Know Your Environment. Protect Your Health.

Dibromochloromethane

City of Plains

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.765 ppb21ND - 1.53 ppb
20190.635 ppb21ND - 1.27 ppb
20201.65 ppb221.16 ppb - 2.14 ppb
2021ND20ND
20221.10 ppb21ND - 2.20 ppb
20230.725 ppb21ND - 1.45 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
2018-01-24Q1802812001ND
2018-07-12Q18276800021.53 ppb
2019-01-09Q19010220011.27 ppb
2019-07-02Q1941979003ND
2020-03-10Q20095370012.14 ppb
2020-06-10Q20236040031.16 ppb
2021-03-02Q2105372006ND
2021-05-03Q2111103003ND
2022-03-01Q2206966002ND
2022-09-14Q22276190032.20 ppb
2023-02-13Q2305526002ND
2023-08-28Q23367500031.45 ppb