Know Your Environment. Protect Your Health.

Bromodichloromethane

Paddock Estates

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND40ND
20210.733 ppb31ND - 2.20 ppb
20223.45 ppb21ND - 6.90 ppb
20234.66 ppb53ND - 8.90 ppb

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 Result
2018-03-05ND
2018-05-14ND
2019-05-20ND
2020-03-26ND
2020-05-14ND
2020-05-14ND
2020-05-14ND
2021-01-08ND
2021-01-08ND
2021-09-172.20 ppb
2022-06-176.90 ppb
2022-07-19ND
2023-04-127.20 ppb
2023-04-12ND
2023-04-12ND
2023-08-237.20 ppb
2023-08-238.90 ppb