Know Your Environment. Protect Your Health.

Bromodichloromethane

Harris County Water Control and Improvement District 114

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.

 

66

Samples

0

Samples exceeding legal limit (MCL)

47

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.63 ppb118ND - 15.0 ppb
20192.77 ppb117ND - 21.0 ppb
20202.21 ppb119ND - 4.20 ppb
20211.58 ppb119ND - 2.40 ppb
20221.47 ppb118ND - 2.80 ppb
20230.964 ppb116ND - 2.30 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
2018-01-09AE083191.80 ppb
2018-01-09AE083131.70 ppb
2018-04-03AE20968ND
2018-04-03AE20969ND
2018-04-03AE21037ND
2018-04-03AE2104115.0 ppb
2018-07-09AE325852.50 ppb
2018-07-09AE325962.60 ppb
2018-07-09AE326582.10 ppb
2018-10-08AE427861.50 ppb
2018-10-08AE427901.70 ppb
2019-02-12AE540631.30 ppb
2019-02-12AE54067ND
2019-05-08AE654731.60 ppb
2019-05-08AE65465ND
2019-05-08AE654221.90 ppb
2019-05-08AE654141.80 ppb
2019-05-08AE6545721.0 ppb
2019-07-15AE743691.40 ppb
2019-07-15AE743881.50 ppb
2019-10-14AE86447ND
2019-10-14AE86449ND
2020-01-27AE952832.00 ppb
2020-01-27AE952841.90 ppb
2020-01-27AE954144.20 ppb
2020-04-23AF079862.60 ppb
2020-04-23AF080153.10 ppb
2020-04-23AF08013ND
2020-04-23AF079872.40 ppb
2020-07-15AF194511.10 ppb
2020-07-15AF19454ND
2020-10-15AF308033.40 ppb
2020-10-15AF308053.60 ppb
2021-02-01AF418561.80 ppb
2021-02-01AF41909ND
2021-02-01AF418581.50 ppb
2021-04-15AF503092.10 ppb
2021-04-15AF503152.30 ppb
2021-04-15AF503541.80 ppb
2021-04-15AF50368ND
2021-07-20AF626442.00 ppb
2021-07-20AF626462.40 ppb
2021-10-19AF739181.80 ppb
2021-10-19AF739221.70 ppb
2022-02-10AF842191.20 ppb
2022-02-10AF842211.30 ppb
2022-02-10AF843112.80 ppb
2022-04-20AF93896ND
2022-04-20AF938921.90 ppb
2022-04-20AF938622.10 ppb
2022-04-20AF938692.50 ppb
2022-08-03AG07596ND
2022-08-03AG07597ND
2022-10-19AG176172.30 ppb
2022-10-19AG176182.10 ppb
2023-01-31AG26774ND
2023-01-31AG26758ND
2023-01-31AG26756ND
2023-02-24AG306211.40 ppb
2023-02-24AG30623ND
2023-06-06AG432561.50 ppb
2023-06-06AG432591.50 ppb
2023-08-02AG51037ND
2023-08-02AG510662.20 ppb
2023-11-07AG625502.30 ppb
2023-11-07AG625651.70 ppb