Know Your Environment. Protect Your Health.

Bromoform

Hemlock Mutual Water Company

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)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021N/A00N/A
2022ND20ND
20231.25 ppb21ND - 2.50 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
2018-07-25CA1910053_DST_800-201807251445ND
2018-07-25CA1910053_DST_801-201807251500ND
2019-07-25CA1910053_DST_801-201907251130ND
2019-07-25CA1910053_DST_800-201907251140ND
2020-07-31CA1910053_DST_800-202007310935ND
2020-07-31CA1910053_DST_801-202007310925ND
2022-07-28CA1910053_DST_801-202207280710ND
2022-07-28CA1910053_DST_800-202207280720ND
2023-07-31CA1910053_DST_800-2023073107302.50 ppb
2023-07-31CA1910053_DST_801-202307310710ND