Know Your Environment. Protect Your Health.

Dibromochloromethane

City of West Tawakoni

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)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.296 ppb51ND - 1.48 ppb
2019ND50ND
2020ND50ND
20210.359 ppb72ND - 1.49 ppb
20221.11 ppb94ND - 3.34 ppb
20231.35 ppb97ND - 2.13 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
2018-02-13Q1805804002ND
2018-05-08Q1818536003ND
2018-05-08Q1818536004ND
2018-08-16Q18329170011.48 ppb
2018-11-30Q1848948001ND
2019-03-07Q1909951003ND
2019-03-07Q1909951012ND
2019-05-13Q1923869002ND
2019-08-07Q1951800002ND
2019-12-12Q1979955002ND
2020-03-17Q2011583008ND
2020-03-17Q2011583001ND
2020-05-21Q2020425002ND
2020-09-21Q2037385002ND
2020-12-15Q2049668001ND
2021-03-25Q21077910021.49 ppb
2021-06-10Q2115231002ND
2021-09-15Q21252810011.02 ppb
2021-09-15Q2125281002ND
2021-11-04Q2131004008ND
2021-11-04Q2131004007ND
2021-11-04Q2131004002ND
2022-02-07Q2204051001ND
2022-02-07Q2204051002ND
2022-05-18Q22147240013.05 ppb
2022-05-18Q22147240023.34 ppb
2022-08-23Q22249800011.70 ppb
2022-08-23Q22249800021.89 ppb
2022-12-07Q2236661008ND
2022-12-07Q2236661006ND
2022-12-07Q2236661005ND
2023-02-16Q2306410001ND
2023-02-16Q2306410002ND
2023-05-24Q23195850011.45 ppb
2023-05-24Q23195850071.91 ppb
2023-05-24Q23195850082.13 ppb
2023-07-25Q23294800011.99 ppb
2023-07-25Q23294800022.11 ppb
2023-11-16Q23494400011.24 ppb
2023-11-16Q23494400021.29 ppb