Know Your Environment. Protect Your Health.

Dibromochloromethane

City of Aubrey

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

30

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.62 ppb661.02 ppb - 3.42 ppb
20190.832 ppb63ND - 1.81 ppb
20201.38 ppb75ND - 4.15 ppb
20210.877 ppb64ND - 1.72 ppb
20221.16 ppb64ND - 2.30 ppb
20231.85 ppb98ND - 3.67 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
2018-03-15Q18108370041.19 ppb
2018-03-15Q18108370061.02 ppb
2018-03-15Q18108370081.13 ppb
2018-03-15Q18108370021.16 ppb
2018-07-10Q18274570013.42 ppb
2018-07-10Q18274570021.79 ppb
2019-05-15Q19262330151.81 ppb
2019-05-15Q19262330141.56 ppb
2019-05-15Q1926233007ND
2019-05-15Q19262330051.62 ppb
2019-05-15Q1926233003ND
2019-05-15Q1926233001ND
2020-03-26Q2012850003ND
2020-05-18Q20196510011.37 ppb
2020-05-18Q20196510034.15 ppb
2020-05-18Q20196510042.10 ppb
2020-10-05Q20388280081.01 ppb
2020-10-05Q20388280101.01 ppb
2020-10-05Q2038828012ND
2021-07-01Q2117370012ND
2021-07-01Q21173700211.72 ppb
2021-07-01Q2117370018ND
2021-07-01Q21173700141.09 ppb
2021-07-01Q21173700111.05 ppb
2021-07-01Q21173700161.40 ppb
2022-08-24Q22252000012.07 ppb
2022-08-24Q22252000022.30 ppb
2022-10-13Q2231065002ND
2022-10-13Q22310650041.21 ppb
2022-10-13Q22310650061.39 ppb
2022-10-13Q2231065008ND
2023-04-11Q23133000121.75 ppb
2023-09-26Q23412710061.81 ppb
2023-09-26Q23412710081.52 ppb
2023-09-26Q2341271010ND
2023-09-26Q23412710121.54 ppb
2023-09-26Q23412710342.32 ppb
2023-09-26Q23412710352.44 ppb
2023-09-26Q23412710373.67 ppb
2023-11-14Q23487520051.63 ppb