Know Your Environment. Protect Your Health.

Bromoform

Zone 2 Water System Inc.

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
20190.505 ppb440.500 ppb - 0.510 ppb
20200.585 ppb220.480 ppb - 0.690 ppb
2021ND20ND
20220.280 ppb21ND - 0.560 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
2018-08-0835410315001ND
2018-08-0835410315002ND
2018-08-0835410315001ND
2018-08-0835410315002ND
2019-08-19354920300010.510 ppb
2019-08-19354920300020.500 ppb
2019-08-19354920300010.510 ppb
2019-08-19354920300020.500 ppb
2020-08-06355687440010.480 ppb
2020-08-06355687440020.690 ppb
2021-08-1235655898001ND
2021-08-1235655898002ND
2022-08-02357362910010.560 ppb
2022-08-0235736291002ND
2023-08-1435820952001ND
2023-08-1435820952002ND