Know Your Environment. Protect Your Health.

Bromoform

Jennie Clarkson Home

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.500 ppb220.500 ppb
20190.815 ppb220.670 ppb - 0.960 ppb
20202.20 ppb54ND - 6.00 ppb
20211.34 ppb53ND - 4.86 ppb
20220.880 ppb52ND - 2.30 ppb
20230.858 ppb550.538 ppb - 1.20 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
2018-08-094201409382DBP20.500 ppb
2018-08-094201409381DBP20.500 ppb
2019-08-124201584751-DBP20.670 ppb
2019-08-124201584752-DBP20.960 ppb
2020-04-13AW06907-DBP2ND
2020-08-134201784932-DBP22.00 ppb
2020-08-134201784931-DBP21.000 ppb
2020-11-24AW22612-DBP26.00 ppb
2020-11-24AW22610-DBP22.00 ppb
2021-02-08AX02628-DBP2ND
2021-07-20AX14328-DBP2ND
2021-07-20AX14326-DBP24.86 ppb
2021-08-104202039092-DBP20.650 ppb
2021-08-104202039091-DBP21.20 ppb
2022-01-19AY01105-DBP2ND
2022-08-12420-232235-2-DBP22.10 ppb
2022-08-12420-232235-1-DBP22.30 ppb
2022-08-23AY14972-DBP2ND
2022-08-23AY14974-DBP2ND
2023-01-23AZ01381-DBP20.949 ppb
2023-08-1423H2019-02-DBP21.20 ppb
2023-08-1423H2019-01-DBP20.960 ppb
2023-09-19AZ17305-DBP20.538 ppb
2023-09-19AZ17307-DBP20.642 ppb