Know Your Environment. Protect Your Health.

Dibromochloromethane

City of Cooper

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)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.446 ppb52ND - 1.23 ppb
2019ND50ND
20200.214 ppb51ND - 1.07 ppb
20210.280 ppb51ND - 1.40 ppb
20220.512 ppb52ND - 1.54 ppb
2023ND50ND

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
2018-02-14Q18062340021.23 ppb
2018-05-24Q1820900002ND
2018-06-21Q1824879004ND
2018-08-09Q18319650011.000 ppb
2018-11-06Q1844312002ND
2019-02-28Q1908773001ND
2019-05-20Q1926757002ND
2019-09-13Q1964926002ND
2019-12-02Q1978461005ND
2019-12-02Q1978461006ND
2020-03-30Q2012912001ND
2020-03-30Q2012912008ND
2020-05-28Q2021182002ND
2020-09-23Q20377070021.07 ppb
2020-11-23Q2046616001ND
2021-02-08Q2103697002ND
2021-02-08Q2103697007ND
2021-05-06Q2111773002ND
2021-09-20Q2125617002ND
2021-11-10Q21315790021.40 ppb
2022-01-31Q2203342005ND
2022-01-31Q22033420131.02 ppb
2022-04-18Q2212085002ND
2022-08-24Q22252070021.54 ppb
2022-12-05Q2236035002ND
2023-03-15Q2310229004ND
2023-03-15Q2310229008ND
2023-05-30Q2319966002ND
2023-09-25Q2341201001ND
2023-11-28Q2350596002ND