Know Your Environment. Protect Your Health.

Bromodichloromethane

Marathon Water Supply & Sewer Service Company

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

15

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
20190.780 ppb32ND - 1.22 ppb
2020ND30ND
2021ND20ND
20220.625 ppb21ND - 1.25 ppb
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was 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 and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-28Q1808790004ND
2018-02-28Q1808790006ND
2018-02-28Q1808790010ND
2019-06-18Q1937878001ND
2019-06-18Q19378780051.22 ppb
2019-06-18Q19378780061.12 ppb
2020-06-22Q2025194001ND
2020-06-22Q2025194007ND
2020-06-22Q2025194008ND
2021-06-23Q2116477004ND
2021-06-23Q2116477009ND
2022-08-09Q2223218002ND
2022-08-09Q22232180051.25 ppb
2023-07-26Q2329856002ND
2023-07-26Q2329856003ND