Know Your Environment. Protect Your Health.

Bromoform

Harris County Water Control and Improvement District Fondren Road

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

25

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.417 ppb62ND - 1.30 ppb
20191.62 ppb65ND - 2.40 ppb
20200.933 ppb64ND - 1.70 ppb
20211.89 ppb84ND - 4.40 ppb
20222.52 ppb551.000 ppb - 4.80 ppb
20232.65 ppb65ND - 6.70 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
2018-02-28AE160591.20 ppb
2018-02-28AE160271.30 ppb
2018-02-28AE16063ND
2018-05-01AE24567ND
2018-07-24AE34322ND
2018-10-04AE42693ND
2019-01-30AE521951.80 ppb
2019-01-30AE522402.10 ppb
2019-01-30AE52242ND
2019-04-18AE629622.30 ppb
2019-08-12AE780381.10 ppb
2019-10-16AE867572.40 ppb
2020-01-21AE943121.20 ppb
2020-01-21AE943631.30 ppb
2020-01-21AE94365ND
2020-04-09AF062961.70 ppb
2020-07-16AF196861.40 ppb
2020-10-08AF29980ND
2021-01-13AF391302.60 ppb
2021-05-12AF53523ND
2021-06-15AF58084ND
2021-06-29AF59932ND
2021-08-10AF65616ND
2021-09-23AF710534.40 ppb
2021-10-11AF728914.30 ppb
2021-10-11AF729103.80 ppb
2022-03-16AF893451.60 ppb
2022-03-16AF893771.000 ppb
2022-05-17AF972352.00 ppb
2022-09-16AG135583.20 ppb
2022-11-21AG194304.80 ppb
2023-01-25AG262332.80 ppb
2023-01-25AG262622.10 ppb
2023-01-25AG262661.90 ppb
2023-05-04AG39373ND
2023-09-26AG576116.70 ppb
2023-10-18AG602832.40 ppb