Know Your Environment. Protect Your Health.

Dibromochloromethane

New Horizons Ranch & Center

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20185.70 ppb54ND - 12.0 ppb
20192.60 ppb52ND - 11.3 ppb
202010.1 ppb54ND - 22.3 ppb
20217.22 ppb551.40 ppb - 21.7 ppb
202212.0 ppb54ND - 49.2 ppb
20237.06 ppb551.20 ppb - 16.8 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
2018-01-18AE092872.70 ppb
2018-01-18AE092393.20 ppb
2018-05-23AE2740912.0 ppb
2018-08-23AE3825410.6 ppb
2018-11-06AE45356ND
2019-03-01AE56733ND
2019-03-01AE56735ND
2019-05-02AE64608ND
2019-08-06AE771921.70 ppb
2019-10-22AE8718011.3 ppb
2020-01-16AE939396.00 ppb
2020-04-07AF058536.80 ppb
2020-07-07AF1820315.6 ppb
2020-07-07AF18226ND
2020-11-09AF3358422.3 ppb
2021-03-01AF446184.70 ppb
2021-03-01AF446521.40 ppb
2021-04-12AF4975521.7 ppb
2021-07-08AF610665.70 ppb
2021-10-07AF725372.60 ppb
2022-01-27AF821922.10 ppb
2022-01-27AF822541.20 ppb
2022-04-14AF93348ND
2022-07-14AG046807.60 ppb
2022-10-20AG1778449.2 ppb
2023-01-11AG2400516.8 ppb
2023-01-11AG240752.20 ppb
2023-04-06AG3577511.5 ppb
2023-08-23AG536623.60 ppb
2023-11-16AG638901.20 ppb