Know Your Environment. Protect Your Health.

Dibromochloromethane

Crown Ranch Subdivision

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
20190.575 ppb42ND - 1.20 ppb
20201.03 ppb32ND - 2.00 ppb
20214.68 ppb441.000 ppb - 12.0 ppb
20221.07 ppb32ND - 1.80 ppb
20231.87 ppb32ND - 3.80 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2019-08-21AE799101.10 ppb
2019-12-09AE916761.20 ppb
2020-01-27AE953801.10 ppb
2020-01-27AE95388ND
2020-08-20AF245662.00 ppb
2021-08-02AF642072.30 ppb
2021-08-02AF6424612.0 ppb
2021-08-02AF642441.000 ppb
2021-11-01AF752653.40 ppb
2022-01-20AF810081.40 ppb
2022-01-20AF81018ND
2022-08-03AG075861.80 ppb
2023-07-18AG489771.80 ppb
2023-07-18AG490423.80 ppb
2023-07-18AG49088ND