Know Your Environment. Protect Your Health.

Bromoform

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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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.33 ppb43ND - 13.0 ppb
20191.17 ppb32ND - 2.10 ppb
20200.260 ppb21ND - 0.520 ppb
2021ND10ND
20220.470 ppb21ND - 0.940 ppb
2023ND20ND

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
2018-01-23AJ769570.900 ppb
2018-04-09AJ87016ND
2018-07-18AJ947393.40 ppb
2018-10-24AK0477713.0 ppb
2019-01-22AK09816ND
2019-04-22AK155672.10 ppb
2019-06-25AK208871.40 ppb
2020-02-19AK41841ND
2020-02-19AK418420.520 ppb
2021-02-15AK69954ND
2022-03-03AK963680.940 ppb
2022-07-07AL05046ND
2023-05-11AL31582ND
2023-10-11AL46949ND