Know Your Environment. Protect Your Health.

Bromodichloromethane

Harris County Water Control and Improvement District 89

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

62

Samples

0

Samples exceeding legal limit (MCL)

48

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20187.06 ppb10103.80 ppb - 11.9 ppb
20196.70 ppb10104.60 ppb - 9.90 ppb
20207.78 ppb12124.30 ppb - 10.7 ppb
20213.81 ppb109ND - 6.20 ppb
20220.340 ppb103ND - 1.20 ppb
20230.470 ppb104ND - 1.50 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-01-29AE109664.50 ppb
2018-01-29AE109144.50 ppb
2018-01-29AE110163.90 ppb
2018-04-11AE2222810.1 ppb
2018-04-11AE2223511.9 ppb
2018-08-06AE358076.20 ppb
2018-08-06AE3580811.4 ppb
2018-08-06AE3587610.00 ppb
2018-11-15AE462184.30 ppb
2018-11-15AE462343.80 ppb
2019-02-19AE548295.30 ppb
2019-02-19AE548345.90 ppb
2019-02-19AE548525.50 ppb
2019-02-19AE548886.40 ppb
2019-04-19AE631254.60 ppb
2019-04-19AE631305.80 ppb
2019-08-13AE782527.80 ppb
2019-08-13AE782757.50 ppb
2019-10-16AE869078.30 ppb
2019-10-16AE869169.90 ppb
2020-01-22AE946287.50 ppb
2020-01-22AE946486.90 ppb
2020-01-22AE947065.60 ppb
2020-04-22AF076206.10 ppb
2020-04-22AF076227.90 ppb
2020-04-22AF076748.80 ppb
2020-07-29AF2110210.7 ppb
2020-07-29AF2110410.2 ppb
2020-07-29AF211429.20 ppb
2020-10-22AF316757.30 ppb
2020-10-22AF316434.30 ppb
2020-10-22AF316448.80 ppb
2021-02-23AF439214.80 ppb
2021-02-23AF439232.50 ppb
2021-02-23AF439374.00 ppb
2021-04-22AF510746.20 ppb
2021-04-22AF510775.30 ppb
2021-04-22AF511364.20 ppb
2021-07-08AF611224.80 ppb
2021-07-08AF611264.60 ppb
2021-11-29AF773441.70 ppb
2021-11-29AF77346ND
2022-01-31AF825031.000 ppb
2022-01-31AF82516ND
2022-01-31AF82569ND
2022-01-31AF82573ND
2022-04-25AF94190ND
2022-04-25AF941911.20 ppb
2022-07-26AG06346ND
2022-07-26AG063471.20 ppb
2022-12-12AG21443ND
2022-12-12AG21452ND
2023-03-07AG31855ND
2023-03-07AG318561.000 ppb
2023-03-07Q2309824001ND
2023-04-27AG384101.50 ppb
2023-04-27AG38411ND
2023-04-27AG38464ND
2023-07-17AG48709ND
2023-07-17AG48710ND
2023-11-06AG623591.000 ppb
2023-11-06AG623601.20 ppb