Know Your Environment. Protect Your Health.

Bromoform

Harris County Municipal Utility District 136

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
20190.280 ppb51ND - 1.40 ppb
20200.480 ppb52ND - 1.40 ppb
20211.26 ppb53ND - 2.60 ppb
20220.240 ppb51ND - 1.20 ppb
20230.740 ppb53ND - 1.60 ppb

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
2018-02-08AE13047ND
2018-02-08AE13013ND
2018-05-08AE25558ND
2018-08-01AE35289ND
2018-10-24AE44467ND
2019-01-28AE51613ND
2019-01-28AE51696ND
2019-04-23AE633681.40 ppb
2019-07-30AE76386ND
2019-10-10AE86289ND
2020-01-13AE93088ND
2020-04-01AF05265ND
2020-04-01AF05285ND
2020-09-21AF278721.40 ppb
2020-11-05AF334391.000 ppb
2021-03-09AF459611.80 ppb
2021-03-09AF460501.90 ppb
2021-04-20AF506852.60 ppb
2021-07-23AF63257ND
2021-10-12AF73139ND
2022-03-01AF86862ND
2022-03-01AF86928ND
2022-05-09AF95945ND
2022-08-10AG08519ND
2022-11-14AG186771.20 ppb
2023-02-22AG29903ND
2023-05-15AG404801.000 ppb
2023-05-15AG40518ND
2023-07-17AG487371.10 ppb
2023-10-09AG588711.60 ppb