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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Clinton

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

 

26

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND20ND
20161.40 ppb221.22 ppb - 1.59 ppb
2017ND20ND
20180.500 ppb21ND - 1.000 ppb
2019ND20ND

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
2014-03-0537729_14-06442ND
2014-03-0537729_14-06443ND
2014-03-0537729_14-06441ND
2014-03-0637729_14-06455ND
2014-06-0237729_14-15601ND
2014-06-0237729_14-15602ND
2014-06-0237729_14-15603ND
2014-06-0237729_14-15604ND
2014-09-0337729_14-26637ND
2014-09-0337729_14-26638ND
2014-09-0337729_14-26639ND
2014-09-0337729_14-26640ND
2014-12-0337729_14-36698ND
2014-12-0337729_14-36700ND
2014-12-0337729_14-36699ND
2014-12-0337729_14-36697ND
2015-09-09ND
2015-09-09ND
2016-09-1237729_16-316971.59 ppb
2016-09-1237729_16-316981.22 ppb
2017-09-0637729_17-32671ND
2017-09-0637729_17-32677ND
2018-09-2537729_18-39005 1.000 ppb
2018-09-2537729_18-39006 ND
2019-09-1737729_19-40046 ND
2019-09-1737729_19-40047 ND