Know Your Environment. Protect Your Health.

Bromoform

Quimper

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)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.1000 ppb51ND - 0.500 ppb
20190.295 ppb115ND - 0.970 ppb
2020N/A00N/A
2021ND10ND
2022ND50ND
20230.630 ppb110.630 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-05ND
2018-05-23ND
2018-05-23ND
2018-08-15ND
2018-11-190.500 ppb
2019-02-260.530 ppb
2019-04-02ND
2019-04-09ND
2019-04-09ND
2019-05-080.500 ppb
2019-05-08ND
2019-06-12ND
2019-08-07ND
2019-08-270.740 ppb
2019-11-190.970 ppb
2019-11-190.500 ppb
2021-04-224120825ND
2022-04-084274909ND
2022-04-134289292ND
2022-04-134289295ND
2022-04-134289293ND
2022-04-134289294ND
2023-05-0944528070.630 ppb