Know Your Environment. Protect Your Health.

Dibromochloromethane

Cox Addition Water System

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND10ND
2021ND10ND
20221.17 ppb21ND - 2.33 ppb
20232.18 ppb112.18 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
2018-05-09Q1819092003ND
2019-06-13Q1936515002ND
2019-06-13Q1936515003ND
2020-03-16Q2011279004ND
2021-06-03Q2114443001ND
2022-01-31Q22034360022.33 ppb
2022-07-18Q2220651003ND
2023-02-22Q23074540022.18 ppb