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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Riverview

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.238 ppb83ND - 0.700 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
20180.131 ppb133ND - 0.700 ppb
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
2014-01-15LLF070660.600 ppb
2014-01-15LLF070650.700 ppb
2014-04-15LLF14726ND
2014-04-15LLF14727ND
2014-07-15LLF27472ND
2014-07-15LLF27473ND
2014-10-14LLF431290.600 ppb
2014-10-14LLF43128ND
2018-01-23LLH62473ND
2018-04-18LLH75975ND
2018-04-18LLH75975ND
2018-04-18LLH75975ND
2018-04-18LLH75974ND
2018-04-18LLH75974ND
2018-04-18LLH75974ND
2018-04-18LLH75974ND
2018-04-18LLH75975ND
2018-07-17LLH93628ND
2018-07-17LLH936270.500 ppb
2018-10-03LLI100810.500 ppb
2018-10-03LLI100820.700 ppb
2019-01-08LLI21735ND
2019-01-08LLI21734ND
2019-04-02LLI31798ND
2019-04-02LLI31797ND
2019-07-02LLI47792ND
2019-07-02LLI47791ND
2019-10-02LLI68936ND
2019-10-02LLI68935ND