Know Your Environment. Protect Your Health.

Dibromochloromethane

Coons Run Psd

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.175 ppb41ND - 0.700 ppb
20190.250 ppb41ND - 1.000 ppb
20200.269 ppb85ND - 0.650 ppb
20210.125 ppb81ND - 1.000 ppb
2022ND70ND
2023ND80ND

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
2018-02-13281362-2018-DWND
2018-05-16286038-2018-DWND
2018-08-05291451-2018-DW0.700 ppb
2018-11-26297531-2018-DWND
2019-02-13300891-2019-DWND
2019-05-07305052-2019-DWND
2019-08-14310576-2019-DW1.000 ppb
2019-11-13316071-2019-DWND
2020-02-0673170760020.310 ppb
2020-02-0673170760020.310 ppb
2020-02-0673170760010.440 ppb
2020-02-0673170760010.440 ppb
2020-05-197328162002ND
2020-05-197328162001ND
2020-11-2373514140020.650 ppb
2020-11-237351414001ND
2021-02-127360278002ND
2021-02-127360278001ND
2021-05-067370287002ND
2021-05-067370287001ND
2021-08-051083541-02ND
2021-08-051083541-01ND
2021-11-041113425-02ND
2021-11-041113425-011.000 ppb
2022-02-092024001-04ND
2022-02-092024001-02ND
2022-05-112054401-01ND
2022-05-112054401-02ND
2022-08-102085192-01ND
2022-11-042113449-03ND
2022-11-042113449-01ND
2023-02-173024527-01ND
2023-02-173024527-03ND
2023-05-053053259-01ND
2023-05-053053259-03ND
2023-08-043083520-01ND
2023-08-043083520-03ND
2023-11-023112707-01ND
2023-11-023112707-03ND