Know Your Environment. Protect Your Health.

Bromodichloromethane

Crown Ranch Subdivision

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
20200.467 ppb31ND - 1.40 ppb
20212.15 ppb43ND - 5.10 ppb
20220.800 ppb32ND - 1.40 ppb
20231.10 ppb32ND - 2.00 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 Lab ID Result
2018-06-14AE30058ND
2018-06-14AE30011ND
2019-01-16AE50150ND
2019-04-16AE62572ND
2019-08-21AE79910ND
2019-12-09AE91676ND
2020-01-27AE95380ND
2020-01-27AE95388ND
2020-08-20AF245661.40 ppb
2021-08-02AF642071.60 ppb
2021-08-02AF642465.10 ppb
2021-08-02AF64244ND
2021-11-01AF752651.90 ppb
2022-01-20AF810081.000 ppb
2022-01-20AF81018ND
2022-08-03AG075861.40 ppb
2023-07-18AG489771.30 ppb
2023-07-18AG490422.00 ppb
2023-07-18AG49088ND