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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Ypsilanti Community Utility Authority

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.125 ppb81ND - 1.000 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND70ND
2019ND80ND

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
2014-02-12LLF09450ND
2014-02-12LLF09449ND
2014-05-07LLF175071.000 ppb
2014-05-08LLF17508ND
2014-08-12LLF32105ND
2014-08-12LLF32106ND
2014-11-04LLF45489ND
2014-11-04LLF45490ND
2018-02-14LLH65664ND
2018-02-14LLH65665ND
2018-05-15LLH81069ND
2018-05-15LLH81068ND
2018-08-08LLH98088ND
2018-11-13LLI15491ND
2018-11-13LLI15492ND
2019-02-20LLI26498ND
2019-02-20LLI26499ND
2019-05-09LLI37097ND
2019-05-09LLI37096ND
2019-08-15LLI56688ND
2019-08-15LLI56687ND
2019-11-20LLI78199ND
2019-11-20LLI78200ND