Know Your Environment. Protect Your Health.

Bromoform

Harris County Water Control and Improvement District 89

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.

 

62

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.220 ppb102ND - 1.20 ppb
2019ND100ND
20200.1000 ppb121ND - 1.20 ppb
20211.22 ppb106ND - 3.30 ppb
2022ND100ND
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
2018-01-29AE10966ND
2018-01-29AE109141.000 ppb
2018-01-29AE11016ND
2018-04-11AE22228ND
2018-04-11AE22235ND
2018-08-06AE35807ND
2018-08-06AE35808ND
2018-08-06AE35876ND
2018-11-15AE46218ND
2018-11-15AE462341.20 ppb
2019-02-19AE54829ND
2019-02-19AE54834ND
2019-02-19AE54852ND
2019-02-19AE54888ND
2019-04-19AE63125ND
2019-04-19AE63130ND
2019-08-13AE78252ND
2019-08-13AE78275ND
2019-10-16AE86907ND
2019-10-16AE86916ND
2020-01-22AE94628ND
2020-01-22AE94648ND
2020-01-22AE94706ND
2020-04-22AF07620ND
2020-04-22AF07622ND
2020-04-22AF07674ND
2020-07-29AF211021.20 ppb
2020-07-29AF21104ND
2020-07-29AF21142ND
2020-10-22AF31675ND
2020-10-22AF31643ND
2020-10-22AF31644ND
2021-02-23AF439213.30 ppb
2021-02-23AF439232.90 ppb
2021-02-23AF439371.80 ppb
2021-04-22AF510741.40 ppb
2021-04-22AF510771.10 ppb
2021-04-22AF51136ND
2021-07-08AF61122ND
2021-07-08AF611261.70 ppb
2021-11-29AF77344ND
2021-11-29AF77346ND
2022-01-31AF82503ND
2022-01-31AF82516ND
2022-01-31AF82569ND
2022-01-31AF82573ND
2022-04-25AF94190ND
2022-04-25AF94191ND
2022-07-26AG06346ND
2022-07-26AG06347ND
2022-12-12AG21443ND
2022-12-12AG21452ND
2023-03-07AG31855ND
2023-03-07AG31856ND
2023-03-07Q2309824001ND
2023-04-27AG38410ND
2023-04-27AG38411ND
2023-04-27AG38464ND
2023-07-17AG48709ND
2023-07-17AG48710ND
2023-11-06AG62359ND
2023-11-06AG62360ND