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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Scottville, City of

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.229 ppb73ND - 0.600 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
20180.217 ppb62ND - 0.700 ppb
2019ND110ND

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
2014-02-12LLF09530ND
2014-02-12LLF09531ND
2014-05-13LLF18003ND
2014-05-13LLF18002ND
2014-08-13LLF328080.600 ppb
2014-08-13LLF328050.500 ppb
2014-11-12LLF462920.500 ppb
2018-02-12LLH65387ND
2018-05-15LLH80828ND
2018-08-07LLH977660.700 ppb
2018-09-12LLI051150.600 ppb
2018-11-13LLI15458ND
2018-11-29LLI17186ND
2019-05-08LLI37074ND
2019-08-21LLI58390ND
2019-08-21LLI58390ND
2019-08-21LLI58390ND
2019-08-21LLI58390ND
2019-08-21LLI58390ND
2019-08-21LLI58390ND
2019-08-21LLI58390ND
2019-08-21LLI58390ND
2019-11-06LLI75690ND
2019-12-11LLI82940ND