Know Your Environment. Protect Your Health.

Bromoform

Harris County Municipal Utility District 23

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

 

57

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.620 ppb104ND - 2.10 ppb
20192.51 ppb109ND - 13.0 ppb
20202.91 ppb85ND - 7.50 ppb
2021ND100ND
2022ND90ND
2023ND100ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is 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, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-08AE130091.40 ppb
2018-02-08AE13071ND
2018-02-08AE13075ND
2018-02-08AE130081.20 ppb
2018-05-10AE25902ND
2018-05-10AE25911ND
2018-08-13AE36590ND
2018-08-13AE36593ND
2018-11-30AE475571.50 ppb
2018-11-30AE475652.10 ppb
2019-02-25AE556352.00 ppb
2019-02-25AE556361.70 ppb
2019-02-25AE556891.000 ppb
2019-04-22AE631221.50 ppb
2019-04-22AE631592.40 ppb
2019-07-23AE755051.10 ppb
2019-07-23AE75507ND
2019-11-19AE897661.30 ppb
2019-11-19AE897671.10 ppb
2019-11-19AE8979313.0 ppb
2020-03-11AF022225.60 ppb
2020-03-11AF022234.60 ppb
2020-03-11AF022584.60 ppb
2020-03-11AF022627.50 ppb
2020-05-27AF12856ND
2020-05-27AF128661.000 ppb
2020-10-23AF31856ND
2020-10-23AF31857ND
2021-01-13AF39106ND
2021-01-13AF39146ND
2021-01-13AF39107ND
2021-01-13AF39144ND
2021-04-05AF48937ND
2021-04-05AF48953ND
2021-09-01AF68534ND
2021-09-01AF68535ND
2021-10-13AF73317ND
2021-10-13AF73318ND
2022-01-25AF81576ND
2022-01-25AF81579ND
2022-01-25AF81664ND
2022-04-19AF93646ND
2022-04-19AF93647ND
2022-09-07AG11826ND
2022-09-07AG11829ND
2022-11-21AG19393ND
2022-11-21AG19396ND
2023-01-17AG24635ND
2023-01-17AG24640ND
2023-01-17AG24742ND
2023-04-06AG35800ND
2023-04-06AG35804ND
2023-04-06AG35822ND
2023-08-22AG53456ND
2023-08-22AG53464ND
2023-11-06AG62331ND
2023-11-06AG62334ND