015-04-14Q1513785009ND
2015-05-05Q1516377005ND
2015-05-05Q1516377002ND
2016-05-12Q16190650014.63 ppb
2016-05-12Q1619065010ND
2016-05-12Q1619065007ND
2016-05-12Q16190650051.12 ppb
2016-05-12Q16190650041.68 ppb
2017-03-28Q1712865022ND
2017-03-28Q1712865004ND
2017-03-28Q17128650211.12 ppb
2017-03-28Q17128650021.88 ppb
2017-06-08Q1724206001ND
2018-06-14Q1823909005ND
2018-06-14Q1823909012ND
2018-06-14Q1823909006ND
2018-06-14Q1823909010ND
2018-06-14Q1823909009ND
2019-03-28Q1912649013ND
2019-03-28Q1912649012ND
2019-03-28Q1912649009ND
2019-03-28Q1912649008ND
2019-07-09Q1943724001ND