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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Michigan State University

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

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND190ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND250ND
2019ND240ND

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
2014-03-05LLF11009ND
2014-03-05LLF11010ND
2014-03-05LLF11011ND
2014-03-05LLF11012ND
2014-06-02LLF20268ND
2014-06-02LLF20271ND
2014-06-02LLF20270ND
2014-06-02LLF20269ND
2014-09-02LLF35801ND
2014-09-02LLF35803ND
2014-09-02LLF35802ND
2014-09-02LLF35800ND
2014-10-23LLF44294ND
2014-10-23LLF44295ND
2014-10-23LLF44293ND
2014-12-03LLF48142ND
2014-12-03LLF48143ND
2014-12-03LLF48140ND
2014-12-03LLF48141ND
2018-01-17LLH61375ND
2018-01-17LLH61376ND
2018-03-14LLH70731ND
2018-03-14LLH70728ND
2018-03-14LLH70730ND
2018-03-14LLH70727ND
2018-03-14LLH70729ND
2018-03-14LLH70732ND
2018-06-11LLH85284ND
2018-06-11LLH85280ND
2018-06-11LLH85283ND
2018-06-11LLH85281ND
2018-06-11LLH85282ND
2018-09-04LLI02914ND
2018-09-04LLI02911ND
2018-09-04LLI02913ND
2018-09-04LLI02912ND
2018-09-05LLI03198ND
2018-10-23LLI12549ND
2018-12-04LLI17634ND
2018-12-04LLI17633ND
2018-12-04LLI17636ND
2018-12-04LLI17635ND
2018-12-06LLI18257ND
2018-12-14LLI19425ND
2019-03-07LLI28375ND
2019-03-08LLI28523ND
2019-03-08LLI28526ND
2019-03-08LLI28524ND
2019-03-08LLI28525ND
2019-06-04LLI40694ND
2019-06-04LLI40696ND
2019-06-04LLI40693ND
2019-06-04LLI40695ND
2019-06-05LLI41086ND
2019-09-03LLI61009ND
2019-09-03LLI61007ND
2019-09-03LLI61010ND
2019-09-03LLI61008ND
2019-11-20LLI78249ND
2019-12-03LLI80768ND
2019-12-03LLI80765ND
2019-12-03LLI80767ND
2019-12-03LLI80766ND
2019-12-12LLI83101ND
2019-12-12LLI83104ND
2019-12-12LLI83102ND
2019-12-12LLI83103ND
2019-12-23LLI85472ND