Know Your Environment. Protect Your Health.

Bromoform

San Gabriel Valley Water Company-Montebello

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
20221.25 ppb2610ND - 6.50 ppb
20231.05 ppb221.000 ppb - 1.10 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
2018-09-12CA1910189_DST_800-201809120821ND
2018-09-12CA1910189_DST_801-201809120810ND
2019-09-25CA1910189_DST_800-201909250915ND
2019-09-25CA1910189_DST_801-201909250923ND
2020-09-15CA1910189_DST_801-202009150920ND
2020-09-15CA1910189_DST_800-202009150900ND
2021-09-21CA1910189_DST_801-202109211411ND
2021-09-21CA1910189_DST_800-202109211420ND
2023-09-19CA1910189_DST_801-2023091912251.10 ppb
2023-09-19CA1910189_DST_800-2023091912421.000 ppb